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This is the factory-specified OEM replacement contactor for the Carrier C48A304061 packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat. When you call for cooling, the thermostat energizes the contactor coil, closing the high-voltage contacts that send power to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioner won't turn on — symptoms include no response to a cooling call, chattering or buzzing at the contactor, or burned/pitted contact points that prevent the unit from starting. Replaces OEM part numbers HN53CB115 and HN53HF122.
Compatibility: Designed for the Carrier C48A304061 packaged unit. Cross-references OEM part numbers HN53CB115 and HN53HF122. Verify coil voltage and pole configuration against your unit's data plate and wiring diagram before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping on all in-stock orders.