OEM Carrier Control Transformer 60VA 115/208/230V Primary 24V Secondary for Model PH13NA036000ABAA

This OEM control transformer is the factory-specified replacement for the Carrier PH13NA036000ABAA heat pump system. The transformer steps down high-voltage line power (115, 208, or 230V) to the 24V AC signal that energizes the entire low-voltage control circuit — including the thermostat, contactor coil, and any safety boards. When this part fails, the entire control circuit goes dark: the thermostat loses power, the unit refuses to start, and no fault codes can be read from the board. It is often the first component to inspect when a system is completely unresponsive.

• Specs: 60 VA power rating | 115/208/230V AC primary | 24V AC secondary | 50/60 Hz | Foot-mount configuration | OEM Part# HT01AW229
• OEM vs Generic: This is a Factory Authorized Part built to Carrier's exact VA rating and insulation class. Undersized aftermarket transformers can overheat under full control-circuit load, causing intermittent lockouts and premature failure of downstream boards.
• Install difficulty: 2/5 — Always shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or terminal connectors, multimeter to verify 24V output after install. Photograph and label all low-voltage wiring before disconnecting.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH13NA036000ABAA heat pump. Also cross-references to Bryant and Payne models sharing the HT01AW229 / HT01AW229A specification. Always verify primary voltage against your unit's data plate (115V, 208V, or 230V) before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — call or chat today. In stock — ships today.