OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH14NA018000AAAA

This is the factory-authorized OEM replacement control transformer for the Carrier PH14NA018000AAAA heat pump. The transformer steps down the 115/208/230V line-voltage supply to the 24VAC signal voltage that powers your thermostat, contactor coil, reversing valve, and all low-voltage control logic. When this component fails, the entire 24V control circuit goes dead — resulting in a completely unresponsive thermostat, a system that won't start in any mode, or a tripped secondary fuse with no obvious cause. Replacing the transformer with this exact OEM part restores proper control voltage and protects every downstream component.

• Specs: 60VA 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 Factory Authorized Part is wound to exact Carrier tolerances, ensuring stable 24V output under full load. Generic transformers can sag under load, causing intermittent lockouts and premature contactor coil failure.
• 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). Always label low-voltage wires before disconnecting. Confirm primary tap 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 Carrier model PH14NA018000AAAA heat pumps. Cross-references include HT01AW229A. Verify your unit's supply voltage before selecting the primary tap. Questions about fitment? Our HVAC parts specialists confirm compatibility before you order — contact us today.