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This is the OEM replacement contactor for the Payne PA10JA030000AGAA split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send 240V power to the compressor and condenser fan motor. When the contactor fails — due to burned or pitted contacts, a stuck plunger, or a failed coil — the outdoor unit will not energize at all, or may run continuously without responding to the thermostat. This OEM part (HN51KC024) is the factory-specified replacement, ensuring correct coil voltage, amperage rating, and contact quality right out of the box.
Compatibility: Designed for the Payne PA10JA030000AGAA split-system condenser. Verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before your order ships — no guesswork required.