{"product_id":"carrier-hb1ajx030000aaaa-control-board-6ymr4l","title":"OEM Carrier Defrost Control Board CESO110063-02 — HB1AJX030000AAAA","description":"\u003ch1\u003eOEM Carrier Defrost Control Board CESO110063-02 for Model HB1AJX030000AAAA\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 HB1AJX030000AAAA\u003c\/strong\u003e heat pump system. The defrost control board manages the timing and execution 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 system that never enters defrost mode — causing the outdoor coil to ice over completely — or one that locks out entirely, runs erratic heating cycles, or fails to switch between heating and defrost modes. Replacing the defrost control board with an OEM-matched unit restores precise factory cycle timing and full system reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part No. CESO110063-02 | Defrost Control Board | Factory-matched timing intervals | Compatible with 24V control circuit | Designed for Carrier HB1AJX030000AAAA heat pump platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards use factory-calibrated defrost timing logic and components rated for the exact electrical environment of your unit. Generic boards may use off-spec relays or imprecise timing circuits that cause premature re-icing or unnecessary defrost lockouts — shortening compressor life and reducing efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnect and lockout of power before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, phone or camera to document wiring before removal. Terminals should be labeled and transferred one at a time to avoid miswiring. HVAC technician recommended if unfamiliar with control board replacement.\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 stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This board is engineered as a direct OEM replacement for the Carrier \u003cstrong\u003eHB1AJX030000AAAA\u003c\/strong\u003e heat pump. Always verify your existing board's part number against CESO110063-02 before ordering. Have your model and serial number ready — our fitment team is available to confirm compatibility before you purchase. \u003cstrong\u003eOrder now and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909351821683,"sku":"CARRIE-HB1AJX030000AAAA-CONTROL_BOARD-CESO110063-02","price":102.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909351854451,"sku":"CARRIE-HB1AJX030000AAAA-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_45f6c9b9-c777-41b0-96dd-480cc389dfe7.jpg?v=1782912634","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hb1ajx030000aaaa-control-board-6ymr4l","provider":"National HVAC Parts","version":"1.0","type":"link"}