{"product_id":"carrier-control-board-fx4cnf048010aaaa","title":"OEM Carrier Control Board CB-FX4CNF04A for Model FX4CNF048010AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board CB-FX4CNF04A for Model FX4CNF048010AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier control board is the primary electronic controller for the FX4CNF048010AAAA fan coil unit, coordinating blower operation, fan speed logic, and the unit's built-in safety interlocks. A defective board typically presents as a non-running blower, erratic fan cycling, or a system that fails to respond to thermostat commands. Built to Carrier's original factory standards, this board provides the exact relay ratings, terminal placement, and control firmware the FX4CNF048010AAAA requires, removing the wiring and behavior uncertainty associated with universal aftermarket boards. The swap is a moderate-difficulty repair for a licensed technician and generally takes 30 to 45 minutes: shut off power at the breaker, photograph the existing wiring, move each harness plug to the new board, and mount it on the factory standoffs. Verify every connection before restoring power to the unit. Using genuine OEM hardware keeps your warranty valid and protects downstream components from electrical faults. This control board is in stock and ships same-day on orders placed before 3PM CST.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FX4CNF048010AAAA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62942890361203,"sku":"carrier-control-board-fx4cnf048010aaaa","price":249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-fx4cnf048010aaaa.jpg?v=1781466148","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fx4cnf048010aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}