OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH13NB02400GAAAA

This is the genuine OEM Carrier replacement transformer (part number HT01AW229) factory-specified for the Carrier PH13NB02400GAAAA heat pump system. The control transformer steps down high-voltage line power (115/208/230V primary) to the 24V AC signal that powers your thermostat circuit, contactor coil, and every downstream control component. When this transformer fails, the entire control circuit goes dark — the thermostat loses power, the system won't respond to calls for heating or cooling, and nothing operates. A blown fuse on the secondary side or a visibly burnt transformer are the most common indicators of failure.

• Specs: 60VA capacity | Primary: 115/208/230V AC | Secondary: 24V AC | Foot-mounted configuration | OEM part number HT01AW229 (also referenced as HT01AW229A)
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, built to exact VA and voltage tolerances. Generic transformers often run at reduced VA ratings, causing nuisance tripping or premature failure under normal HVAC control-circuit loads.
• Install difficulty: 2/5 — Always disconnect power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label and photograph all low-voltage wiring before disconnecting. Discharge any capacitors in the system before working in the control compartment.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH13NB02400GAAAA. Always verify your unit's data plate voltage configuration before ordering — this transformer supports multi-tap 115/208/230V primary inputs, making it suitable across a wide range of install configurations. Questions about fitment? Our HVAC parts specialists verify compatibility before every order.