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Can a Lightning Strike Damage Appliances It Doesn't Hit?

Last updated October 25, 2026

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The short answer

How Lightning Surges Spread

Lightning doesn't need to strike your roof to cause damage. When a bolt hits a tree, a utility pole, or the ground nearby, the electrical energy seeks the path of least resistance. Your home's wiring, plumbing, and even the earth itself can carry that surge into your outlets and appliances.

The surge can enter through the main electrical panel, then travel along every circuit in the house. It can also jump through the ground into metal water pipes, then into appliances that use water, like washing machines or dishwashers. This is why a strike several hundred feet away can still fry your television or refrigerator.

What Happens to Your Appliances

A power surge from lightning can overwhelm the delicate electronics inside modern appliances. Circuit boards, microprocessors, and sensitive components can be damaged or completely destroyed, even if the appliance appears fine on the outside. The damage might be immediate, or it could show up days later as a device that won't turn on or behaves erratically.

  • Televisions and computers are especially vulnerable
  • Refrigerators and freezers can lose cooling function
  • Washing machines and dryers can have motor or control damage
  • Microwaves and ovens may have digital displays fail
  • HVAC systems and sump pumps can stop working
  • Phone chargers and smart home devices can be ruined

How to Protect Your Electronics

Unplugging sensitive appliances during a thunderstorm is the most reliable way to protect them. If you know a storm is coming, take a few minutes to unplug your television, computer, and other electronics. For appliances you can't easily unplug, like a refrigerator, consider installing a whole-house surge protector at your main electrical panel.

A whole-house surge protector is installed by an electrician and can help absorb the energy from a lightning strike before it reaches your outlets. It can reduce the risk, though not eliminate it. Also, check your home's grounding system; a properly grounded system helps direct surge energy safely into the earth.

Thunderstorms are not common in every region, but they do happen. Knowing how to protect your appliances can save you from costly replacements.

What to Do After a Strike

If lightning strikes nearby and you suspect damage, first check for fire or smoke. If you see or smell anything unusual, leave the house and call emergency services. If everything seems safe, inspect your appliances for signs of damage, such as blown fuses, tripped breakers, or scorched outlets.

Document any damage with photos and notes. This can help if you file a claim with your insurance company. Policies vary, and your insurer decides what is covered. Contact your insurance company to ask about coverage for surge damage; some policies cover it, others don't. Also, have a qualified electrician check your wiring if you notice any issues.

When to Call a Professional

If your appliances stop working after a nearby lightning strike, you may need help assessing the damage. A local water damage pro can inspect for secondary issues, like water damage from a fire or a burst pipe caused by the surge. They can also help with cleanup if a surge caused a fire or flooding.

  • Unplug devices before the storm hits
  • Install a whole-house surge protector
  • Check for smoke or fire immediately after a strike
  • Document all damage for your insurance claim
  • Call an electrician for wiring issues
  • Contact the pros for water damage cleanup

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Frequently asked questions

Can a lightning strike damage appliances that are turned off?

Yes, a surge can still damage appliances that are turned off. The electrical energy travels through the wiring and can harm internal components even if the device isn't running. Surge protectors may help, but unplugging is the safest option during a storm.

Do surge protectors fully protect against lightning?

Surge protectors can help, but they are not foolproof. A direct or very close lightning strike can overwhelm even a high-quality surge protector. For better protection, consider a whole-house surge protector installed by an electrician, and unplug sensitive devices during severe storms.

What should I do if my appliances are damaged by lightning?

First, ensure your home is safe, then document the damage with photos. Contact your insurance company to ask about coverage, as policies vary. Have an electrician inspect your wiring, and if there's water damage, call the pros to dry and restore your home.

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