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This is the factory-specified OEM replacement contactor (part number HN52TC040) for the Carrier GC036HELCXET1XX1 condensing unit. The contactor is the high-voltage switching relay that receives a 24V signal from the thermostat and closes the circuit to energize 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 refuse to start entirely, run continuously without shutting off, or trip the breaker repeatedly. Replacing a worn contactor is one of the most cost-effective repairs in residential HVAC service.
Compatibility: Designed and tested specifically for the Carrier GC036HELCXET1XX1 condensing unit. Always confirm the part number on your existing contactor's label and verify coil voltage and pole configuration match your unit's wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us anytime.