IMAGE COMING SOON
Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
This genuine OEM Carrier control board governs every function of your FB4BNF018010AAAA fan coil unit, coordinating blower operation, safety limits, and thermostat communication. When the board fails you may notice the blower won't run, the fan cycles erratically, the unit throws fault codes, or the system ignores thermostat demands altogether. Engineered to exact factory specifications, this board is the precise replacement for the FB4BNF018010AAAA, matching the original's connector positions, relay logic, and control firmware so performance is identical. It seats in the same mounting bracket and reuses the existing wiring harness and plug-in connectors. Installation is moderate difficulty and best handled by a confident DIYer or HVAC professional — photograph the wiring, disconnect power at the breaker, and transfer one connector at a time to prevent mistakes. Swapping in a fresh OEM control board restores complete, trouble-free operation to your fan coil. In stock and ships same-day when you order before 3PM CST, minimizing downtime and getting your system running again fast.
This part is compatible with Carrier model FB4BNF018010AAAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.