Sparks a microwave inside: what should I do?

Modern life dictates its rules, so in the kitchen it is already impossible to do without a microwave oven. This is a convenient device for heating food and ready meals. Most microwave ovens are practically eternal, and to put it out of action, it is necessary to make special efforts and imagination. But some ovens (especially old ones) present unpleasant surprises to the owners. A common problem is inside a sparkling microwave. Many mistresses, seeing fireworks from sparks, are frightened and panic. Let's consider what to do in this case, what is it related to and how to fix it.

What is sparking in the microwave?

In the device of any microwave oven there is a magnetron. This device generates electromagnetic waves at high frequency. When the voltage required for its operation (namely 4 thousand volts) comes directly to the magnetron for the generation process, as well as 3 V for the subchannel, the antenna of this device starts to emit high frequency oscillations. The wavelength of such a vibration is 12 centimeters. The magnetron operates at a frequency of 2.4 GHz. The wavelength is 12 centimeters - it is this distance that flies the radiation into one oscillation. If you open the theory of radio waves, then the hole in the stove should not be larger than a quarter of this same wavelength and is 3 centimeters. At this frequency the water molecules begin to resonate, due to which they heat up.

A spark is an electric charge or an arc that is formed between two conductors. In the role of such can act different objects of steel, metallized images. When an alternating magnetic field is applied to the conductor, eddy currents appear in it.

If two conductors with different potentials are located close to each other, there will be a discharge or a spark between them. Therefore, the microwave sparkles inside.

Incorrect operation

Let's try to understand the causes of sparking. And violations of the rules of operation - this is one of them. In the instructions to any microwave oven indicated that in a microwave oven should use a special dish. If these recommendations are not observed, sparks form inside the device during operation. The device is cracking during operation.

If the microwave from inside spark, the manufacturers do not recommend at this time to use the device. If the oven is used further, this can lead to unfortunate consequences, such as the failure of the device, as well as exposure to dangerous electromagnetic waves. It is forbidden to put in the microwave oven utensils from solid metal and with metallized patterns, including those with various edges on their basis. The formation of sparks can be short in time. But this is a significant risk that the magnetron will fail. This is the most expensive part in the microwave device.

So, the microwave sparks inside. What to do in this case? It's simple - just stop the device and extract the conductor of electricity. However, if the furnace continues to scare the owner with sparks, then this indicates the failure of the device.

The need to replace the mica plate

This is the most common cause of sparking after operational disruptions. The reason is that the mica plate burns out during operation. Manufacturers use it in the design of microwave ovens to dissipate microwaves. If the stove is not monitored or taken care of, this plate accumulates fat deposits, as well as food and food residues. As a result, the plate is greatly overheated. This leads to its destruction. If you do not change this plate, you will have to replace the already more expensive magnetron.

To find out whether the mica plate is really to blame, it is necessary to understand which side the microwave oven is sparking from. If the spark comes from the side of the plate and there is a distinct smell of burning inside the oven, this indicates the need to replace the element. Operate the microwave device with burnt mica is prohibited.

Replacing the plate with your own hands

You can repair the microwave oven yourself. First, you need to make sure that the reason why the microwave sparkles inside is exactly in the diffuser. The plate is then checked for burned holes. Before you begin to install a new one, you should thoroughly clean the inner chamber of grease and food residues. These mica plates are sold in the stores of household goods. Buy a product in a regular store is easier and cheaper. However, the product may not match the size - it will have to be cut. To clarify the size of the old plate from the microwave is applied to the new and with the help of scissors remove all unnecessary. The edges should be treated with sandpaper. Then it remains only to install the plate.

Damaged internal coating

This is another popular reason. Sparks a microwave inside and sparkles - what should I do? You should carefully check the inner coating. The place where food is heated or cooked is covered with a special enamel layer. Remains of food, scratches - all this leads to various injuries. It will not be possible to restore this cover by yourself. For this, special enamels are needed, which can not be purchased in everyday life. This type of repair is performed by specialists in service centers. Coating is inexpensive.

Coating Restoration

Before you give the microwave oven to the service center to restore the coating, all dirt and grease should be removed from the inside. Where there is a violation of the coating, the enamel should be removed. If you spend time, you can find this cover on sale, but there is not everywhere. The damaged area after cleaning is blown out with this remedy and left for a certain time. Then they perform a check. If after starting the microwave sparkles, the sparks inside the microwave indicate that the coating should be improved. If there is no cod, then the device can be operated further.

Causes of violation of the coating

If the microwave is placed too large dishes, then this can cause damage to the enamel surface. If the dishes and do not touch the walls, then during the rotation it can move. With constant friction, the enamel will become thinner and thinner each time. In the end, this will lead to the need to restore the coating.

Conclusion

To ensure that the microwave oven does not spark, you must follow the rules of operation and do not use metal utensils with it. It is also necessary to monitor the condition of the inner chamber - it must be kept clean. If the oven suddenly gives out electrical effects, do not panic. There are only a few reasons why a microwave is sparking inside. We already know what to do.