What causes a light switch to stop working but light stays on?
A light can stay on when the switch is off if the switch contacts are stuck closed, the wiring bypasses the switch, or a 3-way/smart switch is miswired. In many Mountainside, NJ homes, we also find backstabbed connections that fused, or a failed smart-switch relay keeping the load energized. Our licensed electricians diagnose and correct these safely and fast.
Quick checks:
- Turn off the breaker and verify power is off with a tester.
- Do not work on live circuits.
- Call a licensed electrician (Electrical License: 34EB00790200).
Updated: 2025-11-07
Need help in Ozone Park, NY? Call (866) 477-7326 or book online.
Sources
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