Short answer
If lights flicker in only one fixture, it is usually the bulb, fixture or switch. If they flicker throughout the house, especially when large appliances start, the cause may be a loose neutral, a failing main breaker or a utility service problem. Whole-house flicker should be checked promptly, and call the utility if lights go very bright and dim.
One fixture
Try a different bulb; LED dimmer compatibility is common.
When appliances start
A brief dim when the AC starts can be normal; large dips are not.
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Loose connections at the meter, panel or utility drop.
Urgent signs
Lights very bright then dim, burning smells, warm panel.
- Call the utility for service-side issues
- Call an electrician for panel issues
Related questions
Can a loose neutral damage appliances?
Yes. Voltage swings can damage electronics.
Who fixes the meter connection?
The utility handles their side; an electrician handles the meter base and panel.
Services that fix this
Residential Electrical Troubleshooting
Dead outlets, partial power loss, flickering lights and faults that come and go.
Electrical troubleshooting in Summerville
Emergency Electrician
Burning smells, sparking, hot panels, partial power loss and storm damage to electrical service.
Emergency electrician in SummervilleThis guide is general information for homeowners, not a diagnosis of your system. For anything involving gas, carbon monoxide, electricity or active leaks, stop and call a qualified professional.
