OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH13NR030000ACAA

This is the factory-authorized OEM replacement control transformer (part number HT01AW229) for the Carrier PH13NR030000ACAA heat pump system. The control transformer steps down the 115/208/230V line voltage to the 24V AC signal that powers your thermostat, contactor coil, and all control circuit components. When the transformer fails, the entire control circuit goes dead — your thermostat will go blank, the system will be completely unresponsive, and no heating or cooling operation will occur. This is often mistaken for a control board failure, making correct diagnosis critical before replacement.

• Specs: 60 VA power rating | 115/208/230 VAC primary | 24 VAC secondary | 50/60 Hz | Foot-mounted configuration | OEM part number HT01AW229 / HT01AW229A
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP). OEM transformers are wound and insulated to exact factory VA and voltage tolerances, protecting sensitive control boards from voltage fluctuations. Generic units often run under-spec VA ratings, causing nuisance trips and premature board failures.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify 24V output after installation). Label or photograph all low-voltage wiring before disconnecting. The foot-mount bracket secures to the chassis — do not overtighten mounting screws.
• Warranty: 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for the Carrier PH13NR030000ACAA heat pump. Also cross-references as HT01AW229A and is compatible with select Bryant and Payne units sharing the same 60VA 115/208/230V–24V transformer specification — verify your unit's data plate voltage and VA rating before ordering. Our parts specialists are available to confirm fitment before you buy.