Knowing what the main defects an appliance can develop can help you to identify them and, consequently, to make the most suitable repair as appropriate. For example, the fact that the microwave's internal light does not always mean a problem. This may just be the burnt-out lamp.
The most severe problems, such as unusual noises during operation, may indicate internal defects in the appliance. If you are afraid of these signs and do not feel safe to find out for yourself, do not worry. Simply call for microwave service and leave the service to the expert.
How to fix a microwave?
If you have knowledge of the device and feel qualified to repair it, you can get your hands dirty according to the five tips below. But, before that, wear antistatic and shockproof gloves to discharge the high voltage capacitor from the device, so you can make any repairs without risk.
1. Changing the fuse
Technically, the fuse is a safety device that has the function of cutting off the flow of an electric current when it is very intense. This cut is what will protect the installation from being shorted. So if your microwave isn't turning on, the first thing you should check is the fuse. If you know how to check the fuse, then that’s great, otherwise, go online to know the process of checking the fuse or take the help of experts.
2. Checking the turntable
This is another very common problem when it comes to microwave repair. After all, the turntable is one of the most defective parts of the equipment. However, before changing it, make sure that the guide is correctly aligned or if food remains attached to it, which could compromise its operation.
Performing this task is quite simple: simply remove the tray from the platform and wash normally with warm water and mild detergent. Also clean the inside of the appliance, paying particular attention to the turntable cavity and the casters into which it will fit.
Replace the tray and test the microwave. If it really is not working, there may be an internal problem with the rotary motor. In this situation, if you are unaware of the part, the best thing to do is to look for a qualified professional to assist you.
3. Replacing the power diode
Is your microwave not warming up as it should or have you noticed a strange noise while the appliance is operating? These may be signs of power diode failure. We are talking about nothing more than the electronic component through which electric current passes in one direction, while the opposite flow is blocked.
To replace it, you need to discharge the microwave capacitor and replace the defective diode with a new one. This process is quite easy and can be done without the use of even basic electrical/electronic tools. But, if you come across any issue, then consult Appliance repair experts.
4. Checking the inside of the appliance
When it comes to microwave repair, some defects are so common that people tend to ignore them. Do you know when you turn on the equipment and notice the presence of small sparks? Yeah. You must have got scared and made an impression that the problem is serious, which is not always true.
This defect may arise simply from leftover food that has remained inside the appliance and continues to cook between uses. This is also true for those splashes on the microwave walls that we sometimes forget to clean. The sparking issue can be solved by cleaning the microwave.
5. Changing the lamp
While this may not be an issue, it certainly causes inconvenience, as it prohibits you from seeing as to how much food has been cooked inside the microwave.
1. Unplug the microwave or the power box;
2. Locate the screws on the vent panel and remove them;
3. Remove the panel and identify the lighting box;
4. Remove the housing cover and replace the lamp;
5. Replace the cover and screws;
6. Reconnect the microwave to the outlet and test the appliance normally.