OEM Carrier Control Transformer 60VA 115/208/230V — HT01AW229 for Model PH13NR042000AHAA

This OEM Carrier control transformer (part number HT01AW229) is the factory-specified replacement for the Carrier PH13NR042000AHAA heat pump system. The control transformer steps down line voltage (115, 208, or 230V primary) to a safe 24V secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, reversing valve, and control board. When this transformer fails, the result is typically a completely unresponsive system: the thermostat goes dark, the contactor won't energize, and no heating or cooling is possible.

• Specs: 60 VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | Foot-mount configuration | 50/60 Hz | Replaces HT01AW229A
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP), manufactured to exact VA and voltage tolerances. Generic transformers often underperform at rated load, causing nuisance brownouts in the control circuit and premature board failures.
• Install difficulty: 3/5 — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (to confirm 24V output after install), needle-nose pliers for spade terminals. Note the primary tap wiring (115V vs 208/230V) on the original unit before disconnecting — incorrect tap selection will damage downstream components.
• Warranty: 1-year OEM factory warranty. Ships same business day from our stocked warehouse.

Compatibility: Designed as the direct OEM replacement for the Carrier PH13NR042000AHAA heat pump. Also cross-references part numbers HT01AW229A, CIN-TRAN, 30-BV2006, and 30-1814A. Verify your unit's data plate voltage and VA requirements before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — call or chat today. In stock and ships the same business day.