OEM Carrier Control Transformer 60VA 115/208/230V for Model PH13NR03000GAHAA

This is the genuine OEM factory-authorized control transformer for the Carrier PH13NR03000GAHAA heat pump system. The transformer steps down line voltage (115V, 208V, or 230V primary) to the 24V AC signal that powers every low-voltage control circuit in your system — including the thermostat, contactor coil, reversing valve, and control board. When this transformer fails, the entire control circuit goes dead: the thermostat goes blank, the system won't respond to calls for heating or cooling, and no diagnostic codes will display. A blown transformer is often caused by a shorted control wire, failed contactor coil, or wiring fault that overloaded the secondary circuit — always inspect the low-voltage wiring before installing a replacement.

• Specs: 60VA rating | Primary voltage: 115V / 208V / 230V (multi-tap) | Secondary voltage: 24V AC | Foot-mounted design | OEM part number: HT01AW229 (also known as HT01AW229A)
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part built to exact VA and impedance tolerances. Generic transformers with under-rated VA capacity are prone to thermal overload and premature failure, leaving your system down again within a season.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: multimeter (verify 0V before touching any wire), flathead and Phillips screwdrivers, needle-nose pliers, wire nuts. Photograph all wiring connections before disconnecting. Test secondary output (should read 24–28V AC) before buttoning up the unit.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH13NR03000GAHAA. Verify your unit's data plate lists a 60VA transformer with 115/208/230V primary and 24V secondary before ordering. Cross-references: HT01AW229A. Have a question about fitment? Our HVAC parts specialists verify compatibility before every order — contact us today and get your system back online fast.