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This is the factory OEM replacement contactor (part number HN52TC040) for the Carrier GZ036SXXNXXX1XX1 condensing unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to supply line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the system will either fail to start entirely, run continuously without cycling off, or trip the breaker repeatedly. Replacing a failed contactor is one of the most common and cost-effective AC repairs available.
Compatibility: Designed as a direct OEM replacement for the Carrier GZ036SXXNXXX1XX1 condensing unit. Always verify your existing contactor's pole count, coil voltage, and amp rating against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any questions.