What to do if the refrigerator does not turn off

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

The danger of running a refrigerator without turning it off

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

Important! Professional refrigeration technicians recommend not to delay repair work on a constantly functioning device. Minor problems can lead to serious damage in the future.

Possible reasons for the refrigeration unit not turning off

Damage to the rubber seal on the door

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

Temperature sensor failure

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

Control module malfunction

Modern refrigeration units are equipped with electronic control boards that are extremely sensitive to voltage surges. Any interruptions in the power supply lead to software errors in the microprocessor. As a result, it cannot adequately perceive the readings of all sensors, generates error messages, and causes the device to constantly operate.

Evaporator tube clogged

A capillary tube, the internal diameter of which is very small (0.6–0.8 mm), leads to the refrigerator evaporator. 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 cannot cope with pumping freon, which is why it runs continuously.

Refrigerant leak

The high-quality operation of refrigeration equipment directly depends on the amount of freon in the system.Even a small leak leads to the fact that the compressor is forced to compensate for the partial lack of refrigerant to maintain the set temperature. Since it is not possible to do this, the motor operates without interruption, without giving the desired result.

Compressor fault

Due to wear and tear of parts, compressors of long-term devices are not able to provide the proper refrigerant pressure in the system. This results in the inaccessibility of the required temperature regime and continuous operation of the engine.

Troubleshooting methods

If the seal is slightly worn, a temporary solution will be to restore it using heat (watering it with boiling water or blowing it with 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, use a tester to ring the corresponding node. In case of malfunction, remove the old sensor and install a new one. In this matter, it is better to entrust the matter to a qualified specialist.

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

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

Many refrigerators have a special reset function in case of failures in the control system. After pressing the appropriate 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 stabilizer.

Malfunction prevention

Purchasing a refrigerator of the required class

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

Correct temperature setting

In order not to put excessive load on the electric motor of the refrigerator, you need to ensure that the temperature on the thermostat is set correctly. Accidentally setting the maximum may result in non-stop operation of the unit. Therefore, it is necessary to select the appropriate temperature regime for the stored products.