{"title":"Defrost Controls","description":null,"products":[{"product_id":"carrier-tchc2550hecmrsh500-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA005 — TCHC2550HECMRSH500","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA005 for Model TCHC2550HECMRSH500\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA005\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier TCHC2550HECMRSH500\u003c\/strong\u003e heat pump system. The defrost control board manages the timing and execution of the defrost cycle, monitoring system parameters — including temperature and elapsed run time — to trigger defrost events that prevent ice accumulation on the outdoor evaporator coil. When this board fails, symptoms typically include continuous ice buildup on the outdoor unit, a system that never enters defrost mode, erratic defrost cycling, or a heat pump that locks out and stops heating altogether. Replacing the board with a genuine OEM unit restores factory-programmed defrost logic and system reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA005 | Also cross-references: CEPL130856-01-R, CEBD430856-06-RA | Carrier Factory Authorized Part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM boards use factory-calibrated defrost algorithms. Aftermarket boards often carry timing tolerances that can cause premature or delayed defrost events, accelerating compressor wear and reducing system efficiency ratings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires shutting down and locking out the heat pump before accessing the control panel. Tools needed: insulated screwdrivers, nut driver set, needle-nose pliers, phone camera (photograph all wiring before disconnecting). Label each connector before removal. If unsure, consult a licensed HVAC technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct drop-in replacement for the \u003cstrong\u003eCarrier TCHC2550HECMRSH500\u003c\/strong\u003e. Always verify your existing board's part number against HK32EA005 before ordering. Not sure if this is the right board? Our HVAC parts specialists verify fitment before you buy — contact us today and get your system back to peak performance fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640267526515,"sku":"CARRIE-TCHC2550HECMRSH500-CONTROL_BOARD-HK32EA005","price":381.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640267559283,"sku":"CARRIE-TCHC2550HECMRSH500-CONTROL_BOARD-HK32EA005-GEN","price":335.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA005_40adc33c-d9a4-4c15-81c1-06f1e1fe8da7.jpg?v=1775026847"},{"product_id":"carrier-tchc2550hecmrmh500-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA005 — TCHC2550HECMRMH500","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA005 for Model TCHC2550HECMRMH500\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA005\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier TCHC2550HECMRMH500\u003c\/strong\u003e heat pump system. The defrost control board manages the timing and execution of the defrost cycle, monitoring system parameters such as outdoor coil temperature and elapsed run time to determine when to initiate and terminate defrost. When this board fails, you'll typically see symptoms including persistent ice buildup on the outdoor coil, the system failing to enter defrost mode, erratic or continuous defrost cycling, or a complete system lockout with a fault code indicating a defrost control failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA005 | Also referenced as CEPL130856-01-R and CEBD430856-06-RA | Factory-authorized Carrier replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier OEM board is pre-programmed with factory defrost algorithms and timing logic matched to the TCHC2550HECMRMH500. Aftermarket boards may use generic timing parameters that degrade efficiency, cause premature compressor wear, or void remaining equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring and line-voltage connectors. Tools needed: ¼\" nut driver, needle-nose pliers, multimeter, and phone or camera to photograph all wire positions before removal. Always shut off power at the disconnect and verify with a multimeter before touching terminals. Refer to the unit's wiring diagram (located inside the access panel) during reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct drop-in replacement for the \u003cstrong\u003eCarrier TCHC2550HECMRMH500\u003c\/strong\u003e heat pump. Verify your existing board's part number on the board label before ordering to confirm fitment — serial number ranges may apply. If you have any questions about compatibility, our HVAC parts specialists are available to confirm fitment before you buy. \u003cstrong\u003eOrder today and ship today — in stock and ready to go.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640271819123,"sku":"CARRIE-TCHC2550HECMRMH500-CONTROL_BOARD-HK32EA005","price":356.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640271851891,"sku":"CARRIE-TCHC2550HECMRMH500-CONTROL_BOARD-HK32EA005-GEN","price":313.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA005_e687a15f-2f26-40ba-aada-95a2adecd954.jpg?v=1775026845"},{"product_id":"carrier-tchc2550hecmrah100-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA005 — TCHC2550HECMRAH100","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA005 for Model TCHC2550HECMRAH100\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA005\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier TCHC2550HECMRAH100\u003c\/strong\u003e heat pump system. The defrost control board monitors time, temperature, and system parameters to initiate and terminate defrost cycles automatically, preventing ice accumulation on the outdoor evaporator coil during heating operation. When this board fails, symptoms typically include the outdoor unit icing over completely, the system failing to enter defrost mode, erratic short-cycling, or a full system lockout with no heating output — all signs that the defrost logic circuitry is no longer functioning correctly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA005 | Cross-references: CEPL130856-01-R, CEBD430856-06-RA | Factory Authorized Carrier replacement part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board with factory-programmed defrost timing algorithms and termination logic. Aftermarket boards often use generic timing profiles that do not match the original system efficiency ratings, potentially voiding equipment certifications and causing premature compressor wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: Phillips and flat-head screwdrivers, needle-nose pliers, smartphone or camera to photograph all wiring harness positions prior to removal. The board mounts inside the outdoor unit control compartment; transfer wiring connections one at a time to avoid miswiring. Verify thermostat and defrost sensor connections are fully seated after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct drop-in replacement for the \u003cstrong\u003eCarrier TCHC2550HECMRAH100\u003c\/strong\u003e heat pump. Always verify the OEM part number on your existing board's label before ordering — serial number ranges may affect fitment on some production runs. Our team is available to confirm compatibility before you purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640276013427,"sku":"CARRIE-TCHC2550HECMRAH100-CONTROL_BOARD-HK32EA005","price":350.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640276046195,"sku":"CARRIE-TCHC2550HECMRAH100-CONTROL_BOARD-HK32EA005-GEN","price":308.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA005.jpg?v=1775026840"},{"product_id":"carrier-ph4zna042000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4ZNA042000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Heat Pump Model PH4ZNA042000AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4ZNA042000AA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle that prevents ice buildup on the outdoor coil during heating season. When this board fails, you'll typically notice the outdoor unit completely encased in ice, the system failing to defrost and reverting to lockout, or the heat pump running continuously in heating mode without ever entering a defrost cycle — all of which rapidly degrade system efficiency and can lead to compressor damage if left unaddressed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part# HK32EA007 | 24V control voltage | 1-phase | Compatible cross-references: CEPL130524-21, CEBD430524-24A, ICP#1177927 | Direct factory replacement — no field modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board with factory-calibrated defrost timing and termination logic. Aftermarket boards often use approximated timing intervals that can result in under- or over-defrosting, reducing efficiency and shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V low-voltage control wiring and one or more defrost sensor leads. Tools needed: 1\/4\" nut driver, needle-nose pliers, phone camera to photograph all wiring before disconnection. Power down the unit at both the breaker and disconnect before servicing. A licensed HVAC technician is recommended for this repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse — your heat pump back on track fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier PH4ZNA042000AA\u003c\/strong\u003e heat pump systems. Verify your existing board's part number on the board label before ordering. Cross-references include CEPL130524-21 and CEBD430524-24A. Questions about fitment? Our HVAC parts specialists confirm compatibility before every order — just ask.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641152754035,"sku":"CARRIE-PH4ZNA042000AA-CONTROL_BOARD-HK32EA007","price":218.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641152786803,"sku":"CARRIE-PH4ZNA042000AA-CONTROL_BOARD-HK32EA007-GEN","price":192.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_1b1e78de-894b-4180-b5d2-cd9de1ec313b.jpg?v=1775027040"},{"product_id":"carrier-ph4zna036000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH4ZNA036000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4ZNA036000AA\u003c\/h1\u003e\u003cp\u003eThis is the factory-original OEM defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4ZNA036000AA\u003c\/strong\u003e heat pump. The defrost control board governs the entire defrost cycle — it monitors outdoor coil temperature and time intervals, then energizes the reversing valve and shuts down the outdoor fan to melt frost and ice accumulation off the evaporator coil. When this board fails, you'll typically see the outdoor unit freezing solid, the system locking out on a fault, or the heat pump running in cooling mode when heat is called — all classic signs of a defrost cycle that never initiates or never terminates properly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA007 | Also cross-references 1177927 and 1173636 | Genuine Carrier OEM — not an aftermarket substitute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards use factory-matched firmware and relay ratings, ensuring precise defrost timing and full compatibility with Carrier's diagnostic fault code system. Aftermarket boards often omit LED fault indicators and use lower-rated relays that fail prematurely under heating season load cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting low-voltage control wiring harnesses and securing the board to the chassis. Tools needed: 1\/4\" nut driver, Phillips screwdriver, needle-nose pliers, smartphone camera to photo wiring before removal. Discharge any capacitors in the unit before reaching into the control compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty from date of purchase. Ships same business day from our warehouse when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4ZNA036000AA\u003c\/strong\u003e heat pump (3-ton, R-410A). Also replaces HK32EA001 on compatible Bryant and Payne heat pump platforms sharing the same control architecture. Always verify your existing board's part number on the board label before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — contact us with your full model and serial number.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641156391283,"sku":"CARRIE-PH4ZNA036000AA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641156424051,"sku":"CARRIE-PH4ZNA036000AA-CONTROL_BOARD-HK32EA007-GEN","price":272.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_17c9374a-c13c-4351-a533-65064418aa6d.jpg?v=1775027147"},{"product_id":"carrier-ph4zna030000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4ZNA030000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Heat Pump Model PH4ZNA030000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4ZNA030000AA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle — monitoring outdoor coil temperature and run time, then initiating a timed reverse-cycle defrost to clear ice buildup from the evaporator coil. When this board fails, you'll typically see one of two symptoms: the heat pump runs continuously in defrost mode and never returns to heating, or it never initiates defrost at all, causing the outdoor coil to ice over completely and starve the system of airflow and capacity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number \u0026amp; Specs:\u003c\/strong\u003e OEM Part # HK32EA007 | Carrier genuine replacement | Algorithmic defrost cycle control | Compatible board revisions: CEBD430524-22A \/ CEBD430524-23A \/ CEBD430524-24A | Weight: 0.31 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM defrost boards use factory-matched firmware and timing logic for your specific heat pump model. Aftermarket boards often use generic defrost intervals that can cause short-cycling, premature compressor wear, or failed defrost initiation — leading to repeat service calls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before servicing. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone\/camera for wiring documentation. Photograph all connector positions before removing the old board. Lock out power and verify zero voltage with a multimeter before touching terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier PH4ZNA030000AA\u003c\/strong\u003e heat pump. Also cross-references with select Carrier, Bryant, and Payne split-system heat pump platforms sharing the HK32EA007 board specification — verify your model data plate before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641160323443,"sku":"CARRIE-PH4ZNA030000AA-CONTROL_BOARD-HK32EA007","price":275.99,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641160356211,"sku":"CARRIE-PH4ZNA030000AA-CONTROL_BOARD-HK32EA007-GEN","price":242.