Ceiling light won't turn on

Symptoms

• Switch flips but the ceiling fixture stays dark
• Other lights and outlets in the room work fine
• Fixture may have multiple bulbs, all out at once

Likely causes

• PossibleAll bulbs burned out at onceRare, but bulbs installed at the same time can fail close together, especially cheap ones.
• CommonA failed switchThe switch controlling the fixture may have failed even though power reaches the box.
• CommonA loose wire connection inside the fixture canopyFixture wiring can loosen from installation vibration or age.
• PossibleA tripped breaker for that circuitWorth checking even if other things in the room seem to work, since wiring layouts vary.

What to do

1. Replace all bulbs with ones known to work.
2. Check the breaker panel for a tripped breaker.
3. Test the switch for a loose feel or lack of a clear click.
4. Turn off the breaker and confirm it's dead with a voltage tester before opening the fixture.
5. Remove the fixture canopy and check that wire nuts are tight and wires aren't corroded.
6. Reconnect any loose wires and test the fixture.
7. Replace the switch or fixture if the problem persists after checking connections.

Tools and parts

• Non-contact voltage tester
• Step ladder

When to call a pro

Call an electrician if wiring in the ceiling box looks damaged, or the fixture stays dead after checking bulbs, switch, and connections.

Safety