OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH13NR024000AAAA

This OEM control transformer (part# HT01AW229) is the factory-specified replacement for the Carrier PH13NR024000AAAA heat pump system. The control transformer steps down high-voltage line power (115/208/230V) to the 24V AC signal that energizes your thermostat, contactor coils, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — your thermostat will go blank, the unit will not respond to calls for heating or cooling, and no components will activate. A failed transformer can also trip a fuse or circuit breaker on the secondary (24V) side, so always check for downstream shorts before installing a replacement.

• Specs: 60 VA power rating | 115/208/230 VAC multi-tap primary | 24 VAC secondary | 50/60 Hz | Foot-mount configuration | OEM part# HT01AW229
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA and voltage tolerances, ensuring reliable 24V output under full control-circuit load. Generic transformers often run undersized VA ratings, causing voltage sag that leads to contactor chatter and premature board failure.
• Install difficulty: 3/5 — Shut off all power at the disconnect and breaker before proceeding. Tools needed: multimeter (confirm 0V before touching wires), flathead and Phillips screwdrivers, wire stripper, needle-nose pliers. Always verify the secondary fuse or inline fuse holder is intact and check for wiring shorts before energizing the new transformer.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered and tested for the Carrier PH13NR024000AAAA heat pump system. Also cross-references with HT01AW229A. Verify your unit's data plate primary voltage configuration (115V, 208V, or 230V) before connecting to ensure the correct tap is used. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you order — contact us today and get your system back up and running fast.