Electrical
Lights flickering or dimming, especially when appliances turn on
Likely cause, what to safely try first, and whether it gets worse if you wait.
Likely cause
A loose connection at the fixture/panel, or a shared neutral overloaded by a large appliance.
What to try first
- Note whether it happens house-wide or just in one room — house-wide flickering when large appliances start is worth a same-week electrician visit, not an emergency.
- Check if the bulb itself is loose or a cheap dimmable LED not rated for your dimmer switch before assuming a wiring fault.
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