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_a25ff05d-c98c-4c01-930d-75eb6d434f5a.jpg?v=1775027037"},{"product_id":"carrier-ph4zna024000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4ZNA024000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4ZNA024000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4ZNA024000AA\u003c\/strong\u003e heat pump. The defrost control board governs the timing and execution of the defrost cycle — it monitors outdoor coil temperature and ambient conditions, then triggers a temporary reversal of the refrigerant circuit to melt accumulated frost from the outdoor coil. When this board fails, the outdoor unit will ice over completely, heat output drops sharply, and in severe cases the system trips on a high-pressure lockout. Common symptoms include a coil that never defrosts, a unit stuck in defrost mode indefinitely, or a heat pump that runs continuously without reaching setpoint in cold weather.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA007 | Cross-references: 1177927, 1173636 | Genuine OEM Carrier replacement — not an aftermarket substitute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards are programmed with Carrier's exact defrost timing algorithms and terminal configurations. Aftermarket boards often use generic timing intervals that can cause under-defrost (ice buildup) or over-defrost (efficiency loss), shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires safely disconnecting 240V power at the disconnect and breaker before beginning. Tools needed: Phillips and flat-head screwdrivers, needle-nose pliers, phone or camera to photograph wiring before removal. Match all terminal connections carefully; incorrect wiring can damage the new board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty from date of purchase. Orders placed before 3 PM local time ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct factory replacement for the \u003cstrong\u003eCarrier PH4ZNA024000AA\u003c\/strong\u003e heat pump. Also cross-references part numbers 1177927 and 1173636 for Bryant and Payne badge-equivalent models. Always verify your existing board's part number against the unit data plate before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before every order — contact us before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641163993459,"sku":"CARRIE-PH4ZNA024000AA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641164026227,"sku":"CARRIE-PH4ZNA024000AA-CONTROL_BOARD-HK32EA007-GEN","price":272.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_3d5255e3-f9ed-4cea-a3e0-c8dc4b7b3b71.jpg?v=1775027035"},{"product_id":"carrier-ph4rng060000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4RNG060000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG060000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4RNG060000BBAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and initiates the defrost cycle to clear frost and ice buildup from the evaporator coil. When this board fails, your heat pump may remain locked in a frost-over state, lose heating efficiency dramatically, or trigger fault codes related to defrost timing — leaving your home without reliable heat during cold weather.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part number HK32EA001 | Replaces cross-references CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Adjustable defrost timing intervals | 24V control circuit | Genuine Carrier Factory Authorized Part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards are manufactured to exact Carrier tolerances with original connectors and certified timing circuits. Generic aftermarket boards often use ±10% tolerance components that can mistime defrost cycles, accelerating compressor and coil wear over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: ¼\" nut driver, flat-head screwdriver, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Verify defrost heater and defrost thermostat are functional before replacing this board to confirm root cause.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for the \u003cstrong\u003eCarrier PH4RNG060000BBAA\u003c\/strong\u003e heat pump. Also fits select Carrier, Bryant, and Payne heat pump models using the HK32EA001 defrost board. Always verify your unit's model and data plate before ordering. Our fitment team is available to confirm compatibility before you buy — ships same day when ordered before 3 PM.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641167761779,"sku":"CARRIE-PH4RNG060000BBAA-CONTROL_BOARD-HK32EA001","price":150.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641167794547,"sku":"CARRIE-PH4RNG060000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":132.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_0f830c08-1a9c-4fd4-935e-d7b06e34dd32.jpg?v=1775026623"},{"product_id":"carrier-ph4rng060000baaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4RNG060000BAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG060000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4RNG060000BAAA\u003c\/strong\u003e heat pump. The defrost control board monitors operating time and outdoor coil temperature to determine when to initiate a defrost cycle. When this board fails, the outdoor coil can ice over completely, causing the unit to lose heating capacity, trip high-pressure safeties, or run continuously without ever entering defrost mode. Replacing it with the correct OEM board restores precise defrost timing and protects the compressor from sustained refrigerant slugging.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA001 | Also references CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier Replacement Components Division part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board — not an aftermarket substitute. OEM boards maintain factory-calibrated defrost intervals (30\/60\/90 min selectable), correct relay switching logic, and exact connector pinout. Generic boards often use wider-tolerance timing circuits that can cause under- or over-defrosting, accelerating coil damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before opening the control panel. Photograph all wiring harness connections before removal. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, a phone camera. Verify defrost time jumper\/dip switch setting matches your application after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier PH4RNG060000BAAA\u003c\/strong\u003e heat pump. Also compatible with select Carrier, Bryant, and Payne heat pump models — confirm your unit's part number against HK32EA001 on the data plate or wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641172906355,"sku":"CARRIE-PH4RNG060000BAAA-CONTROL_BOARD-HK32EA001","price":193.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641172939123,"sku":"CARRIE-PH4RNG060000BAAA-CONTROL_BOARD-HK32EA001-GEN","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_f2ce0465-a090-4585-b80d-099005ccbfd9.jpg?v=1775026620"},{"product_id":"carrier-ph4rng048000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4RNG048000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG048000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified defrost control board for the \u003cstrong\u003eCarrier PH4RNG048000BBAA\u003c\/strong\u003e heat pump. The defrost control board manages the heat pump's defrost cycle — monitoring outdoor coil conditions, timing defrost intervals, and commanding the reversing valve and auxiliary heat to restore efficient operation when ice accumulates on the outdoor coil. When this board fails, you'll typically experience continuous ice buildup on the outdoor unit, the system failing to enter or exit defrost mode, short-cycling, or a full system lockout with no heating output.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part # HK32EA001 | Also cross-references CEPL130524-01, CEBD430524-06A | 24V control voltage | 5A | Single-phase | Board dimensions approx. 6\" × 4\" | Factory Authorized Parts (FAP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part, manufactured to exact tolerance and firmware specifications. Generic aftermarket boards often lack proper defrost timing calibration, risking compressor damage from prolonged icing or erratic defrost cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker and wait for capacitors to discharge before opening the control panel. Photograph all wiring harness connections before removal. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, and a multimeter to verify 24V control power. Swap harness connectors one at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct drop-in replacement for \u003cstrong\u003eCarrier PH4RNG048000BBAA\u003c\/strong\u003e heat pump units. Verify the existing board's part number (HK32EA001 or cross-reference CEPL130524-01) against your unit's wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before your order ships — call or chat today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641177067891,"sku":"CARRIE-PH4RNG048000BBAA-CONTROL_BOARD-HK32EA001","price":261.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641177100659,"sku":"CARRIE-PH4RNG048000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":229.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_d5134bfb-c6d3-4fb6-b729-890de431d6ef.jpg?v=1775026800"},{"product_id":"carrier-ph4rng048000baaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4RNG048000BAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG048000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified defrost control board for the \u003cstrong\u003eCarrier PH4RNG048000BAAA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperatures and initiating timed or demand-triggered defrost sequences to prevent ice buildup on the outdoor unit. When this board fails, common symptoms include the outdoor coil freezing solid, the system locking out on fault codes, erratic short-cycling, or the unit running continuously in defrost mode without recovery. Replacing this board with the correct OEM part restores precise factory defrost timing and sensor logic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number: HK32EA001 | Factory defrost control board | Designed for Carrier heat pump applications | Drop-in plug-and-play wiring harness connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board is manufactured to Carrier's exact firmware and timing specifications. Aftermarket boards frequently use approximated defrost logic that can cause premature compressor failure due to incomplete or over-extended defrost cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V and line-voltage wiring. Always de-energize the unit at the breaker and discharge any capacitors before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone or camera to photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model PH4RNG048000BAAA\u003c\/strong\u003e. Always cross-reference the part number on your existing board's label before ordering to confirm fitment. Have questions about compatibility? Our HVAC parts specialists verify fitment before you order — reach out via chat or phone.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641180770675,"sku":"CARRIE-PH4RNG048000BAAA-CONTROL_BOARD-HK32EA001","price":181.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641180803443,"sku":"CARRIE-PH4RNG048000BAAA-CONTROL_BOARD-HK32EA001-GEN","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_83ad18fe-03bf-42cc-af74-c27dc0442580.jpg?v=1775026797"},{"product_id":"carrier-ph4rng042000baaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4RNG042000BAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG042000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4RNG042000BAAA\u003c\/strong\u003e heat pump split system. The defrost control board is the nerve center of your heat pump's defrost cycle — it monitors outdoor coil temperature and run time, then initiates a timed defrost sequence to melt accumulated frost and ice from the outdoor coil. When this board fails, the outdoor unit becomes encased in ice, heat output drops dramatically, and in severe cases the compressor can be damaged from refrigerant flood-back. Common failure symptoms include a permanently frosted outdoor coil, the system failing to switch the reversing valve between heating and cooling modes, or the unit running but delivering little to no heat on cold days.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Also references CEPL130524-01, CEBD430524-06A | Factory Authorized Carrier Replacement Components Division\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 24V control voltage | 5A rated | 1-phase | Compatible board type: Defrost Timer\/Control | Dimensions approx. 6\" × 4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier board — factory-programmed defrost intervals and termination logic match the exact specifications of your PH4RNG042000BAAA unit. Aftermarket boards often use generic defrost timing that can over-defrost (wasting energy) or under-defrost (allowing ice buildup), shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V low-voltage wiring harnesses and outdoor thermostat\/sensor leads. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone camera to photograph wiring before removal. Always disconnect power at the disconnect box before servicing. Label all wires prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Verified fit for Carrier model \u003cstrong\u003ePH4RNG042000BAAA\u003c\/strong\u003e heat pump split-system condensers. Cross-references include board numbers CEPL130524-01 and CEBD430524-06A. Always confirm your existing board's part number against HK32EA001 before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us and we'll confirm. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641188864371,"sku":"CARRIE-PH4RNG042000BAAA-CONTROL_BOARD-HK32EA001","price":235.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641188897139,"sku":"CARRIE-PH4RNG042000BAAA-CONTROL_BOARD-HK32EA001-GEN","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_fd44aa6f-27f0-4b61-9311-9bc4478596fa.jpg?v=1775026618"},{"product_id":"carrier-ph4rng036000baaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4RNG036000BAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG036000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement defrost control board for the \u003cstrong\u003eCarrier PH4RNG036000BAAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and governs when the unit enters and exits its defrost cycle — a critical function in heat pump operation. When the board fails, you'll typically see the outdoor coil ice over completely, the system stuck in defrost mode, or a total loss of heating capacity as the unit cannot recover from frost buildup. Cross-reference part numbers include \u003cstrong\u003eCEPL130524-01\u003c\/strong\u003e, \u003cstrong\u003eCEBD430524-06A\u003c\/strong\u003e, \u003cstrong\u003e1173636\u003c\/strong\u003e, and \u003cstrong\u003e1177927\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA001 | OEM Carrier Factory Authorized Parts | Also supersedes HK32EA007 in most applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine OEM boards are factory-calibrated for precise defrost timing intervals (30\/60\/90 min). Generic aftermarket boards frequently ship with incorrect timing tolerances, causing short-cycling, premature compressor wear, and voided equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the disconnect box and verify zero voltage with a multimeter before touching the board. Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter, camera\/phone to document wiring positions. Note defrost time selection jumper position before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Verified in-stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the factory-specified defrost control board for the \u003cstrong\u003eCarrier PH4RNG036000BAAA\u003c\/strong\u003e 3-ton heat pump. Also fits select Bryant and Payne heat pump models using the HK32EA001 board. Always verify your existing board's part number on the label before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641195090291,"sku":"CARRIE-PH4RNG036000BAAA-CONTROL_BOARD-HK32EA001","price":241.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641195123059,"sku":"CARRIE-PH4RNG036000BAAA-CONTROL_BOARD-HK32EA001-GEN","price":212.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_6ac8162d-d7de-4a4e-8056-a81cff524ecb.jpg?v=1775026615"},{"product_id":"carrier-ph4rng024000baaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4RNG024000BAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG024000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4RNG024000BAAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and initiates timed defrost cycles to prevent ice buildup on the evaporator coil. When this board fails, the system will typically remain locked in a continuous frost or ice accumulation state, causing severely reduced heating output, frozen coils, or a unit that runs but cannot transfer heat effectively. In some cases, a failed board will also prevent the reversing valve from switching properly between heating and cooling modes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Also cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier Replacement Components Division part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine OEM board is manufactured to exact Carrier factory tolerances. Generic aftermarket boards frequently use off-spec relays and timing components that misfire defrost cycles, leading to repeat coil icing or compressor overload — always choose OEM for defrost control reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the disconnect box before servicing. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone\/camera (photograph all wiring before disconnecting). The board mounts in the outdoor unit control box. Note defrost timing jumper settings before removing the old board and replicate on the new one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4RNG024000BAAA\u003c\/strong\u003e heat pump. This board is also used across select Carrier, Bryant, and Payne heat pump platforms sharing the same defrost control architecture. Always verify your existing board's part number against HK32EA001 before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — call or chat today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641206067571,"sku":"CARRIE-PH4RNG024000BAAA-CONTROL_BOARD-HK32EA001","price":162.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641206100339,"sku":"CARRIE-PH4RNG024000BAAA-CONTROL_BOARD-HK32EA001-GEN","price":143.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_3c440f45-5ffa-4907-9a7e-2dd80b570ae7.jpg?v=1775026610"},{"product_id":"carrier-ph4rng018000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4RNG018000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG018000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4RNG018000BBAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature and run time, then initiates and terminates the defrost cycle to prevent frost and ice buildup on the outdoor coil. When this board fails, the heat pump may run continuously in defrost mode, never enter defrost at all, or ice over completely — resulting in severely reduced heating efficiency or a full system lockout.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory-authorized Carrier replacement part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM board manufactured to exact Carrier factory specifications. Generic aftermarket boards often use off-tolerance timing components, leading to premature cycling failures or defrost timing errors that accelerate compressor wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before opening the control panel. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, multimeter. Photograph all wiring harness connections before disconnecting. Verify defrost time-selection jumper setting matches your system's original configuration before powering up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePH4RNG018000BBAA\u003c\/strong\u003e heat pump. Also compatible with select Carrier, Bryant, and Payne heat pump models using the HK32EA001 defrost board — verify your unit's data plate and wiring diagram before ordering. Our fitment team is available to confirm compatibility before you buy. Order today for same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641208951155,"sku":"CARRIE-PH4RNG018000BBAA-CONTROL_BOARD-HK32EA001","price":224.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641209016691,"sku":"CARRIE-PH4RNG018000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":197.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_d31c326b-9553-4050-bf87-1c7cd6fb59f1.jpg?v=1775026607"},{"product_id":"carrier-ph4rng018000baaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4RNG018000BAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4RNG018000BAAA\u003c\/h1\u003e\u003cp\u003eThis OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH4RNG018000BAAA\u003c\/strong\u003e heat pump system. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperatures and initiating timed defrost sequences to prevent ice buildup on the outdoor unit. When this board fails, common symptoms include the outdoor coil freezing solid, the unit failing to enter or exit defrost mode, erratic short-cycling, system lockout faults, or a complete loss of heating capacity in cold weather conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HK32EA001 | Factory-matched defrost timing and temperature logic | Direct plug-and-play connector replacement | Compatible with Carrier PH4RNG018000BAAA heat pump platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier board — not an aftermarket substitute. OEM boards preserve factory-calibrated defrost timing intervals and termination logic. Generic boards frequently use off-spec components that cause premature failure or incorrect defrost behavior, risking compressor damage from sustained ice loading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring, line-voltage connections, and multiple harness plugs. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and camera\/phone to photograph all wiring before disconnection. Always disconnect power at the breaker and verify zero voltage before handling. If unfamiliar with heat pump control wiring, consult a licensed HVAC technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against manufacturing defects. Ships same business day from our NationalHVACParts.com warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for Carrier model \u003cstrong\u003ePH4RNG018000BAAA\u003c\/strong\u003e. Always cross-reference your unit's data plate and existing board part number against HK32EA001 before ordering. Our parts team is available to verify fitment — contact us before you buy if you have any questions. \u003cstrong\u003eOrder now and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641213047155,"sku":"CARRIE-PH4RNG018000BAAA-CONTROL_BOARD-HK32EA001","price":193.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641213079923,"sku":"CARRIE-PH4RNG018000BAAA-CONTROL_BOARD-HK32EA001-GEN","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_62d6caab-5db5-450d-b6c0-cd9390d25b88.jpg?v=1775026795"},{"product_id":"carrier-ph4gpab36000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH4GPAB36000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GPAB36000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board for the \u003cstrong\u003eCarrier PH4GPAB36000AA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle, periodically reversing refrigerant flow to melt frost and ice buildup off the outdoor coil. When this board fails, you'll typically see the outdoor unit frozen solid, the system locked in cooling mode during heating season, or the heat pump running continuously without ever entering a defrost cycle — all of which rapidly degrade efficiency and can lead to compressor damage if left unaddressed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HK32EA007 | Factory-direct replacement board | Compatible cross-references: 1173636, 1177927 | Fits Carrier, Bryant, and Payne heat pump platforms sharing this board design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HK32EA007 is factory-calibrated to the exact defrost timing intervals and temperature thresholds specified for the PH4GPAB36000AA. Aftermarket boards may use approximate defrost timing logic, leading to under-defrost (ice buildup) or over-defrost (efficiency loss and comfort complaints).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V low-voltage control wiring and line-voltage connections. Always shut off power at the disconnect and breaker before servicing. Photograph all wiring harness connections before removal. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter. Recommend verifying defrost sensor continuity before replacement to confirm the board is the root cause.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the factory-specified replacement for Carrier model \u003cstrong\u003ePH4GPAB36000AA\u003c\/strong\u003e heat pump condensers. Cross-references OEM catalog numbers 1173636 and 1177927. Verify your existing board's part number against your unit's data plate before ordering — our fitment team is available to confirm compatibility prior to purchase. Order by 5 PM local time for same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641219109235,"sku":"CARRIE-PH4GPAB36000AA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641219142003,"sku":"CARRIE-PH4GPAB36000AA-CONTROL_BOARD-HK32EA007-GEN","price":272.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_f46375c2-f29b-41ca-8f29-b5c79d8ae330.jpg?v=1775027144"},{"product_id":"carrier-ph4gpaa60000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 — PH4GPAA60000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GPAA60000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA008\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4GPAA60000AA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature sensors and automatically switches the system between heating and defrost modes to prevent frost and ice buildup on the outdoor coil. When this board fails, common symptoms include the outdoor coil freezing solid, the system staying locked in defrost mode, erratic defrost cycling, or no defrost activity at all — all of which severely degrade heating efficiency and can lead to compressor damage if left unresolved.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Genuine OEM part HK32EA008 | Replaces HK32EA003 | Selectable defrost intervals: 30, 60, 90, and 120 minutes | Compatible with Carrier, Bryant, and Payne heat pump platforms | Includes speedup jumper for field testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board is manufactured by Carrier to exact factory tolerances, ensuring full compatibility with the PH4GPAA60000AA's sensor inputs and control sequencing. Aftermarket boards may not support Quiet Shift Technology or the full range of adjustable timing intervals, risking noisy transitions and premature wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before starting. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone\/camera to photograph wiring before disconnection. Board mounts to the outdoor unit control panel; transfer wiring connector by connector. Verify defrost operation with the speedup jumper before closing the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4GPAA60000AA\u003c\/strong\u003e heat pump. Also cross-references to Bryant and Payne heat pump models sharing the HK32EA003 \/ HK32EA008 board specification. Always confirm your existing board's part number against your unit's wiring diagram before ordering. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641223467379,"sku":"CARRIE-PH4GPAA60000AA-CONTROL_BOARD-HK32EA008","price":292.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641223500147,"sku":"CARRIE-PH4GPAA60000AA-CONTROL_BOARD-HK32EA008-GEN","price":257.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_70499647-f872-4690-9965-3a7f004c047c.jpg?v=1775027174"},{"product_id":"carrier-ph4gpaa42000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA42000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GPAA42000AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board for the \u003cstrong\u003eCarrier PH4GPAA42000AA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle — monitoring outdoor coil temperature and run time to periodically reverse the refrigerant flow and melt accumulated ice. When this board fails, the outdoor unit coil will freeze over solid, heating capacity drops dramatically, and the system may lock out entirely. Replacing it with the correct OEM board restores factory-calibrated defrost timing and protects the compressor from long-term damage caused by sustained ice buildup.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA008 | Replaces superseded part HK32EA003 | Factory-direct Carrier replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM board uses factory-programmed defrost timing algorithms matched to the \u003cstrong\u003ePH4GPAA42000AA\u003c\/strong\u003e refrigerant circuit. Aftermarket boards may use generic timer intervals that leave coils under- or over-defrosted, reducing efficiency and compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires isolating 240V power at the disconnect before accessing the control panel. Label all low-voltage wiring connections (typically R, C, Y, W, O\/B, and defrost thermostat leads) before removal. Tools needed: insulated screwdrivers, needle-nose pliers, and a multimeter to verify 24V control circuit continuity post-install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4GPAA42000AA\u003c\/strong\u003e packaged heat pump. This board also replaces the earlier HK32EA003 per Carrier's supersession. Always verify your existing board's part number on the board label before ordering. Our fitment team is available to confirm compatibility — contact us before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641225761139,"sku":"CARRIE-PH4GPAA42000AA-CONTROL_BOARD-HK32EA008","price":207.