{"product_id":"carrier-ha1bjx018000acaa-control-board-6ymr4l","title":"OEM Carrier Defrost Control Board for HA1BJX018000ACAA — CESO110063-02","description":"\u003ch1\u003eOEM Carrier Defrost Control Board CESO110063-02 for Model HA1BJX018000ACAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM defrost control board (part number \u003cstrong\u003eCESO110063-02\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier HA1BJX018000ACAA\u003c\/strong\u003e heat pump system. The defrost control board manages the timing and initiation of defrost cycles, monitoring outdoor coil temperature and run time to prevent ice buildup on the heat pump's outdoor unit. When this board fails, you may experience a permanently iced outdoor coil, a unit stuck in continuous defrost mode, failure to enter defrost at all, or fault codes indicating a defrost system lockout. Replacing this board with a genuine OEM unit restores factory-programmed defrost logic and timing intervals, protecting the coil and compressor from frost-related damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number CESO110063-02 | Factory defrost timing and temperature control logic | 24V control circuit compatible | Direct drop-in replacement for Carrier HA1BJX018000ACAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board programmed with exact defrost cycle parameters. Aftermarket boards may use generic timing intervals that result in under- or over-defrosting, reducing system efficiency and shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V and line-voltage control wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph and label all wiring harnesses before removal. Discharge any capacitors and shut off power at the disconnect before beginning work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This defrost control board is engineered specifically for the \u003cstrong\u003eCarrier HA1BJX018000ACAA\u003c\/strong\u003e heat pump. Verify OEM part number CESO110063-02 against your existing board label before ordering. If you are unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you complete your purchase. In-stock and ready to ship today — get your system back to peak heating performance fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909366960499,"sku":"CARRIE-HA1BJX018000ACAA-CONTROL_BOARD-CESO110063-02","price":102.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909366993267,"sku":"CARRIE-HA1BJX018000ACAA-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_0ebc7967-7868-407e-9629-8c0d66916ed1.jpg?v=1782912702","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1bjx018000acaa-control-board-6ymr4l","provider":"National HVAC Parts","version":"1.0","type":"link"}