OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH10JA04200GABAA

This OEM control transformer (part number HT01AW229) is the factory-specified replacement for the Carrier PH10JA04200GABAA packaged HVAC unit. The transformer steps down line voltage (115, 208, or 230V primary) to a safe 24V secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and all safety switches. When this transformer fails, the control circuit goes completely dead: the thermostat goes blank, the unit will not respond to any call for heating or cooling, and no fault codes will appear on the board because the board itself has no power.

• Specs: 60 VA power rating | 115/208/230 VAC primary (multi-tap) | 24 VAC secondary | 50/60 Hz | Foot-mounted configuration | Factory OEM part number HT01AW229
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA and voltage tolerance specs. Undersized or off-tolerance aftermarket units can cause erratic thermostat behavior, nuisance tripping, and shortened control board life.
• Install difficulty: 2/5 — Shut off all power to the unit before beginning. Tools needed: multimeter (to verify 24V output post-install), flathead and Phillips screwdrivers, wire nuts or spade connectors. Always photograph existing wiring before disconnecting leads. Verify primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our warehouse — order by 3 PM local time.

Compatibility: Designed for the Carrier PH10JA04200GABAA packaged unit. Also cross-references Bryant and Payne models using the HT01AW229 / HT01AW229A specification. Always verify your unit's data plate voltage and confirm the 60VA / 24V secondary rating before ordering. Our technical team is available to verify fitment — contact us before you order if you have any questions.