How to Fix Microwave Tripping Circuit Breaker

Do you have a mysterious issue occurring with your microwave oven? If it keeps randomly tripping the circuit breaker, then you might be scratching your head in confusion. Don’t worry though because this blog will explain exactly why the problem is happening and how to fix it, so that you can get back to using your reliable appliance again.

How to Fix Microwave Tripping Circuit Breaker

It’s possible for anyone, even those without technical know-how or electrical knowledge, to successfully troubleshoot and solve this common microwave problem by following simple instructions on how to fix microwave tripping circuit breaker and taking some basic safety measures with electricity. So if you’re ready to learn about why microwaves trip breakers and how to prevent overloads from taking place in the future – keep reading!

What Causes a Microwave to Trip a Breaker?

One of the most common causes of a microwave tripping a circuit breaker is that it has exceeded its designated wattage. The wattage allotted to each appliance should be clearly indicated on the back or side of the machine, and if it exceeds this number, it can cause the breaker to trip.

It’s possible for even an older model to exceed its wattage if it is used too often or for long periods of time. Another possible cause of a microwave tripping the circuit breaker could be a faulty outlet. If the wiring in an outlet has been damaged, it can lead to fluctuations in voltage that can cause the breaker to trip.

It’s important to note that any kind of power surge, either from an outside source or the microwave itself, could also be responsible for a circuit breaker tripping. If a large appliance runs on the same circuit as the microwave, such as a dishwasher or washer, and dryer, it can use up more energy than the circuit is designed to handle and cause the breaker to trip.

Lastly, older microwaves may not have strong enough insulation to prevent short circuits. This can lead to arcing in wires and cause a circuit breaker to trip.

Inspecting each of these potential causes is important in order to properly diagnose why your microwave is tripping the breaker. Taking preventative measures such as unplugging other appliances on the same circuit when running the microwave or using a surge protector can also help prevent further issues.

10 Methods How to Fix Microwave Tripping Circuit Breaker

1. Use a Circuit Breaker Finder 

If you’re not sure which breaker controls your microwave, the easiest way to find out is to use a circuit breaker finder. These devices are relatively inexpensive and easy to use. Simply plug the device into an outlet, and it will emit a signal that can be traced to the correct breaker when it is turned on.

 Use a Circuit Breaker Finder

Once you’ve located the appropriate breaker, turn it off and unplug the microwave. If the breaker trips again, then you know your problem lies somewhere in the wiring. However, if the breaker does not trip again, then there is likely an issue with the microwave itself.

2. Check for Loose Connections 

Once you’ve located the correct breaker, check to see if there are any loose connections. If the breaker is loose, simply tighten it up. If there are any other loose connections, such as at the outlets or switches, tighten them as well.

If the breaker has been tripping a lot, try replacing it altogether. To do this, you’ll need to turn off the main breaker in your home. Once it is shut off, you can safely remove the old breaker and replace it with a new one. Though, you may want to consult an electrician if you’re unsure of how to do this properly.

3. Check for Corrosion

Corrosion can cause electrical problems, so it’s important to check for it and clean it off if necessary. To do this, simply unscrew the cover of the breaker box and inspect the breakers for any signs of corrosion. If you see any, use a wire brush to remove it.

If the corrosion is more extensive, you may need to replace the breaker altogether. Be sure to follow the manufacturer’s instructions when doing so.

Additionally, check the other electrical components in your microwave, such as the terminals, wires, and connections, for any signs of corrosion. Clean off the affected areas with a wire brush if needed. This will ensure that your microwave is operating safely and efficiently.

4. Replace Damaged Breakers 

If you see any signs of damage on a breaker, such as burns or melted plastic, it needs to be replaced. Breakers can be purchased at most hardware stores. Simply turn off the power to the breaker box before removing the old breaker and installing the new one.

Once the new breaker is installed, turn the power back on. Test your microwave to see if it trips the circuit breaker again. If not, the problem should be fixed. If it still trips the breaker, you may need to check for other problems with your stove or even contact an electrician for further help.

