Microwaves: Common Malfunctions and Fixes

Microwave Won't Turn On

If your microwave won't turn on, the first thing to check is the power supply. Make sure the microwave is properly plugged in and that the circuit breaker hasn't tripped. If the power supply is fine, there may be a problem with the door switch or the thermal fuse. The door switch tells the microwave to turn on when the door is closed, so if it's not working properly, the microwave won't turn on. The thermal fuse is a safety feature that shuts off the microwave if it overheats, so if it's blown, the microwave won't turn on.

Microwave is Not Heating

If your microwave is not heating, it may be due to a problem with the magnetron, the part that generates the microwave energy. The magnetron can burn out over time, which will prevent the microwave from heating. Another possible cause is a faulty diode, which is responsible for converting the high-voltage electricity into microwave energy. If the diode is faulty, it won't be able to do its job, and the microwave won't heat up.

Microwave is Making Strange Noises

If your microwave is making strange noises, it could be due to a problem with the turntable motor. The turntable motor is responsible for rotating the turntable, which helps to evenly distribute the heat. If the motor is faulty, it may make a grinding or rattling noise. Another possible cause of strange noises is a problem with the cooling fan. The cooling fan helps to prevent the microwave from overheating, and if it's not working properly, it may make a humming or buzzing noise.

Microwave is Sparking

If your microwave is sparking, it could be due to a problem with the waveguide cover. The waveguide cover is a metal panel that covers the opening where the microwaves enter the microwave. If the cover is damaged or dirty, it can cause the microwaves to reflect back onto the magnetron, which can cause it to arc and spark. Another possible cause of sparking is a problem with the high voltage diode, which can cause a high voltage arc.

In conclusion, microwaves are a convenient and efficient way to heat up our food, but they can malfunction from time to time. If your microwave is not turning on, not heating, making strange noises, or sparking, there may be a problem with one of the components mentioned above. It's important to get your microwave checked out by a professional if you suspect there is a problem, as microwaves can be dangerous to work on if you don't know what you're doing.