OEM Carrier 60VA Control Transformer 115/208/230V–24V for Model PH11JA030000AAAA

This is the factory OEM replacement control transformer for the Carrier PH11JA030000AAAA packaged heat pump unit, identified by OEM part number HT01AW229. The control transformer steps down line voltage (115, 208, or 230V primary) to a safe 24V AC secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the system goes completely dark: the thermostat loses power, nothing calls for heating or cooling, and the unit will not respond to any command. A failed transformer is often misdiagnosed as a bad control board — always test the transformer first.

• Specs: 60VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | Foot-mount configuration | 50/60 Hz | OEM part number HT01AW229 (also replaces HT01AW229A)
• OEM vs Generic: This is a genuine Factory Authorized Parts (FAP) OEM transformer, wound to exact Carrier specifications. Generic aftermarket units frequently run outside rated VA tolerance, overheat under load, and void system warranties.
• Install difficulty: 3/5 — Disconnect all power before beginning. Tools needed: multimeter, wire nuts or spade terminals, screwdriver set, needle-nose pliers. Always verify primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing. Label all wires prior to disconnection.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH11JA030000AAAA packaged heat pump units. Also fits compatible Bryant and Payne equipment calling for the HT01AW229 / HT01AW229A specification. Confirm your unit's data plate voltage and VA rating before ordering. Our team is available to verify fitment before you buy.