OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH13NR03600GAAAA

This is the factory-authorized OEM control transformer (part number HT01AW229) for the Carrier PH13NR03600GAAAA packaged heat pump unit. The transformer steps down 115/208/230V line voltage to the 24V signal that powers the control board, thermostat circuit, and every relay and contactor coil in the system. When this transformer fails, the entire control circuit goes dark — the thermostat displays nothing, contactors won't energize, and the unit will not respond to any call for heating or cooling. A failed transformer is one of the most common causes of a completely unresponsive HVAC system.

• Specs: 60 VA power rating | 115/208/230 VAC primary (multi-tap) | 24 VAC secondary | 50/60 Hz | Foot-mount configuration | OEM part number HT01AW229 / HT01AW229A
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part built to exact VA and voltage tolerance specifications. Generic transformers are often under-rated for VA load, which causes premature thermal cutout tripping and repeated control circuit failures — particularly on larger packaged units like the PH13NR03600GAAAA that carry higher 24V control loads.
• Install difficulty: 2/5 — Shut off all power at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to confirm 24V output after install). Photograph all wiring connections before disconnecting. Verify primary tap selection (115V vs. 208/230V) matches your supply voltage.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before 3 PM ship same business day from our warehouse.

Compatibility: Engineered for the Carrier PH13NR03600GAAAA packaged heat pump. Also cross-references as HT01AW229A. Confirm your unit's supply voltage and existing transformer VA rating on the data plate before ordering. Our HVAC specialists are available to verify fitment — contact us before you order if you have any questions.