{"product_id":"carrier-ph14nb042000aaaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH14NB042000AAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH14NB042000AAAA\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 PH14NB042000AAAA\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 ambient conditions, then initiates and terminates timed defrost sequences to prevent ice buildup on the outdoor coil. When this board fails, you'll commonly experience a frozen outdoor unit, a heat pump that runs in defrost mode continuously or not at all, erratic short-cycling, or a complete loss of heating capacity during cold weather operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HK32EA007 | Also replaces cross-reference: HK32EA001 | OEM manufacturer: Carrier \/ United Technologies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier factory board — not an aftermarket substitute. OEM boards use factory-calibrated timing circuits and matched temperature thresholds. Aftermarket boards may use ±15% tolerance components that cause premature re-freezing or unnecessary defrost cycles, reducing efficiency and stressing the compressor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring harnesses and low-voltage spade terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, smartphone (photograph all wiring before removal). Always disconnect power at the breaker before servicing. Follow all safety lockout\/tagout procedures.\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. Backed by NationalHVACParts.com fitment guarantee.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePH14NB042000AAAA\u003c\/strong\u003e heat pump (4-ton, single-stage R-410A split system). 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. Not sure? Our parts team will confirm fitment before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641751753075,"sku":"CARRIE-PH14NB042000AAAA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641751785843,"sku":"CARRIE-PH14NB042000AAAA-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_456baa6c-e61f-4158-b1c1-f0af04bd9649.jpg?v=1775027122","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph14nb042000aaaa-control-board-15t5bk","provider":"National HVAC Parts","version":"1.0","type":"link"}