1. Unable to heat.
If the microwave oven can't heat up, it may be because the high-voltage fuse is blown. You can test the high-voltage fuse with a multimeter and replace it if it is damaged.
2. Sudden power failure
If the microwave oven suddenly loses power during use, it may be caused by poor contact of the power cord or damage of the power port. You can check whether the power cord is secure, and if there is no problem, you may need to replace the power port.
3. The display screen is not normal
If the display screen of the microwave oven is not displayed correctly, it may be because the LCD screen or other electronic components are damaged. You can use a multimeter to test electronic components and replace damaged parts.
4. Noisy noise
If the microwave oven makes abnormal noise during operation, it may be caused by the failure of the bearing part of the turntable. You can disassemble the microwave oven, clean the turntable bearing or replace the faulty parts.
5. This button doesn't work properly.
If the microwave button doesn't work properly, it may be because there is something wrong with the key switch of the microwave oven. You can disassemble the microwave oven, clean the key switch or replace the faulty parts.
The above are the common faults of microwave ovens and their maintenance methods. What needs our attention is that if you are not a professional maintenance person, you should be careful to carry out maintenance so as not to cause more harm. If you encounter more serious faults, it is recommended to seek professional help.