{"product_id":"carrier-ph13nr03000gajaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH13NR03000GAJAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH13NR03000GAJAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-specified defrost control board for the \u003cstrong\u003eCarrier PH13NR03000GAJAA\u003c\/strong\u003e heat pump. The defrost control board monitors outdoor coil temperature and manages timed defrost cycles to prevent ice accumulation on the evaporator coil — a critical function in heat pump operation. When this board fails, symptoms include a heavily iced outdoor coil, the system running continuously in heating mode without defrosting, short-cycling, or a complete loss of heating efficiency during cold weather. Replacing it with the correct OEM part restores factory-programmed defrost timing and sensor logic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part No. HK32EA007 | 24V control voltage | 1-Phase | Compatible with Carrier, Bryant, and Payne heat pump platforms | Factory-calibrated defrost cycle timing\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 algorithms. Aftermarket boards often use generic timing intervals that can cause under- or over-defrosting, leading to coil damage and reduced efficiency over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker before removing the old board. Photograph all wiring harness connections before unplugging. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone or camera for wiring reference. 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. 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 the direct OEM replacement for \u003cstrong\u003eCarrier model PH13NR03000GAJAA\u003c\/strong\u003e heat pump condensers. Cross-references with Carrier, Bryant, and Payne heat pump applications using the HK32EA007 board. Always verify your existing board's part number on the component label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — order with confidence and get back to comfort fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641874305395,"sku":"CARRIE-PH13NR03000GAJAA-CONTROL_BOARD-HK32EA007","price":275.99,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641874338163,"sku":"CARRIE-PH13NR03000GAJAA-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_1a101e1c-49d7-4865-aae3-4e1a8616eae2.jpg?v=1775026914","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nr03000gajaa-control-board-15t5bk","provider":"National HVAC Parts","version":"1.0","type":"link"}