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641225793907,"sku":"CARRIE-PH4GPAA42000AA-CONTROL_BOARD-HK32EA008-GEN","price":182.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_eb1df18b-d53b-4c8a-95eb-07f2f9fd4885.jpg?v=1775027168"},{"product_id":"carrier-ph4gpaa36000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA36000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GPAA36000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA008\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4GPAA36000AA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature sensors and governs the transition between heating and defrost modes, preventing frost and ice accumulation on the outdoor coil during cold-weather operation. When this board fails, common symptoms include the outdoor unit icing over completely, the system locking out of heating mode, erratic or non-existent defrost cycles, or the unit failing to recover from a defrost event and resuming normal heating.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part HK32EA008 | Replaces HK32EA003 | Selectable defrost intervals: 30 \/ 60 \/ 90 \/ 120 minutes | Includes speedup jumper for field testing | Optional random start timer to prevent simultaneous multi-unit defrost | 24V control circuit compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier factory-authorized board manufactured to exact OEM specifications. Aftermarket defrost boards may lack Quiet Shift Technology and precise sensor calibration, resulting in noisy defrost transitions, premature coil wear, and shortened system life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V low-voltage wiring harness and outdoor unit power. Tools needed: nut driver set, needle-nose pliers, multimeter, and phone or camera to photograph wiring positions before removal. Verify jumper settings on the new board match your system's defrost interval requirements before reinstalling the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH4GPAA36000AA\u003c\/strong\u003e heat pump and also cross-compatible with select Bryant and Payne heat pump models sharing the HK32EA003 \/ HK32EA008 board specification. Always verify your unit's existing board part number against the data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy for peace of mind.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641226252659,"sku":"CARRIE-PH4GPAA36000AA-CONTROL_BOARD-HK32EA008","price":287.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641226285427,"sku":"CARRIE-PH4GPAA36000AA-CONTROL_BOARD-HK32EA008-GEN","price":252.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_0531b076-7d4c-42a3-a889-f0eb1903bcfe.jpg?v=1775027166"},{"product_id":"carrier-ph4gpaa30000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA30000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GPAA30000AA\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HK32EA008\u003c\/strong\u003e is the genuine OEM defrost control board factory-specified for the \u003cstrong\u003eCarrier PH4GPAA30000AA\u003c\/strong\u003e heat pump system. This board is the brain behind your system's defrost sequence — it continuously monitors outdoor coil temperature sensors and commands the unit to switch between heating and defrost modes to prevent performance-robbing frost and ice accumulation on the outdoor coil. When this board fails, you may experience persistent ice buildup on the outdoor unit, the system locking out on a heating call, or erratic short-cycling during cold weather — all classic signs that the defrost board can no longer complete its timed cycle correctly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 24V control circuit | Selectable defrost intervals: 30, 60, 90, and 120 minutes | Compatible cross-reference numbers: CEBD430433-10A, CEPL130433-01, CES0130076-00, replaces HK32EA003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board manufactured to exact factory tolerances — not an aftermarket clone. OEM boards ensure precise sensor thresholds, timing sequences, and relay ratings that generic boards frequently miss, protecting your compressor and reversing valve from premature wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V low-voltage and line-voltage wiring harnesses. Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter, phone camera for wiring documentation. Always de-energize the unit at both the disconnect and breaker before touching the board. Label all wires before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePH4GPAA30000AA\u003c\/strong\u003e heat pump systems. Cross-references: HK32EA003, CEBD430433-10A, CEPL130433-01, CES0130076-00. Verify your existing board's part number against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any doubts. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641227104627,"sku":"CARRIE-PH4GPAA30000AA-CONTROL_BOARD-HK32EA008","price":302.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641227137395,"sku":"CARRIE-PH4GPAA30000AA-CONTROL_BOARD-HK32EA008-GEN","price":266.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_21aa6b06-1ecd-4ca8-9297-f563b5608d25.jpg?v=1775027163"},{"product_id":"carrier-ph4gnab60000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4GNAB60000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GNAB60000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4GNAB60000AA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil conditions and initiating defrost sequences to prevent ice buildup on the evaporator coil. When this board fails, common symptoms include continuous icing on the outdoor unit, failure to enter or exit defrost mode, erratic heat pump operation, or complete system lockout. Replacing it with the correct OEM board restores factory-programmed defrost timing and termination logic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HK32EA007 | Cross-references: CEPL130524-21, CEBD430524-24A, 1177927 | Factory-matched defrost timing intervals (30\/60\/90 min selectable) | 24V control circuit compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier OEM board preserves factory defrost logic, published system efficiency ratings, and certifications. Aftermarket boards may use ±tolerance components that cause premature re-icing or missed defrost cycles, accelerating compressor wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires shutting down and locking out the heat pump before board replacement. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone\/camera to photograph all wiring connections before disconnecting. Installation by a licensed HVAC professional is strongly recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In stock — ships same business day when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct drop-in replacement for the \u003cstrong\u003eCarrier PH4GNAB60000AA\u003c\/strong\u003e heat pump. Also cross-references OEM part numbers HK32EA001, CEPL130524-21, CEBD430524-24A, CEBD430524-23A, CEBD430524-22A, and 1177927. Always verify your unit's data plate and existing board markings before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy for peace of mind and same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641228022131,"sku":"CARRIE-PH4GNAB60000AA-CONTROL_BOARD-HK32EA007","price":307.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641228054899,"sku":"CARRIE-PH4GNAB60000AA-CONTROL_BOARD-HK32EA007-GEN","price":270.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_bc62ffa2-ade1-46d6-8e37-2457c42ee827.jpg?v=1775027032"},{"product_id":"carrier-ph4gnab48000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH4GNAB48000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GNAB48000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4GNAB48000AA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature and initiates timed defrost cycles to remove ice and frost buildup from the evaporator coil. When this board fails, you'll typically experience a heat pump that stays locked in cooling mode during cold weather, a system that never initiates a defrost cycle, or a unit that short-cycles with an associated fault lockout. Replacing this board with a genuine OEM part restores factory-precise defrost timing and temperature logic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA007 | Also cross-references: 1177927, 1173636 | OEM Carrier \/ Bryant \/ Payne heat pump defrost board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine OEM boards ship with factory-programmed defrost timing intervals and original-spec solid-state components. Aftermarket boards may use looser timing tolerances, leading to premature coil icing or overly frequent defrost cycles that reduce system efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires safe lockout\/tagout of power before accessing the control panel. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone\/camera to document wiring harness positions before removal. Label all connectors before disconnecting. Follow all Carrier wiring diagrams in the unit's service manual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PH4GNAB48000AA\u003c\/strong\u003e packaged heat pump unit. Cross-compatible with select Carrier, Bryant, and Payne heat pump models that specify the HK32EA007 defrost control board — always verify against your unit's data plate and wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment. \u003cstrong\u003eOrder today and receive same-day shipping on in-stock inventory.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641228284275,"sku":"CARRIE-PH4GNAB48000AA-CONTROL_BOARD-HK32EA007","price":315.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641228317043,"sku":"CARRIE-PH4GNAB48000AA-CONTROL_BOARD-HK32EA007-GEN","price":277.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_5edf4832-dc6e-41a3-a96e-ba68d38187f6.jpg?v=1775027142"},{"product_id":"carrier-ph4gnab36000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4GNAB36000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GNAB36000AA\u003c\/h1\u003e\u003cp\u003eThis is a genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4GNAB36000AA\u003c\/strong\u003e heat pump. The defrost control board governs the timing and initiation of defrost cycles, monitoring outdoor coil conditions and commanding the reversing valve and defrost relay to shed ice buildup from the evaporator coil. When this board fails, the outdoor coil becomes encased in ice, the system loses heating capacity, and in severe cases the heat pump will lock out entirely or run continuously in defrost without recovering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part # HK32EA007 | Also cross-references 1173636 \u0026amp; 1177927 | Designed for Carrier \/ Bryant \/ Payne heat pump split systems | Factory-matched defrost timing and temperature thresholds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board with factory-calibrated defrost intervals. Aftermarket boards may use approximate timing logic that causes premature or delayed defrost, reducing efficiency and accelerating compressor wear over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the disconnect and breaker before servicing. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone or camera to photograph wiring harness connections before removal. Board mounts to the control panel; all connectors are keyed for correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier PH4GNAB36000AA\u003c\/strong\u003e heat pump systems. Cross-references legacy part numbers 1173636 and 1177927. Always confirm your existing board's part number on the board label or unit data plate before ordering. Our fitment team is available to verify compatibility prior to purchase — order with confidence and get back to comfort fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641229136243,"sku":"CARRIE-PH4GNAB36000AA-CONTROL_BOARD-HK32EA007","price":315.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641229169011,"sku":"CARRIE-PH4GNAB36000AA-CONTROL_BOARD-HK32EA007-GEN","price":277.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_f9c84e7d-cdbe-4e3e-b63a-7fe5787874fa.jpg?v=1775027029"},{"product_id":"carrier-ph4gnab30000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4GNAB30000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GNAB30000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4GNAB30000AA\u003c\/strong\u003e heat pump. The defrost control board manages and initiates timed defrost cycles, monitoring outdoor coil temperature and system demand to periodically reverse refrigerant flow and melt ice buildup on the outdoor coil. When this board fails, symptoms typically include the outdoor unit freezing over completely, the system failing to enter a defrost cycle, erratic short-cycling, or the heat pump blowing cool air in heating mode. Replacing the board with a genuine OEM part restores precise defrost timing and protects the compressor and refrigerant circuit from damage caused by ice accumulation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA007 | Also cross-references 1173636 and 1177927 | Factory-matched OEM specification for Carrier, Bryant, and Payne heat pump platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine OEM boards use factory-programmed defrost timing and temperature thresholds. Aftermarket boards may use approximate timing logic, risking over-defrost (efficiency loss) or under-defrost (compressor flood-back and coil ice damage).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V and line-voltage control wiring from the existing board. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone camera (photograph all wiring before removal). Always shut off power at the disconnect before servicing. A multimeter is recommended to verify 24V control signal post-install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse — no waiting on slow distributors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier PH4GNAB30000AA\u003c\/strong\u003e heat pump systems. Also fits select Bryant and Payne heat pump models that share this defrost board specification — verify your unit's data plate part number before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641230119283,"sku":"CARRIE-PH4GNAB30000AA-CONTROL_BOARD-HK32EA007","price":311.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641230152051,"sku":"CARRIE-PH4GNAB30000AA-CONTROL_BOARD-HK32EA007-GEN","price":273.