OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH13PB04800GAAAA

This OEM Carrier control transformer (part# HT01AW229) is the factory-specified replacement for the Carrier PH13PB04800GAAAA heat pump system. The transformer steps down 115/208/230V line voltage to a safe 24V AC signal that powers the entire control circuit — including the thermostat, contactor coil, and safety switches. When this transformer fails, the system loses its control voltage completely: the thermostat goes blank, the unit won't respond to any call for heating or cooling, and no error codes are generated because the board itself has no power. If your system is completely unresponsive and your 24V circuit reads zero volts, this transformer is the most likely culprit.

• Specs: 60VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | 50/60 Hz | Foot-mount configuration | Factory OEM dimensions and wiring leads
• OEM vs Generic: This is a Factory Authorized Parts OEM unit wound to exact Carrier specifications. Generic transformers often use lower-grade core laminations, resulting in voltage sag under load and premature failure — especially in high-VA commercial-grade applications like the PH13PB04800GAAAA.
• Install difficulty: 2/5 — Shut off all power to the unit before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output after install), wire stripper, needle-nose pliers. Photograph all wiring connections before disconnecting the old unit. Match the primary tap to your supply voltage.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH13PB04800GAAAA. Also cross-references to part numbers HT01AW229A, CIN-TRAN, and 30-BV2006. Verify your unit's supply voltage before selecting the primary tap. For fitment questions, our HVAC parts specialists are available to confirm compatibility before you order.