What is the impact of high voltage capacitors in the microwave oven?

The high-voltage capacitor of the microwave oven is damaged, generally it is lost capacity (the capacity is greatly reduced), and there is very little short circuit. Once short-circuited, the fuse will be blown. The high-voltage capacitor of the microwave oven is a voltage doubler rectifier capacitor. If it is damaged, the typical performance is that there is no high-voltage output, and the magnetron is not heated.

1. High-voltage capacitors are damaged, mostly short-circuit, resulting in burn-in insurance (high, low, and pressure insurance may be damaged). The insurance burned, naturally no output, no heating.

2. Low-pressure insurance burns, the indicator light will not light, the turntable does not turn, the cooling fan inside does not turn, and the stirrer does not turn. The low-voltage insurance is normal, the high-pressure insurance is burned, the indicator light will be on, and the turntable will also turn, but there is no output, no heating.

3. The output of the microwave tube is determined by whether the high voltage part is normal.

4. The light is on, indicating that the low pressure part of the fuse is good, but the fault of the high pressure part.

5. When the high voltage fuse is blown. The microwave oven light is on, not heated, and the cause of the high voltage fuse should also be checked:

6. Check the high and low voltage fuses according to the circuit diagram, and then check the high voltage capacitor, high voltage diode, and magnetron. In general, high-voltage fuses are prone to damage, followed by high-voltage power.