OEM Carrier Control Transformer 60VA 115/208/230-24V for Model PH12NA036000ACAA

This OEM control transformer (part number HT01AW229) is the factory-specified replacement for the Carrier PH12NA036000ACAA heat pump system. The transformer steps down line voltage (115/208/230V) to the 24V control circuit voltage required to power the thermostat, contactor coil, gas valve, and control board. When this transformer fails, the entire control circuit loses power — the result is a completely unresponsive system: the thermostat goes blank, the outdoor unit won't engage, and no heating or cooling occurs.

• Specs: 115/208/230V primary input | 24V secondary output | 60VA rated | OEM part number HT01AW229 / HT01AW229A | Factory-matched to Carrier PH12NA036000ACAA
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA tolerances, protecting downstream components like the control board and gas valve from voltage fluctuation. Generic units can run outside rated VA, causing nuisance trips and premature component failure.
• Install Difficulty: 3/5 — Disconnect power at the breaker and verify zero voltage before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, multimeter. Label all low-voltage wires before disconnecting. Confirm primary voltage tap (115V or 208/230V) matches your supply before energizing.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PH12NA036000ACAA heat pump. Cross-references include HT01AW229A. Always verify VA rating, primary voltage, and mounting configuration against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — order with confidence and receive fast, same-day shipping.