When the voltage is lower than 187V, the microwave oven will not be heated. Because the microwave oven must be above 187V to work normally. ?
Solution: Avoid the peak power consumption when using the microwave oven, or replace the voltmeter.
2. Insufficient battery capacity?
The battery capacity of the microwave oven is insufficient, resulting in the microwave oven not heating.
Solution: Charge the battery or replace it with a new one. What if the microwave oven is not hot?
3, high voltage transformer damage
After the microwave oven was turned on, the light came on, but the turntable did not move and could not be heated. It is likely that the high voltage transformer is broken. Solution: Replace the high voltage transformer.
4. The high voltage diode is damaged
After the microwave oven is turned on, the light is on and the turntable is moving, but it just can't be heated. Probably the high voltage diode is broken. You can see if the high voltage diode is normal. If the result is infinite, the high voltage diode is broken. ?
Solution: Just replace the high voltage diode directly.
5. The second door interlock switch is damaged.
Due to frequent operation, poor contact and electric shock damage, the working voltage of 220 V can not work normally, which leads to the damage of door interlock.
Solution: First check whether the safety tube is blown. If there is no fuse, check whether the monitoring switch is normal. If the monitoring switch is normal, the interlock switch is broken. Just replace a new door interlock switch.
6. Magnetron damage The microwave oven turns on the light but doesn't heat it, which is probably caused by the aging filament of the magnetron.
Solution: Test the filament winding, generally 0 Ω. If not, the magnetron is broken and needs to be replaced with a new one. ?
Extended data:
Maintenance principle of microwave oven
The main content of maintenance is cleaning. Please pay attention to the following points when cleaning:
1. Please unplug the power plug from the power socket before cleaning.
2. When the dirt is serious, it is also allowed to scrub with neutral detergent or soapy water (water washing is not allowed). But it is forbidden to use banana oil, gasoline and hard cloth or brush to scrub. This will destroy the paint layer and lead to rust in the furnace cavity.
If the microwave oven is used for a long time, it will smell in the cavity. Lemon or vinegar can be boiled in the oven with water to eliminate the odor. ?
4. Whether the microwave oven is used or scrubbed, there will be water vapor or moisture in the cavity. Therefore, drying some oven doors with dry cloth or slightly opening them to make them ventilated and dry will greatly reduce the failure rate of microwave ovens and prolong their service life.