Comfortmaker
High Inrush Current / Electrical Overload
Comfortmaker air conditioner causes lights to dim or breaker to trip when starting
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Weak breaker or undersized wiring, Failing compressor drawing high start current, No soft-start device on large compressor, Loose electrical connections
How to Fix / Troubleshooting
Safety: Electrical work should be done by qualified personnel. Turn off main power before tightening lugs.
Steps:
- Check breaker size: Compare Comfortmaker nameplate MCA/MOP to installed breaker. Correct if undersized.
- Tighten connections: Tighten lugs at breaker, disconnect, and contactor.
- Consider hard-start kit: Have a technician install a manufacturer-approved hard-start kit if compressor is hard-starting.
Note: Frequent breaker trips may indicate a failing compressor or wiring issue requiring professional diagnosis.
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Repair Difficulty
Hard
4/5
Required Part
Compressor and Branch Circuit Breaker
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