What causes a light switch to stop working but light stays on?
A light that stays on when you flip the switch usually means the switch failed closed or the light is wired to constant power. Loose or miswired connections can bypass the switch. Smart or dimmer switches can stick on. In 3-way circuits, a miswired traveler can keep power on. We offer same-day troubleshooting and repair in Rochester-area homes.
- If the switch is warm or crackling, turn off the breaker.
Updated: 2025-11-05 00:00:00
Need help in Mendon, NY? Call (585) 494-7000 or book online. "He found the problem very quickly and had it rectified in no time." — John F.
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