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This OEM replacement contactor is the factory-specified part for the Carrier C4850C50Z3040600 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat or control board and closes the circuit to energize the compressor and condenser fan motor. When the contactor fails, the system will either not respond to a cooling call at all, run continuously without shutting off, or produce an audible clicking or buzzing at the unit with no compressor startup. Replaces OEM part numbers HN53CB115 and HN53HF122.
Compatibility: Designed for the Carrier C4850C50Z3040600 packaged unit. Verify coil voltage and pole configuration on your unit's data plate or existing contactor before ordering. This listing covers OEM part numbers HN53CB115 and HN53HF122 — both are direct replacements for this model. Our parts specialists are available to confirm fitment before you order.