The A/C Contactor Keeps Your System Running
The A/C Contactor Keeps Your System Running
The contactor is an electrical switch inside your outdoor A/C unit. When your thermostat calls for cooling, the contactor closes and sends power to the compressor and condenser fan motor.
Over time, heat, dirt, electrical arcing, and normal wear can damage the contactor’s contacts. A worn or stuck contactor may cause the outdoor unit to stop working, start intermittently, make chattering or buzzing sounds, or continue running when it should be off.
Ignoring a damaged contactor can place additional stress on the compressor and other electrical components. Regular A/C maintenance allows a technician to inspect the contactor, wiring, and electrical connections before a small problem becomes a costly repair.
For professional A/C maintenance and electrical diagnostics, contact Uptown Heating & Air Conditioning.
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