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This is the factory OEM replacement contactor for the Carrier GC072HERCXET1XX1 packaged or split-system unit. The contactor is a high-voltage relay controlled by a 24V signal from your thermostat or control board. When the thermostat calls for cooling, the contactor closes to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioning system won't turn on, hums without starting, or runs continuously without shutting off. Part number HN52TC040 is the exact OEM-specified replacement for this Carrier model.
Compatibility: Designed specifically for the Carrier GC072HERCXET1XX1. Verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our parts specialists are available to confirm fitment — order with confidence from NationalHVACParts.com and get your system back online fast.