OEM Carrier 60VA Control Transformer for Model PH12NA060000AGAA

This OEM Carrier control transformer (part number HT01AW229) is the factory-specified replacement for the Carrier PH12NA060000AGAA heat pump system. The transformer steps down line voltage (115V, 208V, or 230V primary) to a safe 24V secondary to power the low-voltage control circuit — including the thermostat, contactor coil, reversing valve solenoid, and control board logic. When this transformer fails, the entire control circuit loses power: the thermostat goes blank, the system will not respond to calls for heating or cooling, and you may detect a faint burnt odor near the air handler or control panel.

• Specs: 60 VA rating | 115 / 208 / 230V primary | 24V secondary output | Multi-tap primary for universal voltage compatibility | OEM part number HT01AW229 (also cross-references HT01AW229A)
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part built to exact VA rating and insulation class. Generic transformers often run under-rated VA, causing overheating and repeated failures — especially on larger heat pump systems with higher control-circuit loads like the PH12NA060000AGAA.
• Install difficulty: 3/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdriver, wire stripper, multimeter, needle-nose pliers. Label all wires before removal. Verify correct primary tap for your supply voltage (115V, 208V, or 230V) before energizing.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Engineered as the OEM direct replacement for Carrier PH12NA060000AGAA heat pump systems. Always verify your unit's supply voltage and confirm the 60VA rating on your existing transformer's label or equipment data plate before ordering. Not sure if this is your part? Our fitment team verifies compatibility before you buy — contact us today and get back up and running fast.