{"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","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc2550hecmrsh500-control-board-15t5bk","provider":"National HVAC Parts","version":"1.0","type":"link"}