OEM Carrier 60VA Control Transformer HT01AW229 for Model PH10PA048000ABAA

This is the OEM factory-specified control transformer for the Carrier PH10PA048000ABAA packaged heat pump unit. The control transformer steps down the high-voltage primary supply (115/208/230V) to the 24V AC signal used to power the thermostat circuit, contactor coils, and all low-voltage controls throughout the system. When this transformer fails, the entire 24V control circuit loses power — the thermostat goes blank, the system will not respond to any call for heating or cooling, and no components will energize. It is one of the first components to check when a unit appears completely unresponsive despite having line voltage at the disconnect.

• Specs: 60 VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | 50/60 Hz | Foot-mount configuration | 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 specifications. Generic transformers often use lower-grade core laminations that run hot under continuous load, shortening the life of downstream 24V components and increasing the risk of nuisance breaker trips on the secondary fuse.
• Install difficulty: 2/5 — Disconnect all power at the unit disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (verify 24V output after installation). Confirm primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing. Always verify the secondary fuse or circuit protection is intact.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH10PA048000ABAA packaged heat pump units. Cross-references include HT01AW229A. Confirm your unit's supply voltage and verify the existing transformer's VA rating and part number on the data plate or wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today.