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This genuine Carrier transformer converts incoming line voltage into the low-voltage power your FB4ANB070000AFAA fan coil requires to run its control board, thermostat, and relays. A failed or shorted transformer cuts power to the entire control circuit, resulting in an unresponsive system, a dead thermostat, blown fuses, or a unit that simply won't start. This OEM replacement is engineered to the exact primary and secondary voltage and VA rating Carrier specifies for the FB4ANB070000AFAA, delivering a precise fit and reliable factory-grade performance. Installation is best performed by a qualified HVAC technician and generally takes 20-30 minutes; always disconnect power first and label the primary and secondary leads before removing the old transformer to guarantee correct reconnection. Restore stable low-voltage power and protect your control board and thermostat from intermittent faults with the correct OEM part. In stock and ships same-day on orders placed before 3PM CST, keeping your system downtime to a minimum. Backed by our exact-fit guarantee for the FB4ANB070000AFAA fan coil.
This part is compatible with Carrier model FB4ANB070000AFAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.