/Hurricane-Consequences

Electronics Recovery and Repair After a Surge

Fix power surges damaging electronics and safeguard your devices. Discover common causes and proven solutions today.

Reviewed by Content Team

Head of Content, D. Gorenko

Updated June, 5

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How to Fix Power surges damaging electronics

 

Immediate Steps to Take

 
  • Unplug all sensitive electronics immediately to prevent further damage.
  • If you suspect a surge is still occurring, turn off your main circuit breaker to isolate your home’s electrical system.
  • Check for signs of damage such as burnt smells, charring, or abnormal sounds. If anything looks hazardous, leave it alone and contact a professional immediately.

 

Tools and Materials Needed

 
  • A surge protector or whole-house surge protection system.
  • Electrical testing tools (voltmeter or multimeter) to check electricity levels in outlets.
  • Basic hand tools (screwdrivers, pliers) if minor repairs or installations are necessary.
  • Protective equipment such as insulated gloves and safety goggles.

 

Homeowner vs. Professional Repairs

 
  • If you have basic electrical skills and the problem seems isolated to one or two outlets or devices, you may be able to replace surge protectors or reset circuit breakers on your own.
  • However, if the surge has caused extensive damage across multiple circuits, or if you suspect faults in your home’s wiring, it is safest to call an electrician. Making an error in such cases can lead to further damage or personal injury.

 

Which Professional to Contact

 
  • An electrician is the relevant professional to address issues associated with power surges and to install whole-house surge protection systems.
  • If you reside in St. Louis or Nashville, contacting a full-service residential & commercial provider like Hoffman Brothers can help ensure a comprehensive review and repair of your electrical systems.

 

Safety Warnings and Insurance Tips

 
  • Always turn off power at the breaker before touching any electrical equipment to avoid shock or electrocution.
  • If you notice any burning smells, sparks, or smoke, evacuate the area immediately and call your local emergency services.
  • Document any accidental damage with photos and written notes. This documentation can be useful when filing an insurance claim.
  • Review your homeowner’s insurance policy to determine if it covers damage from power surges and consider adding surge protection coverage if it does not.

 

Step-by-Step Guide Recap for Fixing Power Surges

 
  • Disconnect all at-risk electronics right away.
  • Reset your circuit breaker if it is safe to do so.
  • Inspect your outlets and devices for any visible damage.
  • Use a voltmeter or multimeter to check for anomalies in your home’s electrical system.
  • If you find issues beyond a simple surge, call an electrician immediately.
  • Consider upgrading your system with quality surge protectors or a whole-house surge protector installed by a professional.
  • Always take necessary safety precautions and document your home’s condition for insurance purposes.

What Could be Causing Power surges damaging electronics

 
Lightning Strikes
 

One major cause of power surges is lightning strikes. When lightning hits, nearby power lines experience a sudden spike in energy. This power spike travels through the wiring and reaches your home, where it can damage delicate electronic equipment. Even if lightning does not hit your property directly, a strike on nearby infrastructure can cause a surge that ripples into your electrical system.

 
Utility Switching & Transformer Issues
 

Another reason for power surges is the switching activities of utility companies. When there is a change in load or during routine maintenance, utilities may switch between power sources or adjust transformer outputs. These actions can create temporary but significant voltage spikes. In cities like St Louis and Nashville, where the power grid experiences high demand, these events can be more frequent and cause additional stress on the local system.

 
Faulty Wiring and Installation Errors
 

Improper wiring or installation errors in a home or building can also lead to power surges. Loose connections, degraded wiring insulation, or outdated electrical panels create conditions where voltage may fluctuate unexpectedly. These issues are not always visible and may build up stress on the system until a surge occurs, which then damages connected electronics.

 
Appliance and Equipment Malfunctions
 

The operation of large appliances and industrial equipment can trigger surges. When these devices cycle on and off, they create sudden changes in current flow. This can send shock waves through the wiring. Such surges are common in homes with older or malfunctioning appliances that intermittently draw excessive current.

 
Environmental and External Factors
 

Other factors include tree branches interfering with power lines, falling debris, or even animals chewing on cables. These external disturbances can disrupt the stable operation of power lines, allowing surges to happen. In regions with harsh weather, such as windstorms or heavy rains, these risks are increased.

 
Issues with Grounding
 

Good grounding is essential for absorbing unwanted electrical surges. Poorly grounded systems are unable to divert excess energy safely, which means more of the surge is directed into your home’s wiring. A grounding issue might not be obvious until an unexpected surge occurs, damaging devices that are not protected.

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