OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH10PA048000ACAA

This is the OEM factory-authorized replacement control transformer for the Carrier PH10PA048000ACAA packaged heat pump unit. The control transformer steps down the high-voltage supply (115, 208, or 230 VAC primary) to the 24 VAC secondary voltage that powers the entire low-voltage control circuit — including the thermostat, contactor coil, reversing valve, and control board. When this transformer fails, the result is total loss of low-voltage control: the thermostat goes blank, the system becomes completely unresponsive, and no heating or cooling operation is possible. A failing transformer may also blow the control fuse repeatedly or produce a burning smell near the air handler cabinet.

• 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
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA and voltage tolerances for the PH10PA048000ACAA's control circuit load. Generic units often run at lower VA capacity, causing nuisance fuse trips and premature failure under full control-circuit load.
• Install difficulty: 2/5 — Disconnect all power before servicing. Tools needed: multimeter, flathead and Phillips screwdrivers, needle-nose pliers. Verify correct primary tap connection for your supply voltage (115V, 208V, or 230V) before energizing. Always confirm fuse integrity before and after replacement.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH10PA048000ACAA packaged heat pump units. Confirm your supply voltage and verify the existing transformer's VA rating on the unit data plate before ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and enjoy same-day shipping on all in-stock parts.