If your microwave is buzzing, zapping, and flashing inside without any metal in the food, it is indicating a potential malfunction or a serious issue with the appliance. This is not normal and could pose significant safety hazards. It is crucial to take immediate action to address the problem to prevent any potential risks.
The buzzing sound, zapping, and flashing inside the microwave could indicate:
Electrical problems: There might be an issue with the electrical components, such as a faulty capacitor or diode, which could be causing the sparking and flashing.
Damaged waveguide cover: The perforated cover on the sidewall is called the waveguide cover, and its purpose is to protect the waveguide (a metal channel that directs microwaves from the magnetron to the cooking area) from food splatters and grease. If this cover is damaged, it can lead to arcing and sparking inside the microwave.
Contamination or moisture: Any food debris, grease, or moisture inside the microwave can lead to arcing and sparking.
Malfunctioning magnetron: The magnetron is the component responsible for generating microwaves. If it is malfunctioning, it can cause strange noises and electrical issues.
Regardless of the cause, any malfunction or electrical issues with a microwave can be dangerous and should not be ignored. Here's what you should do:
Stop using the microwave immediately to prevent further risks.
Unplug the microwave from the power source.
Do not attempt to fix the microwave yourself, especially if you are not familiar with microwave repair or electrical systems.
Contact the manufacturer or a qualified appliance repair technician to inspect and repair the microwave.
In the meantime, consider using an alternative method for cooking or reheating food, such as a stovetop or toaster oven.
Never use a microwave that is malfunctioning, as it can lead to serious safety hazards, including fire, electric shock, or other injuries. Your safety and the safety of those around you should be the top priority, so it's essential to address the issue promptly by seeking professional assistance.