{"product_id":"carrier-control-board-fb4anb042000agaa","title":"OEM Carrier Control Board for Model FB4ANB042000AGAA Fan Coil","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board for Model FB4ANB042000AGAA Fan Coil\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier control board is the electronic brain of your FB4ANB042000AGAA fan coil air handler, governing blower speed, fan-on\/off timing, and the safety interlocks that link your thermostat to the indoor unit. A failed board commonly results in a blower that won't operate, erratic or nonstop fan cycling, no response to thermostat demands, or fault codes flashing on the diagnostic LED. Manufactured to Carrier's exact factory specifications, this board is a direct replacement for the FB4ANB042000AGAA, matching relay logic and connector pinouts so no rewiring is necessary. Expect a moderate 30-45 minute installation best suited to seasoned DIYers or HVAC technicians—cut power at the breaker first and photograph every wiring harness before disconnecting to ensure flawless reassembly. Genuine OEM electronics deliver dependability and longevity that aftermarket boards can't rival, protecting your blower motor and overall comfort. Orders placed before 3PM CST ship the same day to keep system downtime to a minimum. Return precise, factory-spec control to your air handler with the part Carrier built for it.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4ANB042000AGAA.\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":62954806673779,"sku":"carrier-control-board-fb4anb042000agaa","price":189.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fb4anb042000agaa","provider":"National HVAC Parts","version":"1.0","type":"link"}