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This is the factory-specified OEM contactor (part number HN52TC040) for the Carrier GC024HELCDET1XX1 system. The contactor is a high-voltage relay that acts as the primary switching device between the thermostat's 24V control signal and the high-voltage power supply to the compressor and condenser fan motor. When the thermostat calls for cooling, the 24V coil energizes and closes the contacts, allowing line voltage to flow. A failed contactor typically presents as an air conditioning system that won't turn on at all, chatters loudly, runs continuously without shutting off, or causes intermittent compressor dropouts — especially under high-load summer conditions when pitted or burned contacts can no longer carry full amperage.
Compatibility: Engineered specifically for the Carrier GC024HELCDET1XX1. Verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — order with confidence and get your system back online fast. In stock and ships today.