Microwave oven is one of the kitchen appliances that we often use in our daily life, but there are also some problems in the use process. The following are some common maintenance methods and precautions for microwave ovens.

Maintenance method:

1. Check the power supply: make sure that the microwave oven socket works normally and the plug is plugged tightly.

2. Check the fuse: If the microwave oven doesn't work at all, it may be that the fuse is blown and needs to be replaced.

3. Check the control panel: If the control panel of the microwave oven does not work normally, it may need to be replaced or repaired.

4. Check the door switch: If the microwave oven can't start or stop heating, it may be that the door switch is faulty and needs to be adjusted or replaced.

5. Check the waveguide cover: If there is spark or peculiar smell inside the microwave oven, it may be that the waveguide cover is damaged and needs to be replaced.

6. Check the turntable motor: If the turntable of the microwave oven does not work, it may be that the turntable motor is faulty and needs to be repaired or replaced.

Precautions:

1. Avoid idling: Do not run the microwave oven without food or liquid, which may cause damage.

2. Use special appliances for microwave ovens: Do not use metal containers or silver tableware to avoid sparking.

3. Regular cleaning: always clean the inside and outside of the microwave oven to keep it running normally.

4. Follow the instructions: read carefully and follow the instructions of the microwave oven, especially the instructions on heating time and power.

5. Timely maintenance: If there is a problem with the microwave oven, stop using it immediately and seek professional maintenance help.