What causes a power surge in the fridge?

Author: Korbin Jacobi DVM  |  Last update: Tuesday, November 18, 2025

Refrigerators, air conditioners and other appliances can cause surges when they're switched on. This type of problem happens most often when your home has faulty wiring. Tripped circuit breakers and short circuits can also create spikes in current. This kind of internal surge is powerful enough to cause damage.

How do I stop my refrigerator from power surge?

The surge protector is the best option. The unit shutting down due to power outages is not really the big issue it is the surge from restarting. By having the surge protector it will help to keep the spike away. As for disconnecting the power or turning it off so the compressor is not running.

What is the most common cause of power surges?

NEMA estimates that 60% to 80% of surges are created within a facility, such as when large appliances (e.g., air conditioners) turn on and off. This switching creates sudden, brief demands for power, which upset the steady voltage flow in the electrical system and causes repetitive surges.

Can a fridge be repaired after a power surge?

The control board is the most sensitive component in the refrigerator. Therefore, it is easily damaged when a surge of electrical current creates excessive heat. Refrigerators with a damaged control board can often be repaired, as the board is relatively inexpensive and easy to replace on its own.

Why is my fridge giving me electric shock?

Generally, it is due to leakage current and it indicates that your domestic electrical system is not properly earthed. Check earthing of fridge (ie relay/ compressor etc. associated with this fridge), earthing of plug points and finally earthing of domestic power lines and earthing pit.

Can a power outage damage a fridge?

Why does my fridge cause a power surge?

Refrigerators, air conditioners and other appliances can cause surges when they're switched on. This type of problem happens most often when your home has faulty wiring. Tripped circuit breakers and short circuits can also create spikes in current. This kind of internal surge is powerful enough to cause damage.

How to stop a fridge from shocking?

1 Check if there is water leakage from the fridge or from a different source. 2 Make sure that the refrigerator is grounded. The refrigerator can accumulate static electricity on its surface and can shock if someone touches its metal part.

How do you reset a refrigerator after a power surge?

Reset your refrigerator: First, unplug it (or turn off the power at the circuit breaker), and then wait about five minutes for the electrical charge to clear out of it. Then, power it back on again.

Who pays when a power surge ruined your appliances?

Homeowners insurance may cover damage to your home and belongings caused by a power surge, up to your policy's limits. Whether or not the damage is covered may vary based on what caused the surge.

What makes a fridge trip electricity?

Overloaded Circuit: The most common reason for a fridge tripping the lights is an overloaded circuit. If your fridge is connected to a circuit with too many other appliances or devices, it can cause the circuit to trip, resulting in a loss of power.

Should I worry about power surges?

Power surges can damage appliances if they are plugged in. They can also cause damage to power outlets. Homeowner's insurance may not cover damage caused by a power outage. You may want to consider an extended warranty for appliances that can cover damages caused by power outages.

How can I stop power surges?

Using point-of-use surge protection devices, especially when combined with a reliable grounding system, will protect electrical devices and appliances from all but the most severe power surges. Plus, you can also use special wall outlets that offer additional surge protection.

Can a bad breaker cause power surges?

A bad breaker can indeed cause low voltage or power surges in your home. A malfunctioning breaker may not be able to regulate the flow of electricity properly, leading to voltage fluctuations and potential damage to your appliances and electronics.

What appliances should not be plugged into a surge protector?

6 things you shouldn't plug into a power strip By: Corporate Editorial Team
  • Microwave oven. Microwaves demand more power than a power strip can provide, so they typically require their own dedicated outlet.
  • Toasters. ...
  • Hair dryers. ...
  • Slow cooker. ...
  • Space heater. ...
  • Coffee maker.

Why does my refrigerator trip the breaker when plugged in?

Overloaded Circuits: Plugging multiple high-demand appliances into the same circuit can exceed its capacity, causing the breaker to trip. Short Circuits: A neutral wire contacting a ground wire can create a short circuit, leading to immediate breaker trips when the fridge is plugged in.

How to tell if a power surge happened?

Flickering, Buzzing, or Dimming Lights

If your lights flicker or dim without a clear cause, it might be a sign of a power surge. Buzzing sounds are another red flag.

How do you prove surge damage?

An expert familiar with the claimed equipment can perform tests and confirm whether it has sustained damage from a high voltage surge. Though this cause of loss is common, it's important to note that items with surge damage can sometimes be repaired.

Does homeowners insurance cover surge damage?

Most homeowners insurance policies will pay up to $1,000 per appliance or electronics item that was damaged by a power surge and up to $5,000 total on all of these items throughout an entire home.

Can power surges cause a fire?

Power surges are relatively rare and usually only last a fraction of a second, but they can do significant damage to electronic devices and household appliances, and even cause fires.

Is there a reset button on a refrigerator?

Appliances do not have a reset button on them - to reset any appliance you UNPLUG the unit from the outlet for 3 minutes - plug back in - or turn off breaker to outlet and appliance for that long - then turn back on. That will reset the control computer board and reset the appliance.

How do I protect my refrigerator from a power surge?

Unplugging Appliances: The most straightforward and effective defense against power surges is unplugging your appliances, particularly when anticipating stormy weather. This prevents surges from directly reaching and potentially damaging your devices.

How long is fridge OK after power outage?

As the USDA notes in Keeping Food Safe During an Emergency, your refrigerator will keep food safe for up to 4 hours during a power outage. Keep the door closed as much as possible. Discard refrigerated perishable food such as meat, poultry, fish, eggs, and leftovers after 4 hours without power.

Is it safe to unplug a fridge?

The answer is no. The temperature of a refrigerator needs to be maintained at a certain level, and if you unplug it, the temperature inside drastically changes leading to many problems. Even when not in use at night, it is best left plugged in to preserve the quality of the food stored inside.

Can a bad refrigerator cause high electric bill?

As cold air leaks from a faulty seal, the refrigerator compressor has to work harder which can shorten the lifespan of your fridge and increase your energy consumption. Visit lcec.net for more ways to save on your electric bill!

Why does a fridge trip the power?

If your refrigerator trips frequently, a faulty compressor can very well be one of the reasons. Every time the compressor turns on for running the entire cooling cycle, it trips the breaker. As and when this happens, the typical grounding issue of the compressor makes it overloaded with electricity.

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