OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH10JA036000AAAA

This is the factory-authorized OEM control transformer for the Carrier PH10JA036000AAAA packaged heat pump unit. The transformer steps down line voltage (115, 208, or 230V primary) to the 24V AC signal that powers your thermostat, contactor coil, control board, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — you'll see no thermostat response, no contactor pull-in, and no system operation whatsoever. A failed transformer is often caused by a shorted control wire, so always inspect low-voltage wiring before installing the replacement.

• Specs: 60 VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | 50/60 Hz | Foot-mount configuration | OEM part number HT01AW229
• OEM vs Generic: This is a genuine Factory Authorized Part built to Carrier's exact VA rating and insulation class. Generic transformers often use undersized windings that run hot under full load, leading to premature failure and potential control board damage from voltage sag.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install and to check for shorted low-voltage wiring before energizing). Always label wire connections before disconnecting the old transformer.
• Warranty: 1-year OEM factory warranty on parts. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH10JA036000AAAA packaged heat pump units. The multi-tap primary (115/208/230V) makes this transformer compatible across a range of Carrier, Bryant, and Payne equipment sharing the HT01AW229 specification — always verify your unit's data plate voltage and VA requirements before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — in stock and ships today.