OEM Carrier Control Transformer 60VA 115/208/230V-24V for Model PH13NR048000AAAA

This is the factory OEM control transformer for the Carrier PH13NR048000AAAA heat pump. The transformer steps down high-voltage line power (115, 208, or 230V primary) to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When this component fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any call for heating or cooling, and there may be a tripped circuit breaker or blown fuse on the secondary side. Replacing the transformer is one of the most impactful single-part repairs you can make to restore full system operation.

• Specs: 60VA power rating | 115/208/230V AC primary | 24V AC secondary | 50/60 Hz | Foot-mount configuration | OEM part number HT01AW229 (also crosses to HT01AW229A)
• OEM vs Generic: This factory-authorized Carrier transformer is wound to exact VA and voltage tolerances. Undersized or off-spec generic transformers are a leading cause of repeated contactor coil burnout and nuisance board resets — the OEM unit eliminates that risk.
• Install difficulty: 2/5 — Shut off power at the disconnect and verify voltage is absent before touching any wiring. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Photograph all primary and secondary wire connections before disconnecting. Secondary fuse (if present) should be inspected and replaced if blown.
• Warranty: 1-year OEM factory warranty against defects. Orders ship same business day from our HVAC-dedicated warehouse.

Compatibility: Fits Carrier model PH13NR048000AAAA heat pump. The dual primary taps (115/208/230V) make this transformer versatile across single- and multi-voltage installations. Always verify your unit's data plate primary voltage before wiring. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you order — contact us today.