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_620cc89d-74b1-4b2d-abd1-98c40e8c2476.jpg?v=1775027027"},{"product_id":"carrier-ph4gnab24000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH4GNAB24000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GNAB24000AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board for the \u003cstrong\u003eCarrier PH4GNAB24000AA\u003c\/strong\u003e heat pump. The defrost control board governs the entire defrost cycle — it monitors outdoor coil temperature and time intervals, then initiates a timed reverse-cycle defrost to shed ice buildup from the outdoor coil. When this board fails, the most common symptoms include a frozen outdoor unit with no defrost initiation, the system short-cycling on the defrost lockout, or the heat pump running continuously in a failed defrost loop — all of which dramatically reduce heating capacity and efficiency.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part # HK32EA007 | Factory-matched defrost timing and temperature logic | Compatible board revisions: CEBD430524-23A \/ CEPL130524-21 and related variants | Carrier-genuine algorithmic defrost control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards carry factory-calibrated defrost timing tolerances. Aftermarket substitutes often use looser logic thresholds, leading to incomplete defrost cycles, premature compressor lockouts, or coil damage over time. This board is genuine Carrier — not a third-party clone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: ¼\" nut driver, needle-nose pliers, phone\/camera to photograph all wire harness connections before removal. The board mounts in the outdoor unit control compartment; note each connector's keyed position and DIP switch settings before swapping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse — in stock and ready to go.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4GNAB24000AA\u003c\/strong\u003e packaged heat pump. Cross-references with board assembly numbers CEBD430524-23A, CEBD430524-22A, CEBD430524-24A, and CEPL130524-21. Always verify your existing board's part number against HK32EA007 before ordering. Our fitment team is available to confirm compatibility before you buy — reach out before placing your order and we'll verify the match. \u003cstrong\u003eOrder now and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641230250355,"sku":"CARRIE-PH4GNAB24000AA-CONTROL_BOARD-HK32EA007","price":275.99,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641230283123,"sku":"CARRIE-PH4GNAB24000AA-CONTROL_BOARD-HK32EA007-GEN","price":242.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_ef4c0f16-5a4f-4a84-a161-7e1758d1b931.jpg?v=1775027139"},{"product_id":"carrier-ph4geab60000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4GEAB60000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GEAB60000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4GEAB60000AA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle by monitoring outdoor coil temperature and initiating timed defrost sequences to melt accumulated frost and ice. When this board fails, common symptoms include the outdoor coil freezing solid, the system failing to switch out of defrost mode, erratic short-cycling, or a complete loss of heating capacity in cold weather conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HK32EA007 | Also cross-references 1173636 and 1177927 | Factory-matched timing and temperature thresholds | Designed for R-410A heat pump systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board is manufactured to exact Carrier factory specifications, ensuring precise defrost timing intervals and temperature trip points. Aftermarket alternatives frequently use off-spec timing circuits that lead to premature coil icing, compressor stress, and shortened system life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Turn off power at the disconnect and breaker before beginning. Tools needed: ¼\" and 5\/16\" nut drivers, needle-nose pliers, phone camera to photograph all wiring connections. Take a photo of the existing board before removing any wires. Swap terminals one at a time for accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Orders placed before 5 PM EST ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePH4GEAB60000AA\u003c\/strong\u003e packaged heat pump unit. Cross-references legacy board numbers 1173636 and 1177927. Always verify your existing part number on the board or unit data plate prior to ordering. Our team is available to confirm fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641231921523,"sku":"CARRIE-PH4GEAB60000AA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641231954291,"sku":"CARRIE-PH4GEAB60000AA-CONTROL_BOARD-HK32EA007-GEN","price":272.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_e79a3fe1-d1a4-420a-8b71-1e60f9c18a69.jpg?v=1775027024"},{"product_id":"carrier-ph4geab42000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH4GEAB42000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GEAB42000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board for the \u003cstrong\u003eCarrier PH4GEAB42000AA\u003c\/strong\u003e heat pump. The defrost control board manages timed and demand-initiated defrost cycles, commanding the reversing valve and outdoor fan to shed ice accumulation from the outdoor coil. When this board fails, the heat pump may run continuously in defrost, never enter defrost at all, display fault lockout codes, or lose heating capacity due to a fully iced-over coil — all symptoms that point directly to the HK32EA007 as the root cause.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA007 | Also cross-references: 1173636, 1177927 | Genuine Carrier OEM — not an aftermarket substitute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards use factory-calibrated defrost termination logic and timing circuits. Aftermarket boards may use approximated timing intervals, risking coil ice-over or compressor damage from premature or missed defrost cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring and line-voltage connections at the board. Tools needed: 1\/4\" nut driver, needle-nose pliers, phone camera (photograph all wiring before removal). Always disconnect power at the disconnect and breaker before handling. Verify defrost initiation and termination after install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our climate-controlled parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4GEAB42000AA\u003c\/strong\u003e heat pump split system. This board also cross-references OEM numbers 1173636 and 1177927 and is compatible across select Carrier, Bryant, and Payne heat pump platforms sharing the same defrost control architecture. Always verify your existing board's part number against your unit's wiring diagram before ordering. Our parts specialists are available to confirm fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641232085363,"sku":"CARRIE-PH4GEAB42000AA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641232118131,"sku":"CARRIE-PH4GEAB42000AA-CONTROL_BOARD-HK32EA007-GEN","price":272.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_1c3c748e-16d1-48be-8238-e1408fd18029.jpg?v=1775027021"},{"product_id":"carrier-ph4geab36000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH4GEAB36000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GEAB36000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4GEAB36000AA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature and initiates timed defrost cycles to prevent ice buildup on the evaporator coil. When this board fails, symptoms include a coil frozen solid with no defrost cycle initiating, the unit locking out on fault codes, erratic reversing valve behavior, or the system running in heating mode with rapidly declining output — all signs the board is no longer accurately reading or commanding the defrost sequence.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HK32EA007 | Also cross-references 1173636 \u0026amp; 1177927 | Carrier-factory-matched defrost timing logic | Designed for R-410A heat pump split systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM boards ship with factory-calibrated defrost algorithms and connector layouts that match your unit exactly. Aftermarket boards may use generic timing intervals that cause under- or over-defrost, reducing efficiency and shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before opening the control panel. Label or photograph all wiring connections before removal. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, a multimeter to verify 24V control signal. Follow your unit's wiring diagram carefully when reconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Orders placed before 3 PM local time ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct factory replacement for the \u003cstrong\u003eCarrier PH4GEAB36000AA\u003c\/strong\u003e heat pump. Cross-references legacy board numbers 1173636 and 1177927. Always confirm the part number printed on your existing board before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641232150899,"sku":"CARRIE-PH4GEAB36000AA–-CONTROL_BOARD-HK32EA007","price":315.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641232183667,"sku":"CARRIE-PH4GEAB36000AA–-CONTROL_BOARD-HK32EA007-GEN","price":277.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_068e4fcf-dc6f-4e0e-870f-11631f13af6a.jpg?v=1775027136"},{"product_id":"carrier-ph4gnaa30000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 for PH4GNAA30000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GNAA30000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA008\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4GNAA30000AA\u003c\/strong\u003e heat pump. The defrost board monitors outdoor coil temperature sensors and orchestrates timed transitions between heating and defrost modes to prevent damaging frost and ice accumulation on the outdoor coil. When this board fails, common symptoms include a coil that remains permanently iced over, a heat pump that never enters a defrost cycle, erratic defrost timing, or a system that locks out on fault codes related to defrost operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part HK32EA008 | Replaces HK32EA003 | Board ID: CEPL130433-02 \/ CEBD430433-09A | Selectable defrost intervals: 30, 60, 90, and 120 minutes | 24V control circuit compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards are manufactured by Carrier to exact factory specifications for guaranteed compatibility and reliability. Generic or third-party boards may lack precise defrost timing calibration, risking coil damage, reduced efficiency, and shortened compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect and lock out power before servicing. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone\/camera for wiring documentation. Label all low-voltage wires before disconnecting. A speedup jumper on this board allows for accelerated defrost testing post-install to confirm proper operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH4GNAA30000AA\u003c\/strong\u003e heat pump. Also cross-references Bryant and Payne models using the HK32EA003 or HK32EA008 board. Always verify your existing board's part number against the data plate inside the unit before ordering. Our fitment specialists are available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641232281971,"sku":"CARRIE-PH4GNAA30000AA-CONTROL_BOARD-HK32EA008","price":292.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641232314739,"sku":"CARRIE-PH4GNAA30000AA-CONTROL_BOARD-HK32EA008-GEN","price":257.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_bb8090ad-b48d-4134-9a7f-310e642ec2a2.jpg?v=1775027161"},{"product_id":"carrier-ph4geaa60000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 for PH4GEAA60000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GEAA60000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA008\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4GEAA60000AA\u003c\/strong\u003e heat pump. The defrost control board is the brain of your outdoor unit's defrost system — it continuously monitors temperature sensors and orchestrates the timed transition between normal heating operation and defrost mode to prevent frost and ice buildup on the outdoor coil. When this board fails, the most common symptoms include the outdoor coil becoming heavily iced over, the heat pump losing heating capacity in cold weather, the system failing to initiate a defrost cycle, or the unit locking out entirely. If your Carrier heat pump is struggling to heat when outdoor temps drop below freezing, this board is the first component to test and replace.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 24V control circuit | Selectable defrost intervals: 30, 60, 90, and 120 minutes | Compatible cross-reference numbers: CEBD430433-10A, CEPL130433-01, CES0130076-00, 1185790\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board manufactured to exact factory tolerances. Generic aftermarket boards may use off-spec timing circuits that cause erratic defrost behavior, premature compressor wear, or repeated lockout faults — OEM ensures plug-and-play reliability with no guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires shutting down system power and discharging any residual voltage before handling the board. Tools needed: ¼\" nut driver, needle-nose pliers, phone\/camera to photograph all wiring connections before removal. Label each wire harness connector before disconnecting. Professional installation recommended if unfamiliar with low-voltage heat pump control wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4GEAA60000AA\u003c\/strong\u003e heat pump. Also cross-references HK32EA003, making it a direct replacement for prior board revisions in the same platform. Always verify your existing board's part number against your unit's data plate before ordering. Our team is available to confirm fitment — order with confidence and get your system back to peak heating performance fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641237524851,"sku":"CARRIE-PH4GEAA60000AA-CONTROL_BOARD-HK32EA008","price":301.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641237557619,"sku":"CARRIE-PH4GEAA60000AA-CONTROL_BOARD-HK32EA008-GEN","price":265.