OEM Carrier Transformer 60VA 115/208/230V — HT01AW229 for Model PH12NA06000GAGAA

This is the factory-authorized OEM control transformer for the Carrier PH12NA06000GAGAA packaged heat pump unit. The transformer steps down the 115/208/230V line voltage to a 24V secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and all safety controls. When this transformer fails, the result is a completely unresponsive system: the thermostat goes dead, the contactor won't energize, and the unit will not start in any mode. A blown transformer fuse or a shorted secondary winding are the most common failure signatures.

• Specs: 60 VA rating | Primary voltage: 115 / 208 / 230 VAC | Secondary voltage: 24V | Foot-mounted configuration | OEM Part # HT01AW229 / HT01AW229A
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part engineered to exact VA and impedance specifications. Generic transformers often under-rate VA capacity, causing thermal overload and repeat failures — especially under full control-circuit load on multi-stage packaged units.
• 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 24V wiring before disconnecting from secondary terminals. A blown fuse on the secondary is a sign of a downstream short — always diagnose the control circuit before installing a new transformer.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed as the direct OEM replacement for Carrier PH12NA06000GAGAA packaged heat pump units. Verify your unit's data plate primary voltage tap (115V, 208V, or 230V) matches your supply voltage before installing. Cross-references: HT01AW229A. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you order — reach out before purchasing if unsure.