Door switch contact is poor, making the detection circuit is not closed, the microwave system does not start.

2. Improper operation, or won't use, set up without turning on the start button.

3. Magnetron burned out.

4. Magnetron transformer burned out.

5. Magnetron high voltage fuse blown.

1, the second door interlock switch is bad: this two door interlock switch is damaged due to frequent operation, poor contact, electrocution caused by the destruction of 220-volt operating voltage can not work properly. Solution: first check whether the fuse is blown, and then see whether the monitoring switch is normal, if it is normal, it means that the interlock switch is bad. Replace the switch on it.

2, high-voltage transformer damage: many friends have encountered such a problem, that is, the high-voltage transformer is bad. After the power on if the light is on but the turntable did not move, it means that can not be heated, if it is normal to replace the high-voltage transformer can be.?

3, the magnetron is bad: magnetron is bad mainly manifested in the boot light but does not heat, generally this is due to the magnetron inside the aging filament broken. Solution: Speak during the inspection of high-voltage capacitor discharge, test filament winding, the normal is 0 ohms, if not, it means that the magnetron is bad, change can be.