OEM Carrier 50VA Control Transformer P201-35150 for Model UPFLOW100FAUHC12

This is the genuine OEM factory-replacement control transformer for the Carrier UPFLOW100FAUHC12 upflow air handler. The transformer steps down high-voltage line power to a safe 24V signal used by the control board, thermostat, and all low-voltage system components. When this part fails, the entire control circuit loses power — resulting in a completely dead thermostat, no call-for-heat response, or a system that won't turn on at all despite power being present at the unit.

• Specs: 50 VA rating | Primary voltage: 120/208/240 VAC multi-tap | Secondary voltage: 24 VAC | 60 Hz | Single phase | CSA listed | OEM part number: P201-35150
• OEM vs Generic: This is a genuine Carrier/Totaline factory part. OEM transformers are wound to exact VA tolerance and primary tap specifications for your unit. Aftermarket units can suffer from core saturation or incorrect VA ratings that stress and shorten the life of your control board.
• Install difficulty: 2/5 — Always shut off power at the breaker before starting. Discharge any stored voltage and verify with a multimeter. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Photograph all wiring connections before removal. The multi-tap primary must be connected to the correct voltage terminal matching your supply voltage.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse. Fast, insured delivery nationwide.

Compatibility: Directly replaces OEM part number P201-35150 on the Carrier UPFLOW100FAUHC12 upflow air handler. Verify your unit's supply voltage (120V, 208V, or 240V) before connecting the multi-tap primary leads — incorrect tap selection can damage downstream control components. Questions about fitment? Our HVAC parts specialists confirm compatibility before you order.