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This OEM control transformer is the factory-specified replacement for the Carrier PH13PR060000AEAA packaged heat pump unit. The transformer steps down the 115/208/230V line voltage to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, reversing valve, and defrost board. When this transformer fails, the entire control system goes dark: the thermostat loses power, the unit refuses to start, and no fault codes are displayed. A failed transformer is often mistaken for a board failure, making correct diagnosis critical before replacing more expensive components.
Compatibility: Factory-matched replacement for Carrier model PH13PR060000AEAA packaged heat pump. Cross-references include HT01AW229A. Confirm your unit's supply voltage before selecting the correct primary tap. For fitment questions, our HVAC parts specialists are available to verify compatibility before you order — no guesswork required.