The breaker’s rating should be checked to make sure it matches the recommended wattage of your microwave. If you have any doubts, contact a qualified electrician for help.

5. Use Surge Protectors 

Surge protectors can help to protect your appliances from power surges that can trip circuit breakers. Surge protectors are relatively inexpensive and easy to install. Simply plug them into an outlet and then plug your appliances into the surge protector.

Surge Protectors Can Help to Protect

This will provide an extra layer of protection for your appliances, as well as the circuit breakers in your home. However, you should always unplug your appliances from the surge protector when not in use to make sure that it remains effective.

To prevent damage from occurring, it is a good idea to replace your surge protectors every couple of years. Make sure to buy surge protectors that are rated for the wattage of your appliances in order to get the most protection from them.

6. Unplug Unused Appliances 

Appliances that are plugged in but not being used can still draw power and trip circuit breakers. To avoid this, unplug any appliances that you’re not using. This includes things like coffee makers, toasters, and microwaves. Be sure to check the wattage of each appliance to ensure that it does not exceed your breaker’s rated amp draw.

7. Use Energy-Efficient Appliances 

Energy-efficient appliances use less power than traditional ones, which can help to prevent circuit breakers from tripping. When shopping for new appliances, look for those with the ENERGY STAR label, which indicates that they meet strict energy-efficiency guidelines set by the U.S. Environmental Protection Agency (EPA).

While these appliances may cost more upfront, they can help lower monthly utility bills and reduce the risk of circuit breakers tripping. Additionally, many utilities offer rebates or discounts for purchasing energy-efficient appliances, so be sure to check with your local utility provider before you buy.

8. Turn off Unused Lights 

Just like unused appliances, unused lights can also draw power and trip circuit breakers. To avoid this, make sure to turn off all lights when you leave a room or area of your home. If you have lights connected to a dimmer, turn the switch all the way down instead of leaving it on.

Additionally, try replacing regular light bulbs with power-saving LED lights. They may be more expensive upfront, but they will reduce your electricity bill in the long run and help prevent circuit breakers from tripping.

9. Install Dimmer Switches 

Dimmer Switches Can Help You Save Energy

Dimmer switches can help you save energy by reducing the amount of power that is used when lighting is turned on. Dimmer switches are available for both incandescent and fluorescent light bulbs. When shopping for dimmer switches, look for those that are specifically designed for your type of light bulb.

Before installing a dimmer switch, you should turn off the circuit breaker or power supply to the area where you are working. Make sure that all of the wires are properly connected and that they are securely fastened to the electrical box.

Once everything is in place, you can turn the power back on. The dimmer switch will help reduce the overall amount of power used for lighting and can help to prevent your microwave circuit from tripping.

10. Have an Electrician Inspect Your Wiring

If you’ve tried all of the above methods and your microwave is still tripping the breaker, you may have a wiring issue. It’s best to call an electrician and have them inspect your wiring before attempting to fix the problem yourself.

The electrician can inspect the wiring to ensure it is up to code, and they can also check for any exposed wires or other wiring problems that may exist. Your electrician can also check to see if the wiring is too old or not designed for a microwave.

This will help you determine whether or not you need to replace the wiring. Once you have determined this, your electrician can then replace or repair the wiring as necessary. Additionally, they can make sure your breaker is the right size and type for the job.

Inspect Wiring Before Attempting to Fix Problem


All in all, it is important to know the causes of why a microwave might trip a circuit breaker and when to do simple troubleshooting or call for professional help. Whether you can solve the issue on your own or need to look up a certified technician, knowing how to fix a malfunctioning microwave can save you time, money, and hassle down the road.

Hopefully, this article gave you some helpful tips about how to fix microwave tripping circuit breaker successfully, so now that you have the proper knowledge on how to get the job done, why not give it a try today?

Dave Parker
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