{"product_id":"carrier-control-board-fb4bnl048000aaaa","title":"OEM Carrier Control Board CESO110074 for FB4BNL048000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board CESO110074 for FB4BNL048000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier control board governs blower operation, fan speed timing, and safety logic in your FB4BNL048000AAAA fan coil unit. As the control center of the air handler, it interprets thermostat signals and energizes the motor and relays at the right moments. A failed board often shows up as a blower that won't run, random cycling, or a unit unresponsive to the thermostat. Installing a factory-matched replacement restores correct sequencing and shields connected components from voltage faults. This board is manufactured to the precise specifications of the FB4BNL048000AAAA, so terminal layout and relay ratings align exactly for a direct fit. Installation difficulty is moderate and should be handled by a licensed HVAC technician: disconnect power, photograph the harness, transfer connectors one at a time, and secure the new board. Most techs complete it in 30 to 45 minutes. OEM eliminates the fitment and reliability risks of aftermarket boards. In stock and ships same-day on orders before 3PM CST. Restore your system the right way with NationalHVACParts.com.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4BNL048000AAAA.\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":62951126958451,"sku":"carrier-control-board-fb4bnl048000aaaa","price":189.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fb4bnl048000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}