Possible causes
- Failed switch
- Loose connection
- Dimmer mismatch
- Fixture issue
- Circuit fault
Safe checks before you call
- Stop using a switch that is hot, buzzing, sparking or discolored.
- Try a different bulb only if the fixture and switch appear normal.
- Do not remove the switch plate to inspect wiring.
Professional assessment: Switch issues should be evaluated before installing smart controls or higher-load fixtures.
When it may be urgent
Call quickly when a switch is hot, sparks, smells unusual or controls a critical room.
FAQs
Can a light switch wear out?
Yes. Switches can fail over time, but wiring and fixture conditions should also be considered.
Can a smart switch replace any switch?
No. Smart switches often have specific wiring and load requirements.