OEM Carrier 50VA Control Transformer P201-35150 for Model YAC48110YACX404AC

This is the genuine OEM replacement control transformer for the Carrier YAC48110YACX404AC packaged unit. The transformer steps down incoming line voltage (120/208/240 VAC) to a safe 12/24 VAC to power your system's control board, thermostat, and all low-voltage circuits. When this transformer fails, the entire control circuit loses power — resulting in a completely unresponsive thermostat, a system that won't turn on, or a board that won't communicate. Replacing this part with the correct OEM unit restores proper voltage regulation and protects your system's sensitive electronics.

• Specs: 50 VA rating | Primary voltage: 120/208/240 VAC | Secondary voltage: 12/24 VAC | 60 Hz single-phase | CSA listed | Totaline/Carrier OEM part number P201-35150
• OEM vs Generic: This factory-authorized OEM transformer is wound to exact VA and voltage tolerances for the YAC48110YACX404AC. Generic transformers may deviate in VA capacity, causing control board brownouts, nuisance lockouts, or premature board failure.
• Install difficulty: 2/5 — Disconnect all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label all low-voltage wires before disconnecting. Typical swap time: 20–30 minutes.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed as the direct OEM replacement for Carrier model YAC48110YACX404AC. Cross-references Totaline P201-35150 and is the factory-specified 50VA transformer for this unit. Always verify your existing transformer's VA rating and primary/secondary voltages on the data plate before ordering. Our team is available to confirm fitment — order with confidence and get your system back online fast.