Light Switch Not Working

Light switch stopped working? Learn common causes, safe DIY checks, and electrician costs ($100–$250). Safety tips included.

Typical repair cost: $100–$250 · DIY difficulty: Moderate · About 15–30 minutes.

What usually causes it

  • Tripped circuit breaker
  • Burned-out bulb
  • Loose wire connection
  • Faulty switch
  • Wiring issue

What you need

  • Voltage tester
  • Screwdriver
  • Replacement switch

How to fix it yourself

  1. Check if the light bulb is burned out — try a new bulb
  2. Check the circuit breaker panel for a tripped breaker
  3. If breaker is fine, turn OFF the breaker for that circuit
  4. Remove the switch plate and test for voltage with a tester
  5. If no voltage and breaker is on, the issue may be in wiring — call an electrician
  6. If switch is faulty, replace it (match the wiring type)

When to call a pro

Always hire a licensed electrician for wiring issues. If you're unsure about any electrical work, don't risk it.

Keep reading

What it costs

Before you call a pro

Common problems

Questions answered

Terms worth knowing

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