OEM Carrier Control Transformer 60VA 115/208/230V — HT01AW229 for Model PH13NR04200GACAA

This is the factory OEM replacement control transformer for the Carrier PH13NR04200GACAA heat pump system. The transformer steps down high-voltage line power (115/208/230V primary) to the 24V AC signal that powers your thermostat, contactor coil, control board, and all low-voltage safety circuits. When this transformer fails — due to a shorted control wire, overloaded secondary circuit, or age-related winding breakdown — the entire control circuit goes dead: the thermostat goes blank, the system won't respond to calls for heating or cooling, and no contactors or valves will energize. Replacing it with the correct OEM unit restores full system operation.

• Specs: 60VA capacity | Primary voltage: 115 / 208 / 230V AC | Secondary voltage: 24V AC | Foot-mounted design | OEM part number HT01AW229 (also HT01AW229A)
• OEM vs Generic: This OEM Carrier transformer is wound to exact factory VA and impedance specs, ensuring the 24V secondary holds steady under full control-circuit load. Generic transformers often run under-rated VA, causing brownout conditions that damage control boards and contactors over time.
• Install difficulty: 2/5 — Always shut off power at the breaker and verify zero voltage before disconnecting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before removal. Check for any shorted thermostat wires that caused the original failure before energizing the new transformer.
• Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH13NR04200GACAA heat pump systems. Verify your unit's data plate shows a 115/208/230V primary and 24V secondary requirement before ordering. Our parts specialists are available to confirm fitment — order with confidence and get back to comfort fast.