OEM Carrier 50VA Control Transformer P201-35150 for Model UPFLOW080FAU%14

This OEM step-down transformer is the factory-specified replacement for the Carrier UPFLOW080FAU%14 upflow gas furnace. The transformer steps incoming line voltage down from 120/208/240V AC to a safe 12/24V AC to power your furnace's control board, thermostat circuit, and all low-voltage components. When this part fails, the entire control circuit goes dark — symptoms include a thermostat with no display, a furnace that won't respond to any call for heat, or a system that appears completely dead despite normal line voltage at the unit.

• Specs: 50VA rating | Primary: 120/208/240V AC | Secondary: 12/24V AC | 60 Hz | Single phase | CSA listed | Totaline / Carrier Factory Authorized Part
• OEM vs Generic: This is a genuine Carrier OEM part (P201-35150) manufactured to factory tolerances. Generic transformers often carry lower VA ratings or looser voltage tolerances, risking nuisance tripping, control board damage, or premature failure under normal HVAC load cycling.
• Install difficulty: 3/5 — Line voltage is present inside the furnace cabinet. Always shut off the disconnect switch and confirm power is off with a multimeter before beginning work. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire nuts. Photograph all wiring connections before removal. The transformer is typically mounted to the blower deck or control panel bracket with two screws.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier UPFLOW080FAU%14 upflow gas furnace series. Always verify the part number on your existing transformer's label before ordering to confirm fitment. Need help? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.