OEM Carrier Control Transformer 60VA 115/208/230V for Model PH13PR03000GAJAA

This OEM control transformer (part number HT01AW229) is the factory-specified replacement for the Carrier PH13PR03000GAJAA heat pump system. The transformer steps down line voltage (115, 208, or 230V primary) to a safe 24V AC secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and all safety switching. When this transformer fails, the system goes completely silent: the thermostat goes blank, no calls for heating or cooling are processed, and the unit will not respond to any commands. A failed transformer is often misdiagnosed as a control board failure, making correct part identification critical.

• Specs: 60VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | 50/60 Hz | Foot-mount configuration | Factory OEM part number HT01AW229
• OEM vs Generic: This is a Factory Authorized Part built to Carrier's exact VA rating and insulation class. Undersized or off-brand transformers may overheat under full control-circuit load, trip thermal protection, and fail prematurely — especially in systems with zone boards or accessories drawing additional VA.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before proceeding. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing. Photograph all wiring connections before disconnecting the old unit.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH13PR03000GAJAA. Also cross-references under part number HT01AW229A. Confirm your supply voltage and VA requirement on the unit data plate before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you order if you have any questions.