OEM Carrier Control Transformer 40VA 120V/24V for Model UPFLOW080HCU12A

This OEM control transformer (Part No. P201-35150) is the factory-specified replacement for the Carrier UPFLOW080HCU12A upflow gas furnace. The transformer steps down line voltage from 120V AC to 24V AC to power the low-voltage control circuit — including the thermostat, control board, gas valve, and all safety switches. When the transformer fails, the entire control system goes dark: the thermostat shows no power, the furnace will not respond to any call for heat, and no indicator lights illuminate on the control board.

• Specs: 120V primary | 24V secondary | 40VA rated | Factory-matched OEM replacement | Part No. P201-35150
• OEM vs Generic: This is a genuine OEM part built to Carrier's exact VA rating and insulation class. Undersized or off-brand transformers can overheat under full control-circuit load, causing nuisance tripping or premature failure — especially when zone valves or multiple accessories are wired in.
• Install Difficulty: 2/5 — Disconnect power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Confirm secondary output reads ~24–28V AC after installation before restoring full power. Always label wires before disconnecting old unit.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier UPFLOW080HCU12A upflow gas furnace. Verify your existing transformer's primary/secondary voltage and VA rating on the data plate or wiring diagram before ordering — some installations with added accessories may require a higher VA-rated upgrade. Our team is available to confirm fitment before you buy. Order today and enjoy same-day shipping on all in-stock parts.