{"product_id":"carrier-ph12na018000adaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA001 for PH12NA018000ADAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA001 for Model PH12NA018000ADAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board for the \u003cstrong\u003eCarrier PH12NA018000ADAA\u003c\/strong\u003e heat pump system. The defrost board continuously monitors outdoor coil temperature and initiates timed defrost cycles to clear frost and ice buildup from the evaporator coil. When this board fails, the outdoor coil will ice over completely, the system may short-cycle, efficiency will plummet, and in severe cases the compressor can be damaged from liquid slugging. Common failure symptoms include: the unit never entering defrost mode, the unit getting stuck in defrost, or an audible clicking with no stage transition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number \u0026amp; Specs:\u003c\/strong\u003e OEM Part HK32EA001 | Also cross-references CEPL130524-01, CEBD420524-04A, CEBD430524-04B, 1173636, 1177927 | 24V control voltage | 5A rated | Compatible with heat pump split systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM boards are manufactured to factory tolerance, ensuring precise defrost interval timing and reliable thermostat\/reversing valve integration. Aftermarket boards may use off-spec timing chips that trigger premature or delayed defrost cycles, causing compressor and coil damage over time.\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: 1\/4\" nut driver, flathead and Phillips screwdrivers, needle-nose pliers, phone or camera for wiring photos. Photograph all wiring harness connections before disconnecting. Note defrost time selector switch position on 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 against defects. In-stock and 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 Directly fits Carrier model \u003cstrong\u003ePH12NA018000ADAA\u003c\/strong\u003e heat pump split systems. This board is also used across Carrier, Bryant, and Payne heat pump platforms sharing the HK32EA001 \/ CEPL130524-01 board specification. Always confirm your existing board's part number on the label before ordering. Our fitment team is available to verify compatibility before you purchase — just reach out.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641971233139,"sku":"CARRIE-PH12NA018000ADAA-CONTROL_BOARD-HK32EA001","price":261.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641971265907,"sku":"CARRIE-PH12NA018000ADAA-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_3a29bdc3-79b0-441f-a795-ffb2a2df0bb3.jpg?v=1775026397","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na018000adaa-control-board-15t5bk","provider":"National HVAC Parts","version":"1.0","type":"link"}