There is no denying how useful microwave ovens are in the kitchen. It brings added convenience as you can quickly cook pre-prepared meals or heat fresh ingredients with just a touch of a button. It has helped households at times when they need it the most.

It may be a simple appliance in your kitchen, but like all other devices, it may require repairs and maintenance.

We have compiled some of the most common problems with microwave ovens and their fixes. Remember, if these quick and easy solutions do not work, call an appliance repair technician to provide you with the right solutions.

Without further ado, here are some of the quick solutions for microwave issues.


Sparks in the Microwave

When you see sparks inside your microwave, chances are there is a metallic object inside that creates the build-up of charged particles. There is a simple solution to this. Before putting food inside the microwave, make sure that you don’t use foil and crockery made with enamel. Once you notice sparking, quickly remove the item to avoid excessive heat and damage to your microwave.

If the sparks are not caused by a metal object, it could be by a faulty diode or a broken waveguide. Both of these problems need an expert appliance repair technician.

Microwave is Not Running

You need your microwave to run to heat your food. It may be not working for a variety of reasons.

If you have a simple tabletop microwave, make sure that it is properly plugged into an outlet. Test the electrical outlet if the electricity is running fine. You can do this by testing other devices on the outlet. If this is the case, you need an electrician to repair it.

Another reason why your microwave is malfunctioning could be its door switch. It is a common problem for a microwave oven, and you need to contact a repairman who is certified to resolve this type of problem.

Microwave is Running But Not Heating

If your microwave has completed its cycle and yet the dish is still cold, don’t fret. It could be due to the microwave magnetron or the high voltage diode. The magnetron is the one that produces heat to cook and heat the dishes, and the diode is the source of power for the magnetron.

When either of these parts is faulty, it will prevent the microwave from heating. These parts are replaceable but hard to reach. Hence, you need assistance from a qualified appliance repair technician.

Microwave Tray Would Not Turn

Most microwave ovens have a turning tray where you put the dishes while in use. If the tray won’t turn, the food will not heat evenly, and it needs immediate repair. The common cause of this issue is a faulty drive motor. The drive motor provides the rotating action on the tray, and you need to replace it to solve the problem.

Another reason could be a broken roller guide. This is where the tray sits to help the tray rotate. Wear and tear can cause this part to deteriorate and impedes the movement of the tray. It needs a technician to replace this part.

Excessive Noise from the Microwave

Your microwave naturally makes noise while operating but when you hear excessive noise, there is a problem. A noisy microwave means can be due to a variety of reasons like a faulty high voltage diode, cooling fan, magnetron, roller guide, and drive motor. It requires disassembly to know the cause of the problem, and you should enlist the assistance of an expert repairman.


The microwave is a small yet powerful device in your kitchen. It offers convenience for everybody. By educating yourself on the common causes of microwave problems, you can deal with a malfunctioning device.