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_dd74c683-bc3c-4a79-a252-624b97b01f08.jpg?v=1775027158"},{"product_id":"carrier-ph4geaa48000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 for PH4GEAA48000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GEAA48000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA008\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4GEAA48000AA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature sensors and automatically switches the system between heating and defrost modes to prevent frost and ice buildup on the outdoor coil. When this board fails, symptoms typically include a heavily iced-over outdoor coil, the system failing to enter defrost mode, loss of heating capacity, or short-cycling in cold weather — all signs that the board is no longer initiating or completing defrost sequences correctly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part number HK32EA008 | Replaces HK32EA003 | Compatible with Carrier, Bryant, and Payne heat pump platforms | Selectable defrost intervals: 30, 60, 90, and 120 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier factory-authorized board manufactured to exact OEM specifications. Aftermarket boards often lack Quiet Shift Technology and adjustable timing sequences, increasing the risk of noisy transitions and premature cycling failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker and confirm voltage is absent before handling. Tools needed: ¼\" nut driver, Phillips screwdriver, needle-nose pliers, multimeter. Photograph all wire connections before removal. Note jumper positions for defrost interval settings and transfer them to the new board exactly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePH4GEAA48000AA\u003c\/strong\u003e heat pump. Also fits select Bryant and Payne models using the HK32EA003 or HK32EA008 board. Always verify your existing board's part number against the unit's wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641237918067,"sku":"CARRIE-PH4GEAA48000AA-CONTROL_BOARD-HK32EA008","price":292.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641237950835,"sku":"CARRIE-PH4GEAA48000AA-CONTROL_BOARD-HK32EA008-GEN","price":257.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_c53fcae1-e1a2-4f19-bb4a-cdf1801d0fa6.jpg?v=1775027155"},{"product_id":"carrier-ph4geaa36000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA008 for PH4GEAA36000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA008 for Model PH4GEAA36000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA008\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH4GEAA36000AA\u003c\/strong\u003e heat pump system. The defrost control board manages the critical defrost cycle by monitoring outdoor coil temperature sensors and automatically switching the system between normal heating mode and defrost mode to prevent frost and ice buildup on the outdoor coil. When this board fails, symptoms typically include a heavily iced outdoor coil, the system running in a continuous defrost loop, a locked-out unit that delivers no heat, or erratic cycling behavior during cold weather operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA008 | Replaces HK32EA003, CEPL130433-01, CEBD430433-08A, CEBD430433-09A | Factory-authorized Carrier replacement part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Features:\u003c\/strong\u003e Selectable defrost intervals of \u003cstrong\u003e30, 60, 90, and 120 minutes\u003c\/strong\u003e | Quiet Shift Technology for reduced noise during defrost transitions | Optional random start timer to stagger defrost cycles | Speedup jumper for fast field testing and diagnostics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before opening the unit. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, camera or phone to photograph wiring before disconnecting. Take note of all jumper settings on the original board before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH4GEAA36000AA\u003c\/strong\u003e heat pump and fits across the broader Carrier, Bryant, and Payne heat pump product families that share this board. Always verify your existing part number against the unit's wiring diagram and data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you purchase — contact us and we'll confirm.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641239753075,"sku":"CARRIE-PH4GEAA36000AA-CONTROL_BOARD-HK32EA008","price":288.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641239785843,"sku":"CARRIE-PH4GEAA36000AA-CONTROL_BOARD-HK32EA008-GEN","price":254.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA008_ee9c852e-2285-49c8-85e1-777c13e9dc71.jpg?v=1775027153"},{"product_id":"carrier-ph4ang060000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4ANG060000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG060000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier PH4ANG060000BBAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and initiates timed defrost cycles to prevent frost and ice accumulation on the evaporator coil. When this board fails, the heat pump will often run continuously in heating mode without ever entering a defrost cycle — resulting in progressive ice buildup on the outdoor unit, sharply reduced efficiency, and eventual compressor damage from refrigerant flood-back. Common symptoms include a heavily iced outdoor coil, weak heating output, and the system never transitioning into defrost mode.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Also cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier Replacement Components Division part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine OEM boards use factory-calibrated timing circuits and original-spec relay components (Potter \u0026amp; Brumfield T9AS2D22-24). Aftermarket boards often use off-spec timing that can under- or over-defrost, stressing the reversing valve and compressor. OEM is the only choice for warranty-covered systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring harness and low-voltage sensor leads. Always power down at the disconnect and confirm with a multimeter before touching terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, phone camera to photograph wiring before removal. Note defrost time selection jumper setting before swapping boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse in original Carrier factory packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PH4ANG060000BBAA\u003c\/strong\u003e packaged heat pump. This board is also used across select Carrier, Bryant, and Payne heat pump platforms — always confirm your unit's data plate part number matches HK32EA001 before ordering. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you buy. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641241391475,"sku":"CARRIE-PH4ANG060000BBAA-CONTROL_BOARD-HK32EA001","price":162.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641241424243,"sku":"CARRIE-PH4ANG060000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":143.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_1c6d4b44-b1f4-469c-9051-bc2f9478c940.jpg?v=1775026605"},{"product_id":"carrier-ph4ang060000baaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4ANG060000BAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG060000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4ANG060000BAAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and initiates timed defrost cycles to prevent frost and ice accumulation on the evaporator. When this board fails, the heat pump loses its ability to enter the defrost cycle, causing progressive ice buildup on the outdoor coil, severely reduced heating capacity, and potential compressor damage from refrigerant flood-back. Common failure symptoms include a heavily iced outdoor unit, a system that runs but won't heat, or a unit that locks out entirely on a cold day.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Also supersedes CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier Replacement Components Division part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board with factory-calibrated defrost timing logic and original-spec relay contacts. Generic boards may use off-tolerance timers that under- or over-defrost, reducing efficiency and shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker and capacitor before handling. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone camera (photograph all wiring before disconnecting). Note defrost time selection jumper setting before removal and replicate on new board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePH4ANG060000BAAA\u003c\/strong\u003e heat pump and other select Carrier, Bryant, and Payne heat pump models that specify part number HK32EA001. Always verify your existing board's part number label before ordering. Our team is available to confirm fitment — contact us before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641241981299,"sku":"CARRIE-PH4ANG060000BAAA-CONTROL_BOARD-HK32EA001","price":162.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641242014067,"sku":"CARRIE-PH4ANG060000BAAA-CONTROL_BOARD-HK32EA001-GEN","price":143.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_de17c99c-55d2-41c5-96a6-db5849037c00.jpg?v=1775026602"},{"product_id":"carrier-ph4ang048000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4ANG048000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG048000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-authorized defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4ANG048000BBAA\u003c\/strong\u003e heat pump. The defrost control board is the electronic brain of your heat pump's defrost system — it monitors run time and outdoor coil conditions, then initiates and terminates timed defrost cycles to prevent ice buildup on the outdoor coil. When this board fails, the heat pump may run continuously in a frozen state, fail to enter defrost mode at all, or lock out on a fault code, leaving you with poor heating performance or no heat during cold weather.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Also cross-references CEPL130524-01, CEBD430524-06A, 1173636, 1177927 — this is the exact factory-specified board for your unit, not an aftermarket approximation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM boards are factory-calibrated with precise defrost timing intervals matched to your system's refrigerant charge and coil geometry. Aftermarket boards often use generic timing sequences (±15–20%) that can cause premature compressor wear, inadequate defrost, or nuisance lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before servicing. Access the control board compartment in the outdoor unit. Photograph all wiring harness connections before removal. Swap connectors one-to-one to the new board and verify defrost timing selection (30\/60\/90 min) matches your prior setting. Tools needed: Phillips screwdriver, 1\/4\" nut driver, multimeter for voltage verification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our NationalHVACParts.com warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for the \u003cstrong\u003eCarrier PH4ANG048000BBAA\u003c\/strong\u003e (4-ton heat pump) and other select Carrier, Bryant, and Payne heat pump models using the HK32EA001 board. Always verify the part number on your existing board's label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — contact us today and get back up and running fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641243554163,"sku":"CARRIE-PH4ANG048000BBAA-CONTROL_BOARD-HK32EA001","price":224.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641243586931,"sku":"CARRIE-PH4ANG048000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":197.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_052a22f7-ec2f-49f5-921b-dbf7c07f0f46.jpg?v=1775026600"},{"product_id":"carrier-ph4ang042000bcaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4ANG042000BCAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG042000BCAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board, part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e, factory-specified for the \u003cstrong\u003eCarrier PH4ANG042000BCAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and initiates timed defrost cycles to prevent ice accumulation on the evaporator coil. When this board fails, the heat pump typically remains stuck in heating or cooling mode with frost building up on the outdoor coil, resulting in severely reduced efficiency, high-pressure lockouts, or complete system shutdown. Cross-reference part numbers: \u003cstrong\u003eCEPL130524-01, CEBD430524-06A, 1173636, 1177927, 662442528544\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction \u0026amp; Specs:\u003c\/strong\u003e Timed defrost control board | Adjustable defrost intervals (30 \/ 60 \/ 90 min) | 24V control circuit | Compatible with R-410A heat pump systems | Replaces CEPL130524-01 and CEBD430524-06A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier Factory Authorized Part meets exact tolerance and timing specifications. Aftermarket boards often use off-spec relay components and imprecise timing circuits, which can cause premature re-icing or erratic defrost cycling — shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Turn off power at the disconnect and breaker before servicing. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, camera\/phone to photograph wiring before disconnecting. Always verify defrost termination sensor and outdoor coil sensor continuity before replacing the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse in a static-proof bag.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePH4ANG042000BCAA\u003c\/strong\u003e and select Carrier, Bryant, and Payne heat pump platforms sharing the HK32EA001 board specification. Verify your existing board's part number on the label before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641244635507,"sku":"CARRIE-PH4ANG042000BCAA-CONTROL_BOARD-HK32EA001","price":241.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641244668275,"sku":"CARRIE-PH4ANG042000BCAA-CONTROL_BOARD-HK32EA001-GEN","price":212.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_5151d371-587b-4725-8866-2ee6fbbb0091.jpg?v=1775026595"},{"product_id":"carrier-ph4ang042000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4ANG042000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG042000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-authorized defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4ANG042000BBAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and initiates the defrost cycle at programmed intervals — typically every 30, 60, or 90 minutes — to melt accumulated frost and restore peak heat transfer efficiency. When this board fails, your heat pump may run in a constant frost-covered state, lose heating capacity, trip high-pressure safeties, or fail to defrost altogether, leaving ice building up on the outdoor coil until the unit shuts down on lockout.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA001 | Cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier OEM replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HK32EA001 board ships with original wiring connectors and is factory-calibrated for exact defrost timing intervals. Generic aftermarket boards often use ±10% tolerance components and may require jumper reconfiguration, risking erratic defrost cycling and compressor damage over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power and verify zero voltage before handling. