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This OEM Carrier transformer converts incoming line voltage to the 24V control voltage that powers the thermostat, control board, and relays in the Carrier FA4BNF060000AAAA fan coil unit. If the transformer fails, the thermostat goes dark and the control circuit loses power, leaving the system unable to call for heating or cooling. Transformers commonly blow because of a short or a failed downstream component, so inspect the control wiring before installing the new part. This is a genuine Carrier-spec transformer with the correct primary and secondary voltage ratings and VA capacity for the FA4BNF060000AAAA, providing safe and stable control power. Installation is moderate difficulty: disconnect power, label the primary and secondary leads, mount the replacement, and wire it to match the original. Most installs take 20-30 minutes and are best performed by an HVAC technician. Restoring control power brings the entire system back online. We ship same-day on in-stock orders placed before 3PM CST to minimize your downtime. Choose genuine OEM components for dependable, long-term performance.
This part is compatible with Carrier model FA4BNF060000AAAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.