Microwaves are common household appliances. However, if you're not careful, you could damage your microwave. For example, running a microwave with nothing inside it can cause it to overheat. Microwaves can be challenging to repair because most individuals do not understand how they work. However, they can sometimes be easy to repair if you know where to start. First, make sure that the microwave is plugged in. If this isn't the issue, there are several other possible causes.

Faulty Touchpad

The most common issue faced by homeowners is that a microwave touchpad does not work. When this is the case, you will likely need a membrane switch replacement after you have tested the touchpad with a multimeter to determine that it's defective.

Inadequate Heating

The second most common issue is that the microwave does not heat or heats unevenly. This is the result of a problem with the magnetron, capacitor, or diode. The magnetron might be repairable, but you may need to completely replace it. However, if you have a problem with the capacitor or the diode, you'll either need to hire a microwave repair technician or you will need to purchase a new microwave.

Noises

Microwaves will sometimes generate strange noises. The magnetron and the diode can create a very loud humming or buzzing noise. The drive motor can produce a grinding noise and will need to be replaced. The drive coupler can cause the rotating glass turning tray to create a banging noise. This could also lead to the rotating glass refusing to spin.

Microwave Won't Turn On Or Off Properly

The door interlock switch is responsible for shutting the microwave off when you open the door. If you open the door and the microwave is still running, the interlock switch might be to blame. Also, if the microwave starts and then immediately turns off, this could also be a result of the switch. Fortunately, you can simply replace the interlock switch. 

Door Won't Close

There are several components that could prevent the microwave door from closing properly. You might have an issue with the torsion spring or the door latch assembly. All of these can be replaced. 

Because a microwave can be very affordable, some homeowners will simply purchase a new one if the old one becomes defective. However, there are very nice microwaves that can cost thousands of dollars. With these types of devices, it will make more sense to hire an appliance repair technician. Call a company like A OK Appliance Service to learn more about appliance repair.