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This genuine OEM Carrier control board (CESO110057) is the electronic brain of your FB4ASX060000AEAA fan coil, managing blower operation, relay sequencing, and safety interlocks based on signals from the thermostat. A failed board can cause no-fan operation, erratic cycling, blown fuses, or a system that won't respond to a call for heating or cooling. This factory-matched replacement is programmed and pinned to the exact specifications of the FB4ASX060000AEAA, so the logic, timing, and terminal layout line up with your existing wiring harness. Installation is a moderate-to-advanced repair: disconnect power, photograph every connector, transfer plugs one at a time to avoid mistakes, and confirm dip-switch or jumper settings match the original. Plan on 30-60 minutes. Because boards are sensitive to voltage spikes, inspect the transformer and low-voltage wiring before installing to avoid a repeat failure. Restore full, reliable system control with a part built to OEM standard. In stock and ships same-day when you order before 3PM CST.
This part is compatible with Carrier model FB4ASX060000AEAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.