{"product_id":"carrier-control-board-fc4bnb048010aaaa","title":"OEM Carrier Control Board CESO110074 for Model FC4BNB048010AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board CESO110074 for Model FC4BNB048010AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control board (CESO110074) is the electronic brain of your FC4BNB048010AAAA fan coil unit, managing blower operation, fan timing, and safety interlocks across heating and cooling modes. When a control board fails, you may see a blower that won't start, erratic fan cycling, no response to the thermostat, or repeated nuisance lockouts. This factory replacement is built to exact Carrier specifications, ensuring correct relay logic, timing sequences, and terminal pinouts for a true plug-and-play fit. Replacement is a moderate job best suited to experienced DIYers or a technician: kill power at the breaker, photograph the wiring harness, transfer connectors one at a time to the new board, and confirm dip-switch settings match the original. Genuine Carrier electronics restore reliable, code-correct operation and avoid the compatibility headaches of aftermarket boards. In stock and ships same-day on orders placed before 3PM CST, getting your air handler back online quickly. Verified fitment for the FC4BNB048010AAAA fan coil.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FC4BNB048010AAAA.\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":62949263704435,"sku":"carrier-control-board-fc4bnb048010aaaa","price":189.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fc4bnb048010aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}