{"product_id":"carrier-ha1bjx036000acaa-control-board-6ymr4l","title":"OEM Carrier Defrost Control Board CESO110063-02 — HA1BJX036000ACAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board CESO110063-02 for Model HA1BJX036000ACAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board (part number \u003cstrong\u003eCESO110063-02\u003c\/strong\u003e) designed specifically for the \u003cstrong\u003eCarrier HA1BJX036000ACAA\u003c\/strong\u003e heat pump system. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperature and initiating defrost sequences to prevent ice buildup that would otherwise choke airflow and cripple heating efficiency. When this board fails, common symptoms include the outdoor unit freezing solid, the system failing to initiate or exit defrost mode, erratic compressor cycling, or a complete loss of heating capacity during cold weather — all of which can be misdiagnosed as refrigerant issues before the board is identified as the root cause.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part number CESO110063-02 | Factory-programmed defrost timing and temperature logic | 24V control circuit compatible | Direct drop-in replacement with original mounting footprint and terminal layout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board with factory-calibrated defrost logic. Aftermarket boards frequently use generic timing intervals that do not match the HA1BJX036000ACAA's designed defrost thresholds, leading to under-defrosting, over-defrosting, or nuisance lockouts that waste service calls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires shutting off power at the disconnect and breaker before beginning. Tools needed: insulated screwdrivers (Phillips and flathead), needle-nose pliers, multimeter, and camera or phone to photograph all wiring before disconnection. Terminals are labeled but always verify against the unit wiring diagram located on the access panel door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our climate-controlled warehouse in original manufacturer packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model HA1BJX036000ACAA\u003c\/strong\u003e (3-ton heat pump). Always cross-reference the part number on your existing board before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — no guesswork, no returns. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909361979763,"sku":"CARRIE-HA1BJX036000ACAA-CONTROL_BOARD-CESO110063-02","price":102.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909362012531,"sku":"CARRIE-HA1BJX036000ACAA-CONTROL_BOARD-CESO110063-02-GEN","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-CESO110063-02_760fa4ef-220f-4043-9f2c-342848abf3d0.jpg?v=1782912610","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1bjx036000acaa-control-board-6ymr4l","provider":"National HVAC Parts","version":"1.0","type":"link"}