{"product_id":"carrier-fb4anb042020abaa-control-board-wmmkjg","title":"OEM Carrier Fan Blower Control Board Kit 322848-751 — FB4ANB042020ABAA","description":"\u003ch1\u003eOEM Carrier Fan Blower Control Board Kit 322848-751 for Model FB4ANB042020ABAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement fan blower control board kit (part number \u003cstrong\u003e322848-751\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FB4ANB042020ABAA\u003c\/strong\u003e air handler. The integrated fan blower control board is the central command module for your air handler's blower assembly — it manages blower motor speed staging, communicates with the thermostat, sequences heating and cooling operation, and monitors safety inputs. When this board fails, common symptoms include a blower that won't start, erratic or incorrect fan speeds, failure to respond to thermostat calls, continuous blower operation that won't shut off, or a complete system lockout with no airborne airflow. Replacing the board with an OEM-matched kit ensures all firmware logic, terminal layouts, and speed tap configurations are factory-correct for your specific unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part No. 322848-751 | Fan Blower Control Board Kit | Factory-matched for Carrier FB4ANB042020ABAA | Includes board and all mounting hardware per kit specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM control boards carry the exact firmware, relay ratings, and terminal configurations Carrier engineered for this air handler. Aftermarket boards frequently require jumper modifications, lack model-specific fault diagnostics, and may void remaining equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, smartphone to photograph all wiring harness connections prior to removal. Transfer wiring harnesses one connector at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eFB4ANB042020ABAA\u003c\/strong\u003e fan coil air handler. Always cross-reference OEM part number 322848-751 and your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you buy for complete peace of mind. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909545316723,"sku":"CARRIE-FB4ANB042020ABAA-CONTROL_BOARD-322848-751","price":156.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909545349491,"sku":"CARRIE-FB4ANB042020ABAA-CONTROL_BOARD-322848-751-GEN","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-fan-322848-751_880a288e-c10d-4106-9f2f-f4505a742f01.jpg?v=1782916815","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fb4anb042020abaa-control-board-wmmkjg","provider":"National HVAC Parts","version":"1.0","type":"link"}