{"product_id":"carrier-ph13nb018000aaaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH13NB018000AAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH13NB018000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board for the \u003cstrong\u003eCarrier PH13NB018000AAAA\u003c\/strong\u003e heat pump. The defrost control board governs the entire defrost cycle — monitoring outdoor coil temperature and timing, then initiating and terminating defrost as needed to clear frost and ice buildup from the evaporator coils. When this board fails, common symptoms include the outdoor unit freezing solid in heating mode, the system never entering defrost, erratic short-cycling, or a full heat pump lockout with no heating output. Replacing it with the correct OEM board restores precise, factory-programmed defrost timing and logic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA007 | Also supersedes: HK32EA001, 1173636, 1177927 | Factory-original Carrier component\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine OEM board is pre-programmed with Carrier's exact defrost algorithms and termination logic. Aftermarket boards may use generic timing intervals that cause under- or over-defrosting, reducing efficiency and compressor life on the PH13NB018000AAAA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before starting. Tools needed: 1\/4\" nut driver, needle-nose pliers, smartphone (photograph all wiring before removal). Transfer wiring harness connectors one at a time to avoid miswiring. Confirm defrost operation through one full cycle 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 HVAC parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePH13NB018000AAAA\u003c\/strong\u003e heat pump systems. Also compatible with select Bryant and Payne heat pump models sharing the HK32EA007 board specification — verify your unit's data plate and existing board part number before ordering. Our parts specialists are available to confirm fitment prior to purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641928896883,"sku":"CARRIE-PH13NB018000AAAA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641928929651,"sku":"CARRIE-PH13NB018000AAAA-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_c22bab0c-bc27-4469-8035-0853d52935b6.jpg?v=1775027072","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nb018000aaaa-control-board-15t5bk","provider":"National HVAC Parts","version":"1.0","type":"link"}