OEM Carrier Control Transformer 60VA 115/208/230V — HT01AW229 for Model PH13NB04200GAAAA

This is the factory OEM replacement control transformer for the Carrier PH13NB04200GAAAA packaged heat pump unit. The transformer steps down line voltage (115, 208, or 230V primary) to the 24V AC signal that powers your thermostat, control board, contactor coil, and all low-voltage safety circuits. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to calls for heating or cooling, and no fault codes will display. Replacing it restores full system operation.

• Specs: 60 VA rating | Primary voltage: 115 / 208 / 230 VAC | Secondary voltage: 24 VAC | Foot-mount configuration | OEM part number: HT01AW229
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part built to exact VA rating and insulation class tolerances. Undersized or off-brand transformers can overheat under full control-circuit load, causing nuisance tripping or premature failure of the control board.
• Install difficulty: 2/5 — De-energize the unit at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 24V output after install). Label all low-voltage wires before disconnecting; the transformer mounts via foot bracket and terminals are typically screw-type.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PH13NB04200GAAAA packaged heat pump. Verify your unit's data plate confirms a 60 VA, 115/208/230V primary transformer requirement before ordering. Our fitment team is available to confirm compatibility prior to purchase — reach out before you order if unsure.