Why does the refrigerator turn on and turn off after a few seconds

A situation where the refrigerator turns on and turns off after a few seconds may signal a serious problem. Malfunctions in the operation of household appliances are constantly encountered, giving people trouble and demanding repairs. In turn, their implementation may require serious material costs and even a complete replacement of equipment. In this case, the failure of large devices is able to deliver the greatest problems.

We are looking for the reasons why the refrigerator turns off immediately after switching on

The refrigerator is rightfully one of the most important devices in the house, and breaking it down can bring significant discomfort to the life of the whole family. In addition, this situation requires substantial material costs.As a rule, the most ordinary and simple repair of a refrigerator is expensive, and you don’t even have to talk about its complete replacement. At the same time, it is easy to diagnose a breakdown, since any violations in the functioning of the device serve as a signal for attention. However, not always malfunctions in work imply the presence of such visible signs that they are easy to recognize even with the naked eye.

In most cases, the most serious problems lurk behind the inconspicuous manifestations. The situation when the refrigerator turns on and immediately turns off is just one of them.

Domestic Refrigerator It has a rather complex structure consisting of many parts and functional units. One of them is compressor, promoting air circulation inside the system and causing it to cool evenly. It is with this device and the violation of its functionality associated with the greatest number of cases of damage to refrigerators. On this basis, the state when the device is often turned on and off can be entirely due to compressor malfunctions. However, such manifestations may occur due to factors of a different property.In general, the reasons that the refrigerator is switched on and off alternately can be covered in the following:

• malfunctions in the operation of the compressor;
• malfunction of the control unit;
• failure of start-up relay.

As you can see from the above criteria, at least two of them are related to the operation of the compressor and only one implies a malfunction of the control unit. At the same time, it is only an expert who can determine the exact cause of the state when the refrigerator turns on and turns off immediately.

Description of problems and their characteristics

Why is the refrigerator turned off? Malfunctions in the operation of the compressor means that a winding breakage has occurred, its windings have closed, or the motor has jammed. The element itself begins to overheat and produce specific sounds. To protect the system from overload, the refrigerator has a protective mechanism consisting of a special relay. It works in a similar situation, turning off the compressor a few seconds after switching on. At the same time, further attempts to start the motor are accompanied by constant activation of the protection, which is why this problem occurs.It is also worth noting that the failure of the motor-compressor implies its complete replacement, since carrying out any repair work is not able to solve this problem.

Malfunctions in the operation of the control unit can also serve as the main reason that the refrigerator functions poorly.

In most cases, the presence of such a fault also leads to the fact that it is able to turn on and immediately turn off. In this case, the intervals during which the compressor operates may vary in their duration. In this case, the control unit ceases to perform its basic functions and gives a command to prematurely shut down the device. It should also be noted that with such a development of events, it is necessary to rewrite the board or replace it completely.

In normal condition, the start protection relay is intended to control the launch compressor and its protection from various kinds of overloads. In their role may take the voltage drops, overheating of the main elements or their malfunction. In turn, from the moment of launch to shutdown, all work is controlled by a protective mechanism,which, if necessary, is triggered by the closing and opening of the contacts of the bimetallic plate.

At the same time, it heats up from the current passing through it, after which it deforms, opening contact and turning off the motor. As a result of the operation, the electrical conductivity of the plate may be disturbed, which leads to the fact that the compressor shuts down almost a few seconds after switching on. The elimination of such problems implies a complete replacement of the start-up relay, which should be carried out only by competent specialists.

Conclusion on the topic

There are several reasons why the refrigerator can turn on and turn off immediately. Each one involves major repairand in some cases, large material costs. At the same time to carry out such work alone is not highly recommended in order to avoid more serious damage. Any repair of the refrigerator is best done in a service center or, if the warranty card has expired, then in professional salons that are responsible for their work and promise a positive result. If you understand electrical engineering, you can try repair it yourself.