OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH10JA042000ACAA

This OEM control transformer is the factory-specified replacement for the Carrier PH10JA042000ACAA packaged heat pump unit. The transformer steps down line voltage (115, 208, or 230V primary) to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the entire system goes dark: the thermostat loses power, no calls for heating or cooling are processed, and the unit will not operate at all.

• Specs: 60 VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | 50/60 Hz | Foot-mount configuration | OEM part number HT01AW229
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP), manufactured to exact OEM tolerances. Generic transformers often run undersized VA ratings, causing premature thermal cutout trips and repeated control-circuit failures — especially on larger packaged units like the PH10JA042000ACAA that demand the full 60VA output.
• Install difficulty: 3/5 — Disconnect and lock out all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, multimeter. Photograph all wiring connections before disconnecting. Verify correct primary tap selection (115V, 208V, or 230V) matches your supply voltage before energizing.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered for the Carrier PH10JA042000ACAA packaged heat pump. Also cross-references to part numbers HT01AW229A, CIN-TRAN, 30-BV2006, and 30-1814A. Always verify your unit's data plate voltage and confirm the 60VA, 115/208/230V–24V specification before ordering. Have a question about fitment? Our HVAC parts team confirms compatibility before your order ships.