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone\/camera to photograph all wiring before removal. Note the defrost time selector switch position before swapping boards. Not recommended for unlicensed DIY on systems under warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse — order before 3 PM local time for same-day dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM drop-in replacement for \u003cstrong\u003eCarrier model PH4ANG042000BBAA\u003c\/strong\u003e heat pumps. This board also cross-fits select Bryant and Payne heat pump models sharing the same control board platform. Always verify your existing board's part number against HK32EA001 before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641244963187,"sku":"CARRIE-PH4ANG042000BBAA-CONTROL_BOARD-HK32EA001","price":112.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641244995955,"sku":"CARRIE-PH4ANG042000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_ad3c8edd-a8aa-452f-bf13-a524e7b1c82e.jpg?v=1775026592"},{"product_id":"carrier-ph4ang036000bdaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4ANG036000BDAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG036000BDAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4ANG036000BDAA\u003c\/strong\u003e heat pump. The defrost control board is the brain of your heat pump's defrost cycle — it monitors outdoor coil temperature and elapsed run time, then initiates a timed defrost sequence to melt accumulated ice off the coil. When this board fails, you'll typically see the outdoor unit encased in ice, the system locked out in defrost mode, poor heating performance, or a compressor that short-cycles due to high pressure buildup from a frozen coil.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA001 | Board ID: CEPL130524-01 | 24V control voltage | Compatible with Carrier, Bryant, and Payne heat pump platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier factory-authorized replacement board. OEM boards are pre-programmed with the exact defrost timing intervals and temperature thresholds required by the PH4ANG036000BDAA — aftermarket boards may use approximated logic that causes premature or missed defrost cycles, shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring, outdoor temperature sensor leads, and reversing valve connections. Tools needed: Phillips-head screwdriver, 1\/4\" nut driver, needle-nose pliers, multimeter (to verify 24V supply before install). Always power down the unit at the disconnect and breaker before removing the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier PH4ANG036000BDAA\u003c\/strong\u003e heat pump split system. Verify your existing board's part number or board ID (CEPL130524-01) against your unit's control panel before ordering. Need fitment confirmation? Our HVAC parts specialists are available to verify compatibility before you buy — order with confidence and get back to comfort fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641250730355,"sku":"CARRIE-PH4ANG036000BDAA-CONTROL_BOARD-HK32EA001","price":224.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641250763123,"sku":"CARRIE-PH4ANG036000BDAA-CONTROL_BOARD-HK32EA001-GEN","price":197.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_aba2e05a-5c7f-4f58-8479-012519f422b2.jpg?v=1775026792"},{"product_id":"carrier-ph4ang036000bcaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4ANG036000BCAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG036000BCAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory replacement defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4ANG036000BCAA\u003c\/strong\u003e heat pump split system. The defrost control board manages the automatic defrost cycle, commanding the reversing valve to switch modes and energizing the defrost relay at precise intervals to eliminate frost and ice buildup on the outdoor coil. When this board fails, symptoms include the outdoor unit freezing solid, the system failing to switch from cooling to heating mode, or the unit locking out entirely after a failed defrost sequence. Ignoring a failed defrost board leads to compressor damage and costly refrigerant issues.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Also references: CEPL130524-01, CEBD430524-06A | 24V control circuit | 5A | Single-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier factory-authorized part, manufactured to exact board-level tolerances. Generic or aftermarket defrost boards often use off-spec relays and timing components that result in premature failure or incorrect defrost intervals — risking compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the disconnect box and wait 5 minutes before handling. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone or camera to photograph wiring before removal. Transfer wiring harness connectors one at a time to the new board to avoid miswiring. No soldering required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock — ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for Carrier model \u003cstrong\u003ePH4ANG036000BCAA\u003c\/strong\u003e heat pump condensing units. Cross-references include board numbers CEPL130524-01 and CEBD430524-06A. Always verify your existing board's part number against HK32EA001 before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641254596979,"sku":"CARRIE-PH4ANG036000BCAA-CONTROL_BOARD-HK32EA001","price":235.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641254629747,"sku":"CARRIE-PH4ANG036000BCAA-CONTROL_BOARD-HK32EA001-GEN","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_ecc07700-976b-4e14-9c21-89822dd54401.jpg?v=1775026590"},{"product_id":"carrier-ph4ang036000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4ANG036000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG036000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH4ANG036000BBAA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperature and run time to prevent ice buildup on the heat pump's outdoor unit. When this board fails, common symptoms include the outdoor coil icing over completely, the system failing to enter or exit defrost mode, reduced heating efficiency, or the unit locking out entirely. Replacing the defrost control board with a genuine OEM part restores factory-programmed defrost timing and ensures reliable year-round heat pump operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HK32EA001 | Factory-matched defrost timing and sensor inputs | Designed for Carrier PH4ANG036000BBAA 3-ton heat pump | Includes all mounting hardware connection points per original design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM defrost boards use factory-calibrated algorithms for defrost initiation and termination. Generic boards often use generalized timing that can result in over-frosting, short defrost cycles, or premature compressor wear — costing far more than the savings up front.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, and phone or camera to photograph all wiring connections before removal. Take care to transfer all wire harnesses and terminals exactly as positioned on the original board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for Carrier model \u003cstrong\u003ePH4ANG036000BBAA\u003c\/strong\u003e. Always verify OEM part number HK32EA001 against your unit's data plate and wiring diagram before ordering. Not sure about fitment? Our HVAC parts specialists confirm compatibility before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641259413875,"sku":"CARRIE-PH4ANG036000BBAA-CONTROL_BOARD-HK32EA001","price":193.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641259446643,"sku":"CARRIE-PH4ANG036000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_70feb9a0-5291-4705-a25c-42ec972ceddb.jpg?v=1775026789"},{"product_id":"carrier-ph4ang030000bdaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4ANG030000BDAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG030000BDAA\u003c\/h1\u003e\u003cp\u003eThis OEM defrost control board is the factory-specified replacement for the \u003cstrong\u003eCarrier PH4ANG030000BDAA\u003c\/strong\u003e heat pump. The defrost control board manages the system's automatic defrost cycle, monitoring outdoor coil temperature and run time to prevent ice buildup on the coil. When this board fails, common symptoms include the unit remaining stuck in defrost mode, failing to initiate defrost at all, or losing heat output entirely due to a fully iced-over outdoor coil.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number: HK32EA001 | Carrier-factory matched | Direct drop-in replacement | Compatible with 24V control circuit | Includes defrost timer and reversing valve logic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier board, manufactured to exact factory specifications. Generic or aftermarket boards may use off-tolerance components that compromise defrost timing accuracy, risking coil damage and compressor failure under heavy frost conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting and reconnecting multiple low-voltage control wires. Always photograph the full wiring harness before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Recommend power off at both the thermostat and disconnect before handling. Professional installation strongly advised.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PH4ANG030000BDAA\u003c\/strong\u003e heat pump. Always verify the OEM part number printed on your existing board before ordering — board revisions may exist for different production runs of this model. Our technical team is available to confirm fitment before you purchase. \u003cstrong\u003eOrder today and enjoy same-day shipping on all in-stock control boards.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641269342579,"sku":"CARRIE-PH4ANG030000BDAA-CONTROL_BOARD-HK32EA001","price":193.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641269375347,"sku":"CARRIE-PH4ANG030000BDAA-CONTROL_BOARD-HK32EA001-GEN","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_5e7a2f55-a7e4-4ea4-aeb2-64b00266c7a1.jpg?v=1775026787"},{"product_id":"carrier-ph4ang030000bcaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4ANG030000BCAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG030000BCAA\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HK32EA001 Defrost Control Board\u003c\/strong\u003e is the factory-specified replacement for the \u003cstrong\u003ePH4ANG030000BCAA\u003c\/strong\u003e heat pump. This board receives and interprets signals from outdoor sensors and the thermostat, then commands the reversing valve to switch from cooling to heating mode during the defrost cycle — clearing ice buildup from the outdoor coil. When this board fails, common symptoms include the outdoor unit icing over completely, the heat pump failing to defrost on schedule, short-cycling, or the system getting stuck in one operating mode and never transitioning properly between heating and cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part # HK32EA001 | Also cross-references CEPL130524-01, CEBD430524-06A | 24V control voltage | 5A | 1-Phase | Dimensions approx. 6\" × 4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part engineered to exact factory tolerances. OEM boards preserve full system diagnostics, fault code accuracy, and warranty integrity — generic alternatives risk sensor miscalibration and premature defrost cycle failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off power at the disconnect before opening the control panel. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone or camera for photographing all wiring harness connections before removal. Label each connector carefully; incorrect wiring can damage the new board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier PH4ANG030000BCAA\u003c\/strong\u003e heat pump split systems. Verify part number HK32EA001 on your unit's existing board or data label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641273176435,"sku":"CARRIE-PH4ANG030000BCAA-CONTROL_BOARD-HK32EA001","price":261.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641273209203,"sku":"CARRIE-PH4ANG030000BCAA-CONTROL_BOARD-HK32EA001-GEN","price":230.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_92d4f3d2-77b4-4fae-bf66-7ef0f3abbdcd.jpg?v=1775026784"},{"product_id":"carrier-ph4ang024000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH4ANG024000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG024000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement defrost control board for the \u003cstrong\u003eCarrier PH4ANG024000BBAA\u003c\/strong\u003e heat pump. The defrost control board continuously monitors outdoor coil conditions and initiates the defrost cycle to clear frost and ice accumulation from the evaporator coil. When this board fails, your heat pump may run continuously in heating mode while the outdoor coil ices over completely, or it may fail to recover from defrost — leading to reduced heating efficiency, compressor overload, and eventual system lockout. If you've ruled out the defrost thermostat and outdoor temperature sensor as the fault source, this board is the correct next replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier Replacement Components Division part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Factory OEM boards are manufactured to exact Carrier circuit tolerances, including precise 30\/60\/90-minute defrost timing intervals. Generic aftermarket boards frequently exhibit timing drift, connector mismatch, and premature relay failure — voiding your system warranty and risking compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before servicing. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, smartphone (photograph all wiring before disconnecting). Label every wire lead. The board mounts in the control compartment of the outdoor unit. Allow 30–45 minutes for a careful swap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4ANG024000BBAA\u003c\/strong\u003e heat pump and other select Carrier, Bryant, and Payne heat pump models using the HK32EA001 board. Always verify your unit's existing board part number on the label before ordering. Need fitment confirmation? Our HVAC parts specialists are standing by — order with confidence and get back to comfort faster.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641289036147,"sku":"CARRIE-PH4ANG024000BBAA-CONTROL_BOARD-HK32EA001","price":302.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641289068915,"sku":"CARRIE-PH4ANG024000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":265.