How To Repair a Microwave Oven

Microwave ovens are considered as one of the best inventions. Like any other piece of gadgetry, a microwave oven also breaks down with continued use. If you are having trouble with your microwave oven, consider doing do-it-yourself repairs first before going to appliance repair centers. This will save you both time and money.

Here are some basic troubleshooting tips you can do to fix some of these problems:

  • Microwave won't run. The first thing you have to do when your microwave oven does not run is to check if it is plugged to the power supply. If it still doesn't work, inspect the cord or the microwave oven if there are damages or burn marks. The most probable cause for the microwave not running even when it is plugged is that the fuse is not working properly. You may not have noticed that it has already blown. Open the outer casing of the microwave oven using a screwdriver. You will be able to see the fuse. Remove the fuse and test it with a VOM or a Volt/Ohm Meter. Place the nodes on the fuse and you should be able to get a reading of zero. If it is not zero, you have to replace the fuse of the microwave oven.
  • Microwave does not cook. Another common problem is the microwave is running but it does not cook the food. The component that you have to check here is the thermal cutoffs of the oven. These thermal cutoffs are circular in shape and they have wires coming out of them. Test this with the VOM using RX1. If the reading for the thermal cutoffs is not zero, you should replace them. Buy a thermal cutoff that fits the brand and model of your microwave oven. If the thermal cutoffs are not the problem, the problem may be with the transformer or the magnetron on the oven. The repair of these parts of the microwave oven is best left to a professional.
  • Plate inside microwave won't turn. If the plate inside the microwave oven won't turn, you can easily fix this by inspecting if the plate is properly situated on top of the mechanism. Remove the plate from the microwave and you will see a ring with rollers. Check if there is food or other materials that are stuck on the ring. When you use the microwave to cook or to grill, some pieces of food might get stuck in the microwave. Another thing you can do is to make sure that the plate is properly placed on the ring so that it will turn smoothly inside your countertop microwave oven.
  • Touchpad won't work. If you are using a microwave oven that is controlled with a touchpad, one of the most common problems you will encounter is the touchpad malfunctioning or not working when pressed. Most of the time, this problem is caused by small insects that make their way into the small spaces between the touchpad and the microwave itself. They can enter through the small airholes or vents on the microwave. What you can do is clean the airholes and cover it with a mesh material that has very fine holes. This will prevent insects from entering the vent.

These are some of the common troubleshooting tips that you can use to make your microwave oven work. In brands, such as Daewoo and Panasonic, you will be able to see some troubleshooting tips on the manual. If it still does not work, that's the time when you can bring your microwave oven to the repair center. It will be cheaper for you to go to a repair center that can work on different machines, such as washers, dryers and other household appliances rather than going to your brand's service center.


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