{"product_id":"carrier-control-board-fx4bnf030000aaaa","title":"OEM Carrier Control Board CESO110074 for Model FX4BNF030000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board CESO110074 for Model FX4BNF030000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control board is the electronic brain of your air handler, coordinating blower operation, timing sequences, safety interlocks, and communication between the thermostat and motor. Designed as a direct-fit replacement for the Carrier FX4BNF030000AAAA fan coil unit, it restores precise control over fan speeds and system staging for efficient, reliable comfort. A failed control board often shows up as a blower that won't start, runs constantly, or ignores thermostat commands — all signs it's time for a genuine replacement. Built to exact OEM specifications, this board ensures full compatibility with your unit's wiring harness and factory programming. Installation is an advanced repair best left to a qualified HVAC technician: disconnect power, photograph and transfer the wiring connections, and swap the board in about 30 to 45 minutes. Avoid the headaches of universal boards and aftermarket guesswork with a factory-grade part that fits and functions exactly like the original. In stock and ships same-day when ordered before 3PM CST.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FX4BNF030000AAAA.\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":62942895276403,"sku":"carrier-control-board-fx4bnf030000aaaa","price":156.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-fx4bnf030000aaaa.jpg?v=1781466455","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fx4bnf030000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}