OEM Carrier 50VA Control Transformer P201-35150 for Model UPFLOW070FAUS12A

This OEM control transformer is the factory-specified replacement for the Carrier UPFLOW070FAUS12A upflow gas furnace. It steps down incoming line voltage from 120/208/240 VAC to a safe 12/24 VAC output to power your system's control board, thermostat, and all low-voltage control circuits. When this transformer fails, the entire control circuit loses power — symptoms include a completely unresponsive thermostat, a furnace that won't start at all, or a blown 3-amp fuse on the control board caused by a secondary circuit short.

• Specs: 50 VA rating | Primary: 120/208/240 VAC | Secondary: 12/24 VAC | Single phase | 60 Hz | CSA listed | Part # P201-35150
• OEM vs Generic: This is a genuine Carrier/Totaline factory-authorized transformer wound to exact VA and voltage tolerances. Off-brand transformers often run underrated VA, causing thermal cutout trips and premature failure under normal furnace load cycles.
• Install difficulty: 2/5 — Disconnect power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after installation). Label or photograph all low-voltage wire connections before removing the old unit.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model UPFLOW070FAUS12A upflow gas furnace. Verify primary voltage matches your supply (120V or 240V tap) before ordering. If your control board fuse blew along with the transformer, inspect all low-voltage wiring for shorts before installing the new part. Questions about fitment? Our HVAC parts team confirms compatibility before you order — reach out before checkout.