OEM Carrier 40VA Control Transformer P201-35150 for Model UPFLOW070US12A

This OEM control transformer (part number P201-35150) is the factory-specified replacement for the Carrier UPFLOW070US12A upflow gas furnace. The transformer steps down 120V line voltage to 24V AC to power the low-voltage control circuit — including the thermostat, control board, gas valve, and ignition system. When this transformer fails, the entire control circuit goes dark: the thermostat shows no power, the furnace won't respond to any call for heat or cooling, and in some cases a tripped or blown 3A fuse on the board is the first clue.

• Specs: 120V primary → 24V secondary | 40VA output rating | Factory-matched OEM replacement | Plug-and-play terminal connections for Carrier UPFLOW070US12A wiring harness
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerance specifications. Undersized or off-spec generic transformers can overheat, blow fuses, and stress downstream components like the gas valve solenoid and control board.
• Install difficulty: 2/5 — Always disconnect 120V power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Photograph all wiring connections before removal.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed specifically for the Carrier UPFLOW070US12A upflow gas furnace. Verify transformer VA rating and primary/secondary voltages on your unit's data plate or wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.