{"product_id":"carrier-control-board-fb4bnl036000aaaa","title":"OEM Carrier Control Board CESO110074 for FB4BNL036000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board CESO110074 for FB4BNL036000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier control board manages blower operation, fan speed timing, and safety interlocks in your FB4BNL036000AAAA fan coil unit. Acting as the air handler's command center, it reads thermostat input and energizes the motor and relays in the proper sequence. A failed board often presents as a blower that won't start, erratic cycling, or a unit that ignores the thermostat entirely. Installing a factory-matched replacement restores correct operation and protects downstream components from electrical faults. This board is built to the exact specifications of the FB4BNL036000AAAA, with matching connector layout and relay ratings for a true direct fit. Installation is moderate and should be performed by a licensed HVAC technician: disconnect power, photograph the wiring, transfer connectors one at a time, and mount the new board. Most techs finish in 30 to 45 minutes. OEM removes the fitment and reliability uncertainty of aftermarket boards. In stock and ships same-day on orders placed before 3PM CST. Get your system running correctly with NationalHVACParts.com.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4BNL036000AAAA.\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":62951128400243,"sku":"carrier-control-board-fb4bnl036000aaaa","price":189.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fb4bnl036000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}