{"product_id":"carrier-ph13nb03100gaaaa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 for PH13NB03100GAAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH13NB03100GAAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board for the \u003cstrong\u003eCarrier PH13NB03100GAAAA\u003c\/strong\u003e heat pump. The defrost control board manages the automatic defrost cycle — monitoring outdoor coil temperature and run time to periodically shift the system into defrost mode, melting frost and ice buildup off the outdoor coil. When this board fails, you'll typically see continuous icing on the outdoor unit, a heat pump stuck in defrost mode, failure to initiate defrost at all, or a system lockout with fault codes pointing to defrost timing or reversing valve circuit issues.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HK32EA007 | Cross-references: 1177927, 1173636 | Factory-original Carrier board — not a third-party substitute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards use Carrier-certified firmware and relay ratings matched to the \u003cstrong\u003ePH13NB03100GAAAA\u003c\/strong\u003e heat pump's defrost sensor inputs and reversing valve timing. Aftermarket boards frequently use off-spec relay contacts and timing chips that can cause erratic defrost cycling or premature compressor wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Power down and lock out the unit at the disconnect before opening the control panel. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, Phillips screwdriver, smartphone (photograph all wiring harness connections before removal). Transfer harness plugs one-at-a-time to avoid miswiring. Verify thermostat defrost demand signal after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. 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 Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model PH13NB03100GAAAA\u003c\/strong\u003e split-system heat pumps. Also cross-references for use on select Bryant and Payne heat pump platforms sharing the same defrost board architecture. Always confirm your existing board's part number label before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641918607731,"sku":"CARRIE-PH13NB03100GAAAA-CONTROL_BOARD-HK32EA007","price":310.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641918640499,"sku":"CARRIE-PH13NB03100GAAAA-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_8dcc4415-a5f8-446a-904c-68066175c2c0.jpg?v=1775026883","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nb03100gaaaa-control-board-15t5bk","provider":"National HVAC Parts","version":"1.0","type":"link"}