How to Fix a Microwave That Sparks

We’ve all been there. You’re in the middle of cooking, and your microwave starts sparking like crazy. It’s annoying and downright dangerous. Have you ever been reaching for a snack in your microwave when suddenly you get a shock? If so, you’re not alone. Mice often like to build nests in microwaves, and when their nests get wet, it can cause sparks.

If you’ve had a microwave that sparks, you know it’s not a fun experience. Luckily, there are some things you can do to try to fix it. In this post, we’ll outline some of the common causes of sparking in microwaves and offer solutions on how to fix a microwave that sparks to help you get your appliance up and running again.

Summary: If your microwave is sparking, it can be due to any of a few common problems. One potential issue is either a faulty diode or capacitor. It’s also possible that the spark is due to loose electrical connections or an accumulation of food particles on the turntable motor shaft. To fix these issues, check the diode or capacitor and secure any loose connections; you may also need to clean the motor shaft.

How to Fix a Microwave That Sparks

5 Common Causes of Microwave Sparks

There’re many different causes of microwave sparks. However, here are five of the most common:

1. Dirty Microwave

Your microwave may be sparking because it’s dirty. Food particles and grease can build up walls and ceilings, causing sparks. To clean your microwave, use a damp cloth or sponge to wipe the inside. You can also use a commercial microwave cleaner or make your cleaning solution by mixing equal parts water and vinegar.

2. Metal in the Microwave

Another common cause of sparks is metal objects in microwaves. If there’s any metal in the microwaves, it will cause sparks as the microwaves bounce off. To avoid this, ensure there’s no metal in the microwaves and that any cookware you use is microwave-safe.

3. Damaged Microwave

If your microwave is damaged, it may also cause sparks. For example, if the door seal is damaged, microwaves can escape and cause sparks. Additionally, if the magnetron (the tube that generates microwaves) is damaged, it can cause sparks. If you think your microwave is damaged, it’s best to take it to a professional for repairs.

4. Improper Use

If you misuse your microwave, it can also cause sparks. For example, if you try to cook something that’s not meant to be cooked in a microwave, it can cause sparks. Additionally, if you put metal in the microwaves or don’t use it properly, it can cause sparks.

5. Electrical Issues

If your home has electrical issues, it can also cause your microwave to spark. For example, if the outlet your microwave is plugged into is loose, it can cause sparks. Additionally, if there’s a power surge, it can also damage the microwaves and cause them to spark. If you think your home has electrical issues, it’s best to have an electrician take a look.

If your microwave is sparking, it’s essential to figure out the cause so you can fix it. You can keep your microwave working correctly and avoid potential hazards by troubleshooting the problem.

Keep Your Microwave Working Correctly

7 Steps on How to Fix a Microwave That Sparks

Step 1: Check the Door Seal for Cracks or Holes

First, check the door seal for cracks or holes. For that, you need to open the door and Inspect the rubber seal that runs around the edge of the door. If you see any cracks or holes, that could be causing air to leak into the chamber, which in turn could be causing sparking. If there are any, that could be the reason why your microwave is sparking. You’ll need to replace the door seal.

If the door seal looks fine, then move on to the next step.

Step 2: Check the Wave Guide Cover

Your microwave might be sparking because the waveguide cover is dirty. The waveguide cover is the metal screen that protects the waveguide from food splatter. If your waveguide cover is dirty, it can cause sparks inside the microwave.

To clean the waveguide cover, remove it from the microwave and wash it with warm, soapy water. Rinse the cover well and dry it with a clean towel. Then, put the cover back on the microwave and see if the sparks have stopped.

If your wave guide cover is not dirty, or if cleaning it doesn’t stop the sparks, move on to the next step.

Step 3: Check the Magnetron

The magnetron is the component in your microwave that actually produces the microwaves. If it’s defective, it could be the cause of the sparks. You’ll need to contact a professional to replace it for you. To check the magnetron, first, ensure there is no metal in the microwave. Then, turn on the microwave and observe it through the window. If you see sparks coming from the magnetron, it’s likely defective.

Step 4: Check the Diode

The diode is what allows electricity to flow in one direction. If it’s damaged, then it can cause the microwave to spark. To check if it’s damaged, you’ll need to remove it from the microwave and take it to a professional for testing. If it is damaged, then you’ll need to replace it.

Step 5: Check the Capacitor

The capacitor stores electricity and releases it when the microwave is turned on. If it’s damaged, then it can cause the microwave to spark. To check if it’s damaged, you’ll need to remove it from the microwave and take it to a professional for testing. If it is damaged, then you’ll need to replace it.

The Capacitor Stores Electricity

Step 6: Clean the Door Seal Regularly

The door seal on your microwave is crucial in keeping the sparks contained. If the door seal is not clean, it can allow sparks to escape and cause a fire. You should clean the door seal regularly with a damp cloth to ensure it is free of debris.

