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This is the factory OEM replacement contactor (part number HN52TC040) for the Carrier GC036CBLCXET1XX1 condensing unit. The contactor is a high-voltage relay controlled by the 24V thermostat signal — when the stat calls for cooling, the contactor closes and sends line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioner won't start. Symptoms include a system that hums but never engages, visible pitting or burning on the contactor contacts, or a unit that runs continuously without cycling off due to welded contacts.
Compatibility: Designed specifically for the Carrier GC036CBLCXET1XX1 condensing unit. 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 — reach out before you buy if you have any questions. In stock and ready to ship today.