OEM Carrier 50VA Control Transformer P201-35150 for Model YAC36100YAC208T

This is the genuine OEM replacement control transformer for the Carrier YAC36100YAC208T packaged unit. The transformer steps down incoming line voltage (120/208/240 VAC) to safe low-voltage output (12/24 VAC) to power the control board, thermostat circuit, and all low-voltage switching components. When this transformer fails, the entire control circuit loses power — the result is a completely unresponsive system: blank thermostat, no contactor pull-in, and no call-for-heat or call-for-cooling response. Replacing it with the correct OEM part restores factory-spec voltage regulation and protects downstream electronics from surges and brownouts.

• Specs: 50 VA rating | Primary voltage: 120/208/240 VAC multi-tap | Secondary voltage: 12/24 VAC | Single phase | 60 Hz | CSA listed | Dimensions: 3.8"L × 3.1"W × 2.2"H
• OEM vs Generic: This is the factory-authorized Carrier/Totaline part built to exact VA and voltage tolerances. Off-brand transformers frequently run under-rated VA, causing thermal overload trips and premature failure of control boards — an expensive downstream consequence.
• Install difficulty: 3/5 — Disconnect all power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, multimeter (to confirm 24V output post-install), wire nuts or terminal connectors. Label all low-voltage wires before disconnecting. Incorrect primary tap selection on multi-voltage units is the most common installation error — confirm your supply voltage first.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.

Compatibility: Factory-matched for Carrier model YAC36100YAC208T. The multi-tap primary (120/208/240V) makes this transformer suitable across a range of Carrier commercial and residential packaged equipment sharing the P201-35150 specification. Always verify your unit's supply voltage and VA requirement on the data plate before ordering. Need fitment confirmation? Our HVAC parts specialists are standing by — order now and ship today.