OEM Carrier Transformer 50VA 120/208/240-12/24V for Model UPFLOW070HCU%12

This is the factory OEM replacement transformer for the Carrier UPFLOW070HCU%12 gas furnace. Part number P201-35150 is a single-phase, 60 Hz step-down transformer that converts your home's incoming line voltage (120, 208, or 240 VAC) to the safe 12/24V low-voltage signal that powers your control board, thermostat circuit, and all ancillary control devices. When this transformer fails, the entire low-voltage control circuit goes dead — the thermostat goes blank, the furnace won't respond to calls for heat, and no fault codes are generated because the board itself has no power.

• Specs: 50VA rating | Primary: 120/208/240 VAC | Secondary: 12/24 VAC | Single-phase | 60 Hz | CSA listed | OEM part # P201-35150
• OEM vs Generic: This is a genuine Carrier factory-authorized part. OEM transformers are wound to exact VA and voltage tolerances, protecting sensitive control boards from undervoltage or inrush damage that cheaper generic units can cause over time.
• Install Difficulty: 3/5 — Always shut off power at the breaker and verify voltage is zero before touching wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire nuts or spade connectors, and a multimeter to confirm output voltage after installation. Label all wires before disconnecting.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier UPFLOW070HCU%12 furnace. Verify your unit's data plate matches the 50VA, 120/208/240-12/24V transformer specification before ordering. Not sure it fits? Our HVAC parts team confirms fitment before you buy — contact us before placing your order.