The refrigerator does not turn off and constantly works - how to fix and what to do?

The working cycle of a working refrigerator is from 12 to 20 minutes. Thus, in an hour, the motor stops about 3-4 times. High indoor temperatures, especially in the summer or during the heating season, can lead to a longer cycle. In the limit, the device should rest at least once for an hour. If a different picture is observed, then there may be a breakdown. However, the reasons can be more harmless, the main thing is to be able to correctly identify them.

Danger of operation of the refrigerator without shutting down

Non-stop operation of the motor leads to overheating and wear of parts. If the quality of all components and the assembly of equipment leave much to be desired, the service life of a continuously running compressor is extremely short. The average values ​​are no more than six months. The determining factor is the model of the unit.

Important! Professional refrigerators recommend not delaying the repair of a constantly functioning device. Minor malfunctions in the future can promise a serious breakdown.

Possible reasons for the operation of the refrigeration unit without shutting down

Violation of the rubber seal on the door

Warm air may enter the chamber due to wear or damage to the door seal. The cause of the trouble lies in the timing and quality of operation of the equipment. The required temperature, due to the presence of a gap, cannot be achieved in principle, which is why the refrigerator works continuously.

Temperature sensor failure

A failed temperature sensor does not send a signal to the compressor. That, in turn, continues to function, despite the already achieved temperature conditions. In modern models, the sensor can be blocked by a malfunction, for this reason the power supply circuit of the electric motor is not broken.

Control Module Failure

In modern refrigeration units, electronic control boards are extremely sensitive to voltage surges. Any power outages lead to software errors in the microprocessor. As a result, it cannot adequately perceive the readings of all sensors, gives error messages, and provokes the constant operation of the device.

Evaporator tube clogging

A capillary tube leads to the evaporator of the refrigerator, the inner diameter of which is very small (0.6–0.8 mm). During operation, it can become clogged, and the blockage can be of a different nature. For example, it is sometimes provoked by a small amount of moisture, which when frozen forms an ice plug and prevents freon from moving freely through the system. The engine does not cope with the pumping of freon, which is why it works continuously.

Refrigerant leak

High-quality operation of refrigeration equipment directly depends on the amount of freon in the system. Even a small leak causes the compressor to compensate for the partial lack of refrigerant to maintain the set temperature. Since it is not possible to do this, the motor functions without interruption, without giving the proper result.

Compressor malfunction

Compressors of long-running devices, due to wear of parts, are not able to provide the proper refrigerant pressure in the system. This results in the inaccessibility of the required temperature and continuous operation of the engine.

Troubleshooting Methods

If the sealant is slightly worn out, a temporary solution will be to restore it with heat (pouring boiling water or blowing a hairdryer). If the seal is seriously worn, it will need to be replaced. You can check whether the problem lies in the failure of the temperature sensor yourself. To do this, using the tester, you need to ring the corresponding node. In case of malfunction, dismantle the old one and install a new sensor. In this matter, it is better to entrust the matter to a qualified specialist.

If you have the appropriate equipment and skills, you can clean the capillary tube blockage yourself. First of all, when removing the tube from the system, it is necessary to find out what is the nature of the formed plug. Special solvents and blowing with compressed air can sometimes solve the problem. If all attempts fail, it is best to contact the service center.

The situation is similar with filling the system with the missing amount of freon. The presence of a craftsman with the appropriate equipment is a guarantee of quality work.

Many refrigerators have a special reset function in the event of a malfunction in the control system. After pressing the corresponding button (combination of buttons) and rebooting, the problem is solved until the next failure. Therefore, it makes sense to connect the refrigerator to the network not directly, but through a suitable voltage regulator.

Malfunction Prevention

The purchase of the refrigerator of the desired class

The climatic class of each equipment has its own requirements for operating conditions. If you do not follow certain rules and purchase a refrigerator that is obviously not suitable for the class of a particular room, then there can be no question of preventing possible malfunctions.

Correct temperature setting

In order not to exert excessive load on the electric motor of the refrigerator, it is necessary to take care of the correct setting of the temperature on the thermostat. A randomly set maximum may result in non-stop operation of the unit. Therefore, it is necessary to select the temperature regime corresponding to the stored products.