Said It Here

Light switch sparks and won't stay on

A light switch that sparks and only stays on when flipped very gradually points to a failing internal mechanism or loose wire. This makes normal use a genuine hazard that prevents safe operation of the lights until the switch is replaced or repaired.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Flipping the switch very gradually
  2. 2
    Turning off the circuit breaker until the switch is replaced

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/askanelectrician2 people · September 2026

“When I flip the light switch, there's a burst of light, then they go out again.”source ↗

“The lights DO stay on if I very gradually flip the switch, but I'd still like to fix the problem.”source ↗

Adze95 · r/askanelectrician · 1 upvotes

“The cleaning lady was wiping around this light switch and it sparked up. Twice.”source ↗

“I'm understandably a bit worried.”source ↗

CT_Collins97 · r/askanelectrician

Where this came up

People with this problem also raised