Tingling in the water or sparks? Get everyone out, power off at the breaker if safe & call 911 if anyone is hurt.
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Troubleshooting guide

Pool light, GFCI or electrical problem

Electricity and pool water don't mix. Some electrical problems can be dangerous for anyone in the water, so this guide is about staying safe, not DIY repair.

Last updated · Reviewed by the Pool Helpline tech team

If someone feels a shock in the water

Turn off all power and call 911. CPSC says to turn off all power right away, because rescuers can become victims if it stays on. If you feel a shock yourself, move away from the source and get out, without using a metal ladder if you can. Swimmers may feel tingling, muscle cramps, or be unable to move.

Warning signs to take seriously

  • A tingle or shock in the water or from a ladder or rail.
  • Underwater lights that flicker, dim, or come on when they shouldn't (CPSC lists lights not working properly as a warning sign).
  • A GFCI or breaker for the pool that trips again right after you reset it.
  • Water or fog inside a pool light lens.

If you see any of these, keep everyone out of the water, leave the circuit off, and call a licensed electrician.

What you can do

  • Test GFCIs as your equipment manuals say (press TEST, then RESET). Don't reset one that trips again immediately.
  • Keep cords, extension cords and electrical products away from the water.
  • Note when the problem happens: with the light on, when the pump or heater starts, after rain. That pattern helps an electrician.

How a video call helps

We won't walk you through wiring, light niches or panel work. A tech can help you describe what you're seeing, check the non-electrical equipment (with the power off), and help you find a licensed electrician or pool pro near you.

Common questions

Why does my pool light keep tripping the GFCI?

Often water has gotten into the light fixture or its connections, but it needs an electrician to confirm. Leave the circuit off and keep everyone out of the water until it's checked.

What should I do if I feel tingling in my pool?

Get out of the water right away, ideally without touching a metal ladder, and keep everyone else out. Turn off power to the pool equipment and lights at the breaker and call a licensed electrician. If someone is hurt or can't move, turn off all power and call 911.

Can I change a pool light bulb myself?

Pool lights sit in the water and run on circuits that need GFCI protection. We recommend a licensed electrician or pool pro for any light work.

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Sources

Brand names belong to their owners. Pool Helpline isn't affiliated with or endorsed by any manufacturer. Steps and codes vary by model and year, so always check your own owner's manual.

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