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This genuine OEM Carrier control board (CESO110057) serves as the command center of your FB4ASM060000AAAA fan coil, processing thermostat signals and sequencing the blower motor, relays, and safety circuits. A failing board typically shows up as a fan that won't run, continuous blower operation, blown control fuses, or a complete loss of heating and cooling response. This factory-matched replacement is built to the exact specifications of the FB4ASM060000AAAA, so terminal layout, timing, and control logic match your existing wiring harness. Installation is a moderate-to-advanced job: disconnect power first, photograph every connector, and transfer plugs one at a time to avoid wiring mistakes, then confirm any dip-switch or jumper positions match the old board. Budget 30-60 minutes. Because power surges and a weak transformer often cause board failures, inspect the low-voltage circuit before installing to safeguard your new board. Restore dependable, precise system control with a part made to OEM standard. In stock and ships same-day when you order before 3PM CST.
This part is compatible with Carrier model FB4ASM060000AAAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.