OEM Carrier 60VA Control Transformer HT01AW229 for Model PH13NR03000GAEAA

The Carrier HT01AW229 is the factory-specified OEM control transformer for the PH13NR03000GAEAA heat pump system. This transformer steps down the high-voltage primary supply (115/208/230 VAC) to the 24 VAC signal voltage that powers the entire control circuit — including the thermostat, contactor coil, reversing valve, and control board. When this transformer fails, the result is a completely unresponsive system: the thermostat goes blank, no relays energize, and nothing turns on. A failed transformer is often caused by a shorted low-voltage wire or a failed component that draws excess current through the secondary winding.

• Specs: 60 VA power rating | Primary voltage: 115/208/230 VAC (multi-tap) | Secondary voltage: 24 VAC | 50/60 Hz rated | Foot-mount configuration | OEM part number: HT01AW229
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part built to exact OEM tolerances. Generic transformers often use undersized windings that run hot under load, shortening service life and risking repeat failure. The OEM unit provides the correct VA headroom for your system's full control circuit load.
• Install difficulty: 3/5 — Disconnect all power before starting. Tools needed: multimeter (verify output voltage after install), flathead and Phillips screwdrivers, wire stripper, wire nuts. Always check low-voltage wiring for shorts before energizing — a shorted 24V circuit is the #1 cause of transformer burnout. If the replacement blows immediately, a shorted wire or component is present.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for Carrier model PH13NR03000GAEAA. Also cross-references as HT01AW229A. Verify your unit's data plate voltage rating before ordering to confirm primary tap match (115V, 208V, or 230V). Have a question about fitment? Our HVAC parts specialists verify compatibility before you order — contact us today and get your system back online fast.