OEM Carrier 40VA Control Transformer P201-35150 for Model YAC36100YAC306

This OEM replacement transformer (part number P201-35150) is the factory-specified control circuit transformer for the Carrier YAC36100YAC306 air conditioning unit. The transformer steps down line voltage (120V) to the 24V low-voltage signal used by the thermostat, contactor coil, and all control board logic. When this part fails, the entire control circuit goes dead — the thermostat shows no response, the system will not energize, and no error codes will appear because the board itself has no power.

• Specs: 40VA rating | 120V primary / 24V secondary | Factory-matched OEM winding tolerances | Compact footprint for direct drop-in fitment on Carrier YAC36100YAC306
• OEM vs Generic: OEM transformers maintain precise VA ratings and winding insulation class. Generic or off-brand units often under-rate their VA capacity, causing premature thermal cutout and repeat failures — especially under high-demand multi-zone control loads.
• Install difficulty: 2/5 — Shut off all power at the breaker and disconnect the low-voltage wiring harness before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Photograph all wiring connections before disconnecting.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Designed as the direct OEM replacement for Carrier model YAC36100YAC306. Always verify your unit's data plate voltage ratings match (120V primary / 24V secondary, 40VA) before ordering. Our fitment team is available to confirm compatibility — contact us before you buy if you have any questions.