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This OEM contactor (part number HN52KC025) is the factory-specified high-voltage relay for the Carrier PY1PPB048090NBAA packaged unit. The contactor acts as the primary electrical switch that routes high-voltage power to the compressor and condenser fan motor each time the thermostat calls for cooling. A failed contactor is one of the most common reasons an AC system will not start — symptoms include a system that hums but won't engage, burned or pitted contact points, or a unit that runs continuously and won't shut off due to welded contacts.
Compatibility: Engineered for the Carrier PY1PPB048090NBAA packaged gas/electric unit. Cross-reference your existing part number or the data plate on your unit before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — call or chat today and we'll get your system back up fast.