OEM Carrier Transformer 60VA 115/208/230V — HT01AW229 for Model PH13NR04200GAHAA

This OEM foot-mounted control transformer is the factory-specified replacement for the Carrier PH13NR04200GAHAA heat pump system. The transformer steps down high-voltage line power (115, 208, or 230VAC primary) to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, reversing valve, and safety switches. When this component fails, the entire system goes dark: the thermostat loses power, the contactor won't pull in, and the unit will not respond to any call for heating or cooling. A failed transformer is often indicated by a tripped circuit breaker on the 24V side, a burnt smell, or a completely unresponsive control board.

• Specs: 60 VA rating | Primary: 115 / 208 / 230 VAC multi-tap | Secondary: 24 VAC | Foot-mounted chassis | OEM Part # HT01AW229 / HT01AW229A
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP). OEM transformers are wound to exact VA and impedance specifications for your unit — generic substitutes often use lower-grade core materials and run hotter, shortening the lifespan of downstream control components.
• Install difficulty: 3/5 — Shut off all power (line and control) before servicing. Tools needed: multimeter (to verify primary/secondary voltage and confirm failure), flat-head and Phillips screwdrivers, wire stripper, and spade terminals. Label all wiring prior to disconnecting. Confirm tap selection matches your supply voltage (115V vs. 208/230V) before energizing.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed as the direct OEM replacement for Carrier model PH13NR04200GAHAA. Cross-references include suffix variant HT01AW229A. Always verify your unit's data plate voltage and VA requirements before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.