Microwave oven is a common tool for heating food with microwaves. Because people's life is getting faster and faster, the rapid heating of microwave oven has become an indispensable part of our life. Anyway, because of our frequent use, microwave ovens will inevitably have various problems after a long time. For example, the dishes in the microwave oven will rotate, but the food will no longer be heated, which is a common problem. So what is the cause of this problem? What should we do in this situation? Let Bian Xiao explain it to you.

Causes and solutions of microwave oven not turning hot;

1, the second door interlock switch is broken.

The reason why this double-door interlock switch is damaged is that the working voltage of 220 V cannot work normally due to frequent operation, poor contact and electric shock damage. Solution: First check whether the fuse is blown, and then check whether the monitoring switch is normal. If it is normal, the interlock switch is broken. Just change the switch.

2. The high voltage transformer is damaged.

Many friends have encountered the problem that the high-voltage transformer is broken. After starting, if the light is on but the turntable does not move, it means that it cannot be heated. If it is normal, just replace the high voltage transformer.

The magnetron is broken.

The magnetron is broken, mainly because the starting lamp is on but not heated. Generally, this reason is due to the filament aging of the internal magnetron. Solution: Check the discharge of high voltage capacitor and test the filament winding during the inspection. If not, the magnetron is broken. Ask a professional to replace it.

4. The high voltage diode is broken.

This happens all the time. The disk is spinning, but it is not heated. If so, it is necessary to test whether the winding is normal during maintenance. If it is normal, it depends on the high voltage diode. See if it's normal. If the test result is that the average value is infinite, a new high voltage diode is needed at this time.

5. The connector plug wire is loose.

Check whether the plugs on the magnetron and capacitor are loose. If they are loose, clamp them with pliers.

6, diode breakdown.

Use a multimeter R× 10k, connect the bar "+"to the negative electrode of the diode, and connect the bar "-"to the positive electrode of the diode. The reading should be around 150k. Switch the position of the multimeter rod. Measuring diode? Reverse resistance, multimeter reading should be ∞ large, if the multimeter reading is small, or close to short circuit, it means that the diode is broken down, and a new diode of the same model should be replaced.

The above is the reason why Bian Xiao introduced the microwave oven to everyone, but it is not hot, and what to do in this case. I believe that after reading Bian Xiao's introduction, you also know the reason why the microwave oven is turned but not hot, and you won't panic in this case. In fact, in Bian Xiao's view, the microwave oven should be overhauled and maintained regularly while in use, so as not to worry about what to do if something goes wrong. These are what Bian Xiao wants to say to you, hoping to help you.

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