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This OEM contactor is the factory-specified replacement for the Carrier PY2PPB048090AB packaged unit. The contactor acts as the high-voltage relay that controls power to the compressor and condenser fan motor. When the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the high-voltage contacts and allowing 240V to flow to the compressor. A failed contactor is one of the most common reasons an air conditioner won't turn on — symptoms include a clicking sound with no compressor start, a welded/fused contact causing the unit to run non-stop, or visible pitting and burning on the contact faces.
Compatibility: Designed for the Carrier PY2PPB048090AB packaged unit. Note that OEM part number HN52KC025 has been superseded by HN52KC024 — this listing ships the current OEM production replacement. Verify pole count, amperage, and coil voltage on your unit's data plate before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy — reach out today and we'll ship your part the same business day.