OEM Carrier Control Transformer 50VA 120/208/240V – 24V for Model UPFLOW100UAHAC14

This is the factory OEM replacement control transformer (Part # P201-35150) for the Carrier UPFLOW100UAHAC14 air handler. The transformer steps down the incoming 120/208/240V line voltage to a safe 12/24V AC signal that powers your system's control board, thermostat wiring, and all low-voltage accessories. When this transformer fails, the entire control circuit goes dark — the thermostat loses communication, the system refuses to respond to calls for heating or cooling, and nothing runs. Replacing it restores all low-voltage control functions immediately.

• Specs: 50VA rating | Primary: 120/208/240 VAC | Secondary: 12/24 VAC | 60 Hz | Single-phase | CSA Listed | Totaline / Carrier OEM factory part
• OEM vs Generic: This OEM unit is wound to exact factory VA and voltage tolerances, ensuring the control board and thermostat receive a clean, stable 24V signal. Generic transformers with loose tolerances can under-deliver voltage under load, causing erratic board behavior or nuisance lockouts.
• Install difficulty: 2/5 — Shut off power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, multimeter (to confirm 24V output after install), wire nuts or push connectors. Label all wires before disconnecting the old transformer. Typical install time: 20–30 minutes.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier UPFLOW100UAHAC14 air handler. Verify your unit's data plate shows a 120/208/240V primary control circuit before ordering. If you are unsure of fit, our technical team will verify compatibility before you place your order — just reach out.