OEM Carrier Control Transformer 60VA 115/208/230V for Model PH10JA01800GAEAA

This is the genuine OEM Carrier control transformer (part #HT01AW229) factory-specified for the Carrier PH10JA01800GAEAA packaged unit. The control transformer steps down the high-voltage supply (115/208/230V primary) to the 24V AC signal required to power the thermostat circuit, control board, contactor coil, and all low-voltage control functions. When this transformer fails, the entire low-voltage control circuit goes dead — the thermostat goes blank, the system will not respond to any call for heating or cooling, and no fault codes will appear because the board itself has lost power.

• Specs: 60VA capacity | Primary: 115/208/230V AC | Secondary: 24V AC | Foot-mount chassis | OEM part number HT01AW229 (also listed as HT01AW229A)
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part built to exact VA, voltage, and thermal protection specifications. Generic transformers with undersized VA ratings are prone to overheating and nuisance shutdowns — especially in systems with multiple 24V accessories like zone boards, humidifiers, or UV lights.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 0V before touching terminals). Label all 24V wiring before disconnecting. Verify incoming line voltage matches the transformer primary tap in use.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for Carrier model PH10JA01800GAEAA. Verify your unit's data plate shows a 115/208/230V primary supply and 24V secondary control circuit before ordering. Our technical team is available to confirm fitment prior to purchase — same-day shipping on all in-stock orders.