{"product_id":"carrier-ph4gnab24000aa-control-board-15t5bk","title":"OEM Carrier Defrost Control Board HK32EA007 — PH4GNAB24000AA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board HK32EA007 for Model PH4GNAB24000AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board for the \u003cstrong\u003eCarrier PH4GNAB24000AA\u003c\/strong\u003e heat pump. The defrost control board governs the entire defrost cycle — it monitors outdoor coil temperature and time intervals, then initiates a timed reverse-cycle defrost to shed ice buildup from the outdoor coil. When this board fails, the most common symptoms include a frozen outdoor unit with no defrost initiation, the system short-cycling on the defrost lockout, or the heat pump running continuously in a failed defrost loop — all of which dramatically reduce heating capacity and efficiency.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part # HK32EA007 | Factory-matched defrost timing and temperature logic | Compatible board revisions: CEBD430524-23A \/ CEPL130524-21 and related variants | Carrier-genuine algorithmic defrost control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards carry factory-calibrated defrost timing tolerances. Aftermarket substitutes often use looser logic thresholds, leading to incomplete defrost cycles, premature compressor lockouts, or coil damage over time. This board is genuine Carrier — not a third-party clone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: ¼\" nut driver, needle-nose pliers, phone\/camera to photograph all wire harness connections before removal. The board mounts in the outdoor unit control compartment; note each connector's keyed position and DIP switch settings before swapping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse — in stock and ready to go.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH4GNAB24000AA\u003c\/strong\u003e packaged heat pump. Cross-references with board assembly numbers CEBD430524-23A, CEBD430524-22A, CEBD430524-24A, and CEPL130524-21. Always verify your existing board's part number against HK32EA007 before ordering. Our fitment team is available to confirm compatibility before you buy — reach out before placing your order and we'll verify the match. \u003cstrong\u003eOrder now and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641230250355,"sku":"CARRIE-PH4GNAB24000AA-CONTROL_BOARD-HK32EA007","price":275.99,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641230283123,"sku":"CARRIE-PH4GNAB24000AA-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_ef4c0f16-5a4f-4a84-a161-7e1758d1b931.jpg?v=1775027139","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph4gnab24000aa-control-board-15t5bk","provider":"National HVAC Parts","version":"1.0","type":"link"}