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_0e0a11b3-72c6-40ad-b593-91c859f1d150.jpg?v=1775026587"},{"product_id":"carrier-ph4ang018000bcaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 — PH4ANG018000BCAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG018000BCAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part number \u003cstrong\u003eHK32EA001\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier PH4ANG018000BCAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil conditions and initiates timed defrost cycles to prevent frost and ice accumulation on the evaporator coil. When this board fails, the heat pump will remain locked in a frost-over state, lose heating capacity, or run continuous defrost cycles — driving up energy costs and risking compressor damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part No. HK32EA001 | Cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Selectable defrost intervals | 24V control circuit compatible | Direct plug-in connector design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM boards use factory-validated relay logic and timing circuits. Aftermarket alternatives often mis-time defrost intervals, leading to recurring icing or compressor short-cycling — problems that can void your equipment warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Discharge system capacitors and shut off power at the disconnect before accessing the control board. Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter, phone camera (photograph all wiring before removal). Note defrost time selector switch position before swapping boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePH4ANG018000BCAA\u003c\/strong\u003e heat pump. Also compatible with select Bryant and Payne heat pump models sharing this defrost board specification — verify your unit's data plate and existing part number before ordering. Our fitment team is available to confirm compatibility before you buy. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641298112883,"sku":"CARRIE-PH4ANG018000BCAA-CONTROL_BOARD-HK32EA001","price":162.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641298145651,"sku":"CARRIE-PH4ANG018000BCAA-CONTROL_BOARD-HK32EA001-GEN","price":143.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_58315025-ac18-4d7f-8556-dc04fea37ca5.jpg?v=1775026782"},{"product_id":"carrier-ph4ang018000bbaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board 24V for PH4ANG018000BBAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG018000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement defrost control board for the \u003cstrong\u003eCarrier PH4ANG018000BBAA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle — monitoring outdoor coil temperature and initiating timed defrost sequences to melt ice accumulation on the coil. When this board fails, symptoms typically include continuous frost or ice buildup on the outdoor unit, the system failing to switch between heating and cooling modes, or the heat pump running inefficiently due to a coil that never defrosts. A failed board may also cause the reversing valve to stick, preventing proper heat transfer in either direction.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA001 | Also referenced as CEPL130524-01, CEBD420524-04A, CEBD430524-04B — all superseded by this board | 24V, 5A, Single-Phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier Factory Authorized Part ensures exact firmware timing sequences and relay ratings. Aftermarket boards may use incorrect defrost termination logic, causing premature or missed defrost cycles that accelerate compressor wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V low-voltage control wiring harness and securing board to mounting bracket. Tools needed: #2 Phillips screwdriver, needle-nose pliers, smartphone camera (photograph all wiring before disconnecting), and a multimeter to confirm 24V input. Always shut off power at the disconnect before servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PH4ANG018000BBAA\u003c\/strong\u003e heat pump split system. Verify your unit's data plate matches part number HK32EA001 before ordering. Cross-references: CEPL130524-01, CEBD430524-04B. Not sure it fits? Our HVAC parts specialists verify fitment before every order — contact us and we'll confirm compatibility fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641303126387,"sku":"CARRIE-PH4ANG018000BBAA-CONTROL_BOARD-HK32EA001","price":235.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641303159155,"sku":"CARRIE-PH4ANG018000BBAA-CONTROL_BOARD-HK32EA001-GEN","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA001_4f1e0d28-e373-4830-b438-8b4e5407027e.jpg?v=1775026289"},{"product_id":"carrier-ph3zpa036000aa-control-board-hxunht","title":"OEM Carrier Defrost Control Board CESO130076-00 for PH3ZPA036000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board CESO130076-00 for Model PH3ZPA036000AA\u003c\/h1\u003e\u003cp\u003eThis OEM defrost control board is the factory-specified replacement for the \u003cstrong\u003eCarrier PH3ZPA036000AA\u003c\/strong\u003e heat pump. The defrost control board serves as the operational brain of your heat pump's defrost system — it monitors outdoor coil temperature, manages timed defrost cycles, and coordinates reversing valve and fan operation to prevent ice buildup on the outdoor coil. When this board fails, common symptoms include the outdoor unit icing over completely, the system staying locked in defrost mode, erratic cycling behavior, or a total loss of heating capacity in cold weather.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CESO130076-00 | Superseded\/cross-reference by HK32EA008 | Also cross-references: CEPL130433-01, CEPL130433-02, CEBD430433-09A | OEM factory-matched specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards are manufactured to Carrier's exact firmware and relay specifications, ensuring precise defrost timing and sensor thresholds. Aftermarket boards may use off-spec components that cause premature defrost cycling or board burnout, voiding equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: multimeter, 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, and camera\/phone to photograph all wiring harness connections prior to removal. Transfer wire connectors one at a time to avoid miswiring. Verify defrost sensor continuity before reinstalling the access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse in original factory packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH3ZPA036000AA\u003c\/strong\u003e heat pump (3-ton, single-phase). Also compatible with select Bryant and Payne heat pump models sharing the same defrost board specification — confirm your data plate part number before ordering. Note: CESO130076-00 has been superseded by HK32EA008; both are stocked and ship today. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641320624499,"sku":"CARRIE-PH3ZPA036000AA-CONTROL_BOARD-CESO130076-00","price":208.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641320657267,"sku":"CARRIE-PH3ZPA036000AA-CONTROL_BOARD-CESO130076-00-GEN","price":183.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-CESO130076-00_50c43d41-87f0-4054-844c-32f96837b351.jpg?v=1775026321"},{"product_id":"carrier-ph3zpa030000aa-control-board-hxunht","title":"OEM Carrier Defrost Control Board CESO130076-00 for PH3ZPA030000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Circuit Board CESO130076-00 for Model PH3ZPA030000AA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified defrost control circuit board for the \u003cstrong\u003eCarrier PH3ZPA030000AA\u003c\/strong\u003e heat pump. The control board serves as the central \"brain\" of your unit, continuously monitoring sensors and safety switches while coordinating and executing all system operations — including the critical defrost cycle that prevents ice buildup on the outdoor coil in heating mode. When this board fails, you may experience symptoms such as the unit failing to defrost, erratic cycling, no heating or cooling output, or a complete system lockout with no response to the thermostat. Also cross-references as successor part \u003cstrong\u003eHK32EA008\u003c\/strong\u003e (CEPL130433-02 \/ CEBD430433-09A).\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CESO130076-00 | Also superseded by HK32EA008 | Compatible with Carrier, Bryant, and Payne heat pump platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM board built to exact factory specifications — not a third-party clone. Aftermarket control boards often use lower-grade microcontrollers and relays that fail prematurely, void equipment warranties, and may cause erratic system behavior. Only an OEM board guarantees precise defrost timing, sensor thresholds, and safety lockout logic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 4\/5\u003c\/strong\u003e — Control board replacement requires full system shutdown and capacitor discharge before opening the cabinet. Tools needed: ¼\" and 5\/16\" nut drivers, needle-nose pliers, phone or camera to photograph all wiring harness positions before removal. Label every connector. Verify 24V control power at transformer output before condemning the board. Professional installation strongly recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our climate-controlled warehouse. Secure packaging to prevent board damage in transit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the factory replacement for \u003cstrong\u003eCarrier model PH3ZPA030000AA\u003c\/strong\u003e heat pump systems. Also fits select Bryant and Payne units sharing the same control board platform — verify your data plate part number before ordering. Not sure if this board fits your unit? Contact our fitment team before you buy — we verify compatibility at no charge.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641325015411,"sku":"CARRIE-PH3ZPA030000AA-CONTROL_BOARD-CESO130076-00","price":208.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641325048179,"sku":"CARRIE-PH3ZPA030000AA-CONTROL_BOARD-CESO130076-00-GEN","price":183.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-CESO130076-00_3e8faa9b-5759-433e-be81-9250a44e64f2.jpg?v=1775026318"},{"product_id":"carrier-ph3znb060000ab-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH3ZNB060000AB","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH3ZNB060000AB\u003c\/h1\u003e\u003cp\u003eThis OEM defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH3ZNB060000AB\u003c\/strong\u003e heat pump. The defrost control board manages the defrost cycle by monitoring outdoor coil temperature and time intervals, then triggering the reversing valve and outdoor fan to shed frost buildup. When this board fails, common symptoms include the outdoor unit staying locked in defrost mode, failing to initiate defrost at all, erratic short-cycling, or a complete loss of heating capacity in cold weather conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part number HK32EA007 | Factory-matched defrost timing and temperature logic | Direct drop-in replacement | Compatible 24V control circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board uses Carrier's factory-programmed defrost algorithms. Aftermarket boards may use generic timing intervals that cause premature or insufficient defrost cycles, leading to coil icing and compressor strain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V low-voltage and high-voltage wiring harnesses. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter. Always photograph all wiring connections before removal and confirm power is off at the disconnect and breaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders ship same business day from our warehouse when placed before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for Carrier model \u003cstrong\u003ePH3ZNB060000AB\u003c\/strong\u003e heat pump systems. Always cross-reference the part number on your existing board before ordering. Our technical team is available to verify fitment — call or chat before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641327866227,"sku":"CARRIE-PH3ZNB060000AB-CONTROL_BOARD-HK32EA007","price":168.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641327931763,"sku":"CARRIE-PH3ZNB060000AB-CONTROL_BOARD-HK32EA007-GEN","price":148.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_0345de61-8fae-44c1-ac95-f4756d1bf459.jpg?v=1775027133"},{"product_id":"carrier-ph3znb060000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH3ZNB060000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH3ZNB060000AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier defrost control board (part number \u003cstrong\u003eHK32EA007\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH3ZNB060000AA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature and time-based intervals to initiate and terminate defrost cycles, reversing refrigerant flow to melt frost accumulation off the outdoor coil. When this board fails, common symptoms include the heat pump staying locked in cooling mode during cold weather, the outdoor unit icing over completely, erratic or absent defrost cycles, or the system short-cycling with no heat output. Replacing this board with a genuine OEM part restores factory-programmed defrost logic and protects the compressor from ice-related damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA007 | Also cross-references OEM part 1177927 | Genuine Carrier OEM — not an aftermarket substitute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards use factory-calibrated defrost timing and temperature thresholds. Aftermarket boards may use generic time\/temperature curves that cause over- or under-defrosting, reducing efficiency and risking compressor damage over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before servicing. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Transfer wiring connectors one at a time to avoid miswiring. A multimeter is recommended to confirm 24V control circuit integrity after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty from date of purchase. Ships same business day from our warehouse when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PH3ZNB060000AA\u003c\/strong\u003e heat pump. Also replaces Carrier\/Bryant\/Payne units sharing the HK32EA007 or superseded HK32EA001 specification — always verify your unit's data plate and existing board part number before ordering. Our HVAC parts specialists are available to confirm fitment. \u003cstrong\u003eOrder today and get same-day shipping!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641329897843,"sku":"CARRIE-PH3ZNB060000AA-CONTROL_BOARD-HK32EA007","price":315.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641329930611,"sku":"CARRIE-PH3ZNB060000AA-CONTROL_BOARD-HK32EA007-GEN","price":277.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HK32EA007_0f0aa500-173c-4e8f-9a46-1b1b756b2fab.jpg?v=1775027019"}],"url":"https:\/\/nationalhvacparts.com\/collections\/defrost-controls.oembed","provider":"National HVAC Parts","version":"1.0","type":"link"}