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This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier HP13PR06000GAKAA heat pump. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to energize the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a welded coil, or worn contact tips — the outdoor unit will not respond when cooling or heating is called for, even though the indoor air handler continues to run normally.
Compatibility: Designed as a direct OEM replacement for the Carrier HP13PR06000GAKAA heat pump. Always verify the coil voltage and pole configuration on your existing contactor's label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.