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This factory-authorized OEM transformer is the exact replacement for the Carrier UPFLOW080HCU%12 furnace. Rated at 50VA, it steps down incoming line voltage (120/208/240 VAC) to a safe 24V output to power your system's control board, thermostat, and all low-voltage control circuits. When this transformer fails, your entire control circuit loses power — symptoms include a completely unresponsive thermostat, a furnace that won't initiate any call for heat, or a tripped fuse on the control board caused by a shorted secondary winding.
Compatibility: Designed as a direct OEM replacement for the Carrier UPFLOW080HCU%12 furnace. Verify your unit's data plate shows a 24V control circuit and confirm primary voltage (120V or 240V) before ordering. Cross-references: Totaline P201-35150, HCTY156D0LS11102. Not sure this is the right part? Our HVAC parts specialists verify fitment before you order — contact us today and get your furnace back online fast.