OEM Carrier Control Transformer 60VA 115/208/230V — HT01AW229 for Model PH10JA018000AAAA

This is the genuine OEM factory-authorized replacement control transformer for the Carrier PH10JA018000AAAA packaged unit. The transformer steps line voltage (115, 208, or 230V primary) down to a safe 24V secondary to power the low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the entire control circuit goes dead: the thermostat goes blank, the system won't respond to any call for heating or cooling, and in some cases a blown fuse or tripped breaker on the secondary may be your only warning sign.

• Specs: 60VA output | Primary: 115/208/230V multi-tap | Secondary: 24V AC | Foot-mount configuration | OEM Part# HT01AW229 / HT01AW229A
• OEM vs Generic: This is a Carrier Factory Authorized Part — not an aftermarket substitute. OEM transformers are wound and insulated to exact factory specifications, ensuring stable 24V output under full VA load. Generic units frequently underperform at rated VA, causing nuisance control board faults and premature contactor coil failure.
• Install difficulty: 3/5 — Lock out / tag out power before beginning. Tools needed: multimeter, flathead and Phillips screwdrivers, wire labels or tape. Always verify secondary voltage (should read 24–28V AC) after install before restoring load. Confirm correct primary tap wiring matches your supply voltage.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for the Carrier PH10JA018000AAAA packaged unit. Cross-references include HT01AW229A. Verify your supply voltage (115V, 208V, or 230V) matches the tap selected on your existing transformer before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your system running again.