Step 7: Check for Obstructions in the Microwave Cavity

One of the most common reasons why a microwave spark is because there are objects inside the cooking chamber that are causing interference. The first step in troubleshooting this problem is to take everything out of the microwave and give it a good cleaning. If you find any items that are charred or damaged, replace them. Once you’ve cleared the area, run the empty microwave for one minute to ensure no further sparks.

If you’ve checked all these things and still can’t figure out why your microwave is sparking, you’ll need to call a professional for help.

What Happens if Your Microwave Sparks?

If your microwave sparks, it’s likely due to faulty electrical components. In some cases, the sparks may be caused by metal objects in the microwaves, such as foil or cutlery. If this is the case, stop using the microwave immediately and unplug it from the power source. You’ll need to replace the damaged parts before you can use them again.

If your microwave is sparking, it’s crucial to take action immediately. This problem can cause severe damage to your home and even start a fire. Be sure to unplug the microwave and call a qualified technician as soon as possible. Do not attempt to repair the problem yourself, as this could be dangerous. With proper care and maintenance,

Can You Eat Food That Sparked in the Microwave?

If you’ve ever seen your food spark in the microwave, you may have wondered if it’s safe to eat. The short answer is yes; you can eat food that has flared in the microwave. However, there are a few things to keep in mind.

First, make sure that the sparks don’t cause any damage to the inside of the microwave. If there are bare wires or metal touching, it’s best to err on caution and get a new microwave.

Second, check the food itself for signs of burning. If the food is blackened or charred in any way, it’s best to throw it out.

Check the Food Itself

And finally, be sure to give your food a good smell before eating it. If it smells burned, it’s probably best to avoid eating it.

So there you have it! Eating food sparked in the microwave is perfectly safe, as long as you take a few precautions. Bon appetite!

How Many Years is It Okay to Use a Microwave?

It depends on the make of your microwave. If it’s a lower-quality model, it might only last a few years before it starts to spark. Whereas, if you have a higher quality model, it could last up to 10 years or more without any issues.

You Can Check it Out Fix a Short Circuit Fridge

What is the Reason That Makes Metal Spark in a Microwave?

Several reasons can cause the metal to spark in a microwave. One of the most common reasons is that the food item itself contains metals, such as aluminum foil. When these items are placed in the microwave, the microwaves will cause the metals to vibrate and create sparks.

Another common reason for sparking is metal objects in the microwaves, such as forks or knives. When these items are placed in microwaves, they will also cause sparks.

If you have a sparking microwave, it is essential to figure out why before using it again. If you are not sure what is causing the sparking, you can contact a professional for help.

Contact a Professional for Help

Frequently Asked Questions

What Happens if Your Microwave Sparks?

If your microwave sparks, it’s important to take action and stop the fire from spreading. Here are a few steps you can take:

  1. Stay calm – The priority is to stay safe and avoid injury. Don’t panic or try to fix the problem yourself.
  2. Turn off power at the source – If you can turn off the electricity at the main panel, do so immediately. This will prevent further damage from occurring and may save your house from burning down completely!
  3. Call a professional – A qualified electrician should be called if there is a significant fire or smoke present in your home, as they will have more experience with safely handling these types of emergencies.

Why is My Microwave Sparking for No Reason?

If you’re experiencing sparks or pops from your microwave, there are a few things that you can do to try and fix the issue. The first thing is to check for any obstructions in the venting system of the oven. This includes anything like cords, paper clips, food pieces, etc. If there are no obstructions, then it may be necessary to take the cover off of the microwave and clean all of the filters with a vacuum cleaner or brush. After cleaning both filters and dustbin/scrubber area inside Microwave Ovens use only water spray while heating up the oven as directed by the owner’s manual carefully ebook-Microwave if the problem continues after following these simple instructions!

What Are the Signs That a Microwave is Going Bad?

Microwaves can last anywhere from 6 to 12 months, so it’s important to check the appliance for any signs of wear and tear, such as:

  • Worn or cracked insulation
  • Bulging or warped cabinet
  • Damaged or flickering screens
  • Issues with power supply
  • Unusually high levels of noise or interference

Does Arcing Damage a Microwave?

Arcing (or spark) damage to a microwave can occur if water or food gets inside the unit and contacts high-voltage parts. This can cause short circuits, which in turn could lead to fire or other serious electrical problems. Be sure to keep your microwave clean by wiping down all exposed surfaces with a damp cloth every time you use it. And stay away from wet foods that might create an electric current – for example, raw vegetables or fruits.


A microwave can be a lifesaver in the kitchen, but it becomes a safety hazard when it starts sparking. If your microwave sparks, taking action quickly is essential to avoid any potential damage or injury. In most cases, the problem can be fixed by following the stated simple steps.

By following the steps, you will know how to fix a microwave that sparks, and you can get your microwave up also running again without any further problems. Have you ever dealt with a sparking microwave? Let us know!

You May Also Read: How to Fix Magnetron in Microwave

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