OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH10JA018000ACAA

This OEM Carrier control transformer (part number HT01AW229) is the factory-specified replacement for the Carrier PH10JA018000ACAA packaged heat pump unit. The control transformer steps down the high-voltage supply (115, 208, or 230 VAC) to the 24 VAC signal voltage that powers the entire control circuit — thermostats, contactors, relays, and safety switches. When this transformer fails, the result is total control loss: the thermostat goes dark, the system will not call for heating or cooling, and no components will energize. A faulty transformer is often misdiagnosed as a board failure, making correct identification critical before ordering additional parts.

• Specs: 60 VA power rating | 115/208/230 VAC primary (multi-tap) | 24 VAC secondary | 50/60 Hz | Foot-mount configuration | OEM part number HT01AW229 / HT01AW229A
• OEM vs Generic: This is a genuine Factory Authorized Part built to Carrier's exact VA rating and insulation class. Off-brand transformers rated at nominal 60VA often run undervoltage under load, causing nuisance tripping of downstream controls and shortened service life for contactors and boards.
• Install difficulty: 3/5 — Shut off all power at the disconnect and breaker panel before proceeding. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Photograph all wiring connections before disconnecting. Verify primary tap wire matches your supply voltage (115V, 208V, or 230V) before re-energizing.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH10JA018000ACAA packaged heat pump. The multi-tap primary (115/208/230V) makes this transformer suitable across a range of Carrier, Bryant, and Payne equipment sharing the HT01AW229 specification — always verify the OEM part number on your unit's wiring diagram or data plate before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy.