Why does the lg refrigerator not turn off. How to properly and quickly defrost a two-chamber refrigerator? The most common reasons why the refrigerator turns on and immediately turns off

Refrigerators have been an integral part of every kitchen for many years. New ultra-modern household appliances do not require careful maintenance and do not cause much trouble to housewives. But it does not hurt to find out how to properly ensure defrosting and whether it should be done.

Why defrost your refrigerator and freezer

The principle of operation of any refrigeration equipment is a closed cycle in which the motor-compressor drives a special refrigerant substance through the pipes. Usually the system is filled with freon. Passing through the zones of high and low pressure, passing from a liquid state to a gaseous state and vice versa, the refrigerant provides a decrease in temperature in the refrigerator and freezer.

The principle of operation of the refrigerator is a closed cycle in which the compressor drives the refrigerant through the pipes (designations in the diagram: 1-condenser, 2 - capillary, 3 - evaporator, 4 - compressor)

Here's how it goes:

Freon vapor injected into the condenser is cooled and condensed. The substance changes into a liquid state. The heat received from freon, the condenser gives off to the environment. That is why the back wall during operation of the refrigerator is always hot.
After the condenser, liquid freon enters the capillary tube under high pressure. While moving through the tube, its pressure gradually decreases to the desired level.
Liquid low-pressure freon after the capillary enters the channels of the evaporator, where, taking heat, it instantly boils and turns into steam. Due to this, the internal volume of the chamber is cooled. Frost forms on the surface of the evaporator.
After passing through the evaporator, freon vapor is pumped out by the compressor into the condenser.

The cycle is repeated until the set temperature is reached on the surface of the evaporator. After that the compressor is switched off.

The warm air of the surrounding area causes the temperature inside the refrigerator to rise gradually. When it reaches a certain value, the compressor turns on again, repeating the described cycle. The moisture in the air freezes. A snow-ice build-up appears on the surface of the evaporator, which disrupts the necessary air exchange and hinders the operation of the device. With a large layer of ice, the compressor will operate at full capacity. This will increase power consumption. The number of work cycles will increase. The compressor shutdown will occur less and less, and then it will stop altogether. As a result, the function of proper storage of products will be disrupted in the household appliance, and its service life will be sharply reduced. Also, the compressor may fail and need to be replaced. That is why it is necessary to defrost the refrigerator as soon as the volume of frost on the evaporator reaches a significant size. Snow-ice build-up takes up space inside the freezer, leaving less space for food, and the food itself freezes much more slowly. If you do not defrost, the frost will grow to such a size that the door will not close. And that will only exacerbate the problem.

A large layer of ice impairs operation and can lead to damage to the refrigerator.

How often should you defrost

The frequency of defrosting directly depends on the amount of frozen ice in the freezer: the more and faster it grows, the more often you need to defrost the refrigerator. Much depends on the model of the refrigerator itself, the intensity and nature of its operation.

Frequency of defrosting refrigerators of different manufacturers

The instructions usually indicate after what period of time defrosting is necessary:

Modern refrigerators with a drip or air-drop system, for example, Atlant, Indesit, must be defrosted at least once a year.
Old Soviet units - Minsk, Saratov - require more frequent defrosting: once every 4 weeks. If the refrigerator is not used very actively, you can increase the period, but at least once every two months in summer and every four months in winter.
In refrigerators equipped with the No frost system, the defrosting process occurs automatically. Water flows to the back of the appliance through a special drain hole, and then evaporates from the heat generated by the compressor. Specially defrosting such devices is not necessary. But sometimes you still have to wash and disinfect.

How the frequency of defrosting is affected by the features of the operation of the device

How intensively the refrigerator is used, how it is done correctly, directly depends on how often it will have to be defrosted:

Frequent opening and closing of the door leads to the fact that a large amount of warm air enters the chamber, which crystallizes into a snow build-up at a negative temperature. The same result will be if the door is opened too long. Try to first think about what exactly you want to take, and then open the device and do it quickly. Don't wait for the beep.
The refrigerator is difficult to operate if the door is opened frequently and for a long time
The increase in the snow layer is facilitated by the evaporation of moisture from food. Food must be stored in airtight containers.
The penetration of warm air into the refrigerator can be caused by a loose fit of the rubber seal, if it has lost its qualities. As a result, the ice build-up will appear very quickly. You can fix the situation by replacing the part.
Due to a poorly fitting rubber seal, warm air enters the chamber, which impairs the operation of the equipment.

If you are using the appliance correctly, but the snow builds up too quickly, you should seek the help of a refrigeration specialist.

How to defrost properly

For most models, it is recommended to operate the device at an ambient temperature of 10–30 ° C. Experts recommend using the same temperature range when defrosting refrigeration devices. Therefore, in hot climates, it is advisable to start defrosting in the evening when the air has cooled down a bit. During the night the ice will melt, and in the morning you can finish the process. So, the stages of defrosting:

Turn off the device:
Take food out of the refrigerator. Here are some ideas on how to maintain their quality while defrosting:
Remove all removable parts and fixtures from the refrigerator: trays, grills, shelves, containers, etc. While the appliance is defrosting, wash and dry them.
Wait for the refrigerator to defrost. This may take 3-10 hours, depending on the layer of ice:
- modern models have a special tray for collecting melt water;
- in the Soviet refrigerator, put a bowl under the freezer, and lay dry rags or rags around the appliance, because there will be a lot of melt water and it will spread in all directions.
Manufacturers do not recommend speeding up defrosting, but if you really want to, then choose safe methods:
- install a fan opposite the refrigerator so that air enters the chamber: the ice will melt faster;
  The fan can speed up the defrosting of the refrigerator
- ordinary table salt copes well with ice: pour it on a saucer and put it inside the freezer or sprinkle it on the surface of the ice build-up;
  Regular table salt will help clear the ice from the refrigerator faster.
- a vinegar solution will not only speed up defrosting, but also disinfect the interior of the chamber: dilute the vinegar with water in a 1: 1 ratio and use a spray bottle to apply the product to the snow ice.
  The vinegar solution will speed up the defrosting and disinfect the surfaces inside the refrigerator compartment.
When all the ice has melted, clean the refrigerator. To do this, use soft cloth napkins or sponges, liquid dishwashing detergents. Do not use abrasive products - hard brushes, scouring powders. They will damage the inside of the camera, leaving scratches on it. Wash the rubber seal with soapy water and do not forget to clean the condenser located on the rear wall of the unit from dust. The best way to do this is with a vacuum cleaner, but a small brush will also work. To clean the inside of the appliance, use:
- soda solution: dilute 2 tbsp. l. products in 0.5 l of warm water, stir well, apply with a sponge on the surface of the chambers and leave for half an hour, and then rinse with clean water;
- ammonia (for severe contamination, to eliminate unpleasant odors and disinfection): take 7-10 parts of water for one part of alcohol, soak a napkin in the solution and put it on a dried spot, rinse the camera with plenty of water after half an hour;
  With the help of ammonia, you can wash heavy dirt from the internal surfaces of the refrigerator and disinfect them
- lemon to eliminate mold and bad smell: add 2-3 tbsp to a glass of water. l. lemon juice, wipe the walls of the chamber and shelves with the resulting product;
  Lemon does a good job of removing mold and bad smell.
- special products for hygienic cleaning of the refrigerator, for example, HG with a spray.
  Special products for the refrigerator clean surfaces well and are easy to use
Dry the clean refrigerator with a soft cloth. After all, any moisture remaining inside the chamber will contribute to a new ice growth.
After all the procedures, do not rush to immediately turn on the refrigerator, leave it with the door open for half an hour. This time is enough for an accidentally left drop of water to dry naturally.

The described defrosting method is suitable for all models and types of refrigerators, for built-in and freestanding appliances.

The built-in refrigerator is defrosted in the same way as a free-standing one.

General defrosting and washing the refrigerator - video

Common Mistakes

Not often, but there are times when they forget to turn off the refrigerator and start defrosting. That is, they open the door, take out food, sometimes they even go somewhere ... And the device at this time continues to increase the temperature.
A mistake that will be very costly. It is strictly forbidden to try to break off the ice with the help of any mechanical devices. The evaporator tubes are not strong enough, they can be easily pierced with a knife, fork or something else.
The same applies to food or dishes frozen to the evaporator rack or plate. Any attempt to pull them out may damage the unit. The best advice is to wait.
A disadvantage that is passed off as a virtue. There is a lot of information on the net about how to quickly and easily defrost a refrigerator in 10 minutes. All methods are reduced to a forced increase in temperature inside the chamber. For example, it is recommended to put a bowl of hot water in the freezer or blow the hot air of a hair dryer on the ice crust. No one argues that hot water and air will really melt the ice very quickly. Although the device will not break immediately from such actions, its service life will be reduced. Any increase in temperature can damage the cooling system and freeze.

Manufacturers of refrigeration equipment recommend installing an air conditioner in the room at high ambient temperatures for high-quality and long-term operation of appliances, rather than blowing them with hot air. High temperature for the refrigerator - no more than 30 ° C.

For high-quality and long-term operation of refrigeration equipment, manufacturers recommend installing an air conditioner in the room.

How to turn on the appliance after defrosting

It's pretty simple:

Turn on the refrigerator in the network, that is, insert the plug into the socket. Close the doors and do not load food yet.
On the control panel, set the average value for the refrigerator and freezer. Press the Super Freeze button. Lighting up indicators will confirm the correctness of the action. The refrigerator pumps up the temperature in the chambers without food.
When the optimum temperature is reached, the indicators will turn off. This event signals that food can be loaded into the refrigerator chambers.
Plug old refrigerators that do not have a control panel into the mains and leave for 1-2 hours without loading products. During this time, the device will be able to gain enough cold. After that, you can place products in it.

Over time, any refrigerator will have to be defrosted. Even models with the No frost feature sometimes need it. Compliance with simple rules will not only update the cycle, but also ensure the high-quality operation of the device for many years.

In the article you will learn about typical malfunctions of the No Frost refrigerator. How to deal with the fact that it does not turn off, does not cool or accumulates ice? To find out the cause of the problem, you need to understand the principle of operation of Nou Frost.

The evaporator in the technique is located behind the rear or side wall. Two-chamber refrigerators can be equipped with two fans, one in each department. These fans move cold air through the chambers.

After the motor-compressor stops, defrost starts. Moisture flows into the drain hole and is removed from the system. The following advantages of No Frost can be noted:

uniform cooling of products in the compartment;
small temperature difference between the shelves;
minimum level of care - the system rarely needs to be defrosted;
lack of snow in the freezer;
super fast freeze.

There are also disadvantages:

due to the operation of the fans, the noise level increases;
lower degree of loading due to the design;
consumption of more electricity;
high cost (compared to drip-type refrigerators).

What doesn't work in the No Frost fridge

What to do if the No Frost refrigerator is constantly working and does not turn off? Understand the reasons for this behavior.

Periodically, the motor must be switched off. The continuous operation of the compressor leads to wear of its components. So the first thing to check is:

Camera door. Is it tightly closed? Maybe something is interfering with it or the seal needs to be replaced. Problems with closing the door are solved immediately, otherwise warm air will constantly enter the compartment. Because of what the motor does not turn off.
established modes. If you set the super-freeze mode on the electromechanical control, it will not turn off until you turn the knob.
Availability of ventilation. If the room is stuffy, or the refrigerator is close to the wall, the battery, the compressor will constantly pump cold.

You checked everything and even replaced the seal, but the motor continues to run? There may have been a breakdown:

The temperature sensor gives incorrect readings to the module, or the thermostat is broken. These reasons lead to the fact that the electronic board receives incorrect signals, so the cooling in the chambers is not turned off.
The control module burned out. The reason is a faulty board or its elements - you cannot trust it with the operation of equipment, you need to diagnose and replace it.

Evaporator problems. There is probably a blockage in the capillary tube. It is necessary to call the master, who will inspect and eliminate the blockage.
There is a freon gas leak in the system. He is responsible for cooling, so the refrigerator tries to compensate for the loss of refrigerant with constant work.
Problems with the compressor, which cannot create normal pressure for cooling.

If you notice such a problem, contact the service center. No need to wait until the equipment finally fails. Similar malfunctions happen with refrigerators No Frost "Stinol", "Atlant", "Whirlpool", "Daewoo" and others.

No Frost fridge fan not working

The fan is a mandatory element in the system. Without it, cold air will not be able to enter the compartment and cool the food. Two problems happen with the fan: either it does not work, or it constantly works. Let's look at both features in more detail.

Most often this happens when the blades of the part freeze. Open the chamber door and look - if the blades are overgrown with a layer of ice and snow, you need to urgently defrost the refrigerator. Perhaps there was a release of refrigerant or a drain hole clogged, where thawed water flows.

Defrosting should be done for at least 10 hours, preferably a day.

If, even after defrosting, the fan does not start to work, check its motor for serviceability. When burned, the part must be completely replaced.

When the blades rotate without stopping, the reason may be in the evaporator, which is overgrown with ice. The air begins to circulate poorly, so the fan works to lower the temperature in the chamber.

Similar signs may indicate a breakdown of the compressor, control module, temperature sensor. If the latter fails, the board receives incorrect information about the temperature in the chamber, so it makes the motor run without stopping. In such cases, a complete diagnosis of the refrigerator is needed.

Malfunctions of Nou Frost refrigerator "Samsung"

Technology from the manufacturer Samsung is always equipped with the latest developments, modern electronic control. Refrigeration equipment (HO) with the No Frost system is no exception. What kind of breakdowns can be found in a Samsung two-chamber refrigerator? Let's consider in more detail.

Since the temperature is almost the same in each compartment (a slight difference of 0.3 degrees), the user should pay attention to:

the appearance of a crust of ice on the walls;
leak under the refrigerator, water in the pan;
an increase in the temperature in the chamber - you may have opened the compartment door too often, or it is not closed tightly.

If a display is installed on the panel, it displays breakdowns with icons or error codes. This will let you know if there is a problem with the door contacts. When rearranging or rehanging the door, the connections could be broken. You may have set the wrong temperature. Fixing the problem is simple - by adjusting the readings.

When the refrigerator breaks down, you can notice the corresponding signs:

Snow layer in the evaporator area - relay malfunction. The evaporator will soon be overgrown with snow, the refrigerator will fail. To replace the part, it is better to call the master. To speed up the repair, defrost the compartment for 10 hours.
If the timer breaks, the symptoms are exactly the same as in the previous case.

Typical malfunctions of Samsung No Frost refrigerators:

noisy operation of CW, extraneous sounds;
one of the cameras does not work well;
non-stop operation of the compressor;
non-working display;
refrigerant leakage due to mechanical damage.

Electronic control allows the user to practically not interfere with the refrigerator settings. However, electronics is its weak point. Be careful when operating.

Faults Know Frost "Indesit"

Indesit refrigerators are also equipped with modern technologies, while the cost of equipment compares favorably with other models. What to do if a two-chamber refrigerator malfunctions and what breakdowns occur most often, read below.

Most often, the freezing department does not work in the Indesit HO. In this case, a snow coat forms on the walls. What happened:

Have you noticed that the engine is constantly running, but the temperature in the compartment is elevated? There may be several reasons.
The broken thermostat no longer communicates with the module, so the module does not turn off the cooling. The thermostat needs to be checked and replaced.
A damaged wall or a clogged capillary leads to freon leakage. It is necessary to check and eliminate the cause of the leak.
Depressurization of the seal on the door also contributes to non-stop operation.
The refrigerator only runs for a few seconds or does not turn on at all. Several options are possible: the starting relay, the electronic module, or its wiring has broken.
Failure of the temperature sensor or blockage of its tube is also accompanied by an increase in snow.

You may also experience the following problems:

Fan problems. In addition to external signs, an error code may appear on the scoreboard. By the code you will understand exactly where to look for a breakdown. Most often there are problems with the wiring between the board and the fan. The contacts are called by a multimeter, after which the faulty elements are changed.
Faulty defrost heater. At the same time, which means the need to check the connections and the heater itself.

There are also problems with the motor-compressor. In this case, a replacement is recommended.

Faults Know Frost LG

If the LV two-chamber refrigerator does not work, it is urgent to fix the problem, otherwise food spoilage cannot be avoided. Immediately check the connection of the equipment to the network: maybe the plug has moved away or the integrity of the wire has been broken. Also inspect the XO case: maybe it is tilted forward and the door is slightly ajar. Then you need to set the technique by level.

How to identify other breakdowns:

Over time, users complain that the equipment is loud. The most innocuous causes, which are easy to fix, are incorrect installation, overflowing with branch products. What should be done:

arrange the pans in the compartment away from each other;
move the refrigerator away from the wall and furniture.

Follow the instruction manual for installation.

Faults Nou Frost "Bosch"

Bosch refrigeration equipment is distinguished by its reliability and quality. In the event of a breakdown of a two-chamber refrigerator, you need to contact the master or try to figure out the problem yourself.

Common breakdowns:

Refrigerator does not work or does not turn off. The reasons for this behavior have been described above.
Condensation collects in the compartment. This happens when the door is not properly closed: warm air enters the cooled chamber, forming condensate, which turns into frost.
Breakdown in the No Frost system. Food is not cooling properly.
One of the chambers does not work or freezes slightly.

Refrigerators LG have taken a leading position in this segment of technology. The company is considered a global center of innovation. All brands of refrigerators from two-door to complex French and American series are made soundly, the design is stylish. There are almost no malfunctions of LG refrigerators during the warranty period. Often repairs are associated with voltage drops in the network - electronics cannot withstand. When buying a modern model of a refrigerator, you need to take care of installing it through a voltage stabilizer.

LG refrigerators last a long time. However, technology tends to fail over time. From the first day of operation, you need to take care of the electronic control unit and the compressor, especially the inverter one. The electronic program setting requires attention. Step-by-step instructions are given in the corresponding section of the documentation for the device.

Some models are noted in the reviews as unnecessarily noisy. Part of the reason lies in the quality of the assembly on sites scattered around the world. However, proper leveling, do-it-yourself fitting of fasteners, standard ventilation gaps will partially eliminate the noise of the LG refrigerator. Repair is required when extraneous knocking, whistling or strong heating of the compressor is added to the noise.

A breakdown is considered if one of the chambers of the refrigerator has ceased to hold the specified mode. Ice has appeared in the freezer or freezing temperatures are observed in a cold cabinet. There may be several reasons:

failures in the automatic control system;
failure of temperature sensors;
relays are faulty;
refrigeration circuit problem associated with freon leakage or compressor failure;
malfunction of the magnetic valve in a single-compressor two-chamber apparatus.

A malfunction of the No Frost system of the LG refrigerator will let you know by a violation of the temperature regime, icing inside the cooling chamber. The product air cooling system is complex and balanced. The complex includes an evaporator, from which cold air is blown by a fan into the freezer. Then the gas is supplied through the air valve to the heating of the positive chamber. Problems may be related to:

the temperature sensor failed in the evaporator or chambers;
the fan stopped working due to icing or motor failure;
heating element does not work;
air valve not adjusted.

The appearance of frost in the freezer, "fur coats" in the refrigerator indicates a possible malfunction in the condensate drainage circuit.

Faulty valve refrigerator LG 479

Refrigerators of this series are characterized by two compartments powered by one compressor. Therefore, a solenoid valve is used to direct the flow of refrigerant cyclically and alternately into the chambers. If the mode switching magnetic valve is “stuck”, then the temperature in the freezer will decrease and rise at the top. The unit is not repairable, the valve needs to be replaced.

Such malfunctions are typical for refrigerators, when the mode in the chambers is independent on one compressor, there are 2 control buttons. As a preventive measure, it is recommended to change the regimen, with a deviation from the average values, in case of emergency and for a short time.

Malfunctions of the LG refrigerator with the No Frost system brand GR - 389 SQF

The apparatus of Russian assembly, two-chamber, with a “no frost” system, a large freezer from below, has gained popularity in Russian families. Full No Frost, height 188, lower freezer, LED backlight and trouble-free operation for more than ten years - this is how users characterize the device.

The remote control with push-button switching of modes signals deviations on the Freeze Temp display. After turning off the power, all settings are set to the middle position. The electronic module is located in the upper part under the decorative panel. The built-in self-diagnostic mode can be activated manually, testing all systems will take 2 hours.

Typical malfunctions found during diagnostics:

the second light on the left indicates an open or short circuit in the freezer sensor;
the fourth light on the left is on - a defrost sensor malfunction;
all the lights are on - Nou Frost does not work.

If ice is found under the lower shelf of the freezer, the condensate drainage system is clogged. To clean it, you will need to remove the decorative lining and find a drain hole. You can unfreeze the tube yourself. During all manipulations, the refrigerator must be de-energized.

If Nou Frost is working, the sensors are working - there are problems in the cooling circuit. Only the master can check the amount of freon, whether there is a passage in the capillary tube, the performance of the compressor.

Refrigerator malfunctions LG M589ZMGZ

Silver model with a linear inverter compressor, 200 cm high. A multi-flow cooling system and No Frost are used. Electronic control with self-diagnostics.

An analysis of equipment failures before the end of the warranty period shows that the model is reliable, it rarely gets into repairs. The main causes of breakdowns:

start relay does not work;
burned out electronic control unit;
temperature sensor failed;
the sealing rubber has worn out.

Most often, problems arise in switching the operating modes of two circuits or incorrect operation of the Nou Frost system. The inverter motor has a 10-year manufacturer's warranty. The continuous operation of the sealed circuit allows you to save pipe connections from starting shocks and vibration, preventing freon leakage.

Refrigerator LG GC -339NGLS - malfunctions

Model with a mirror front surface, two-chamber, with a lower freezer. One compressor. Electronic control. The defrosting of the upper chamber is automatic, the lower - manual.

Refrigerator malfunctions are related to their design:

does not hold the freezer or refrigerator mode;
an ice coat is growing in the refrigerator;
water accumulates under the drawers of the refrigerator;
puddles are on the floor, under the refrigerator.

If the mode in the chambers is violated, one of the temperature sensors may have failed. Another cause is often a faulty bypass solenoid valve. The temperature in the refrigerator may be high due to loose door closing, worn sealing rubber. It happens that the contact is broken, the light in the cell is on even when the door is closed.

If you have done everything that the instruction prescribes, it remains to call the wizard. He will establish the reasons. In addition to the above faults, there may be:

freon leakage from a damaged circuit;
malfunction of the compressor or engine start relay;
blockage of the compressor tube.

The signs of problems are similar, and only a specialist can find and fix the breakdown.

Refrigerator malfunctions LG GA-B409 UEQA

The refrigerator is two-chamber, beige with a quiet inverter compressor and a complete defrosting system No Frost. The freezer is on the bottom. Electronic control, push-button display. No temperature display. Illumination is provided by an incandescent lamp.

The malfunctions of the LG refrigerator of this model and their elimination are not original. But the use of an inverter compressor eliminates problems with the refrigerant circuit. Isobutane is used, capillary tube clogging is unlikely. Leakage through radiators is rare. Therefore, the circuit is reliable.

The Nou Frost system, the health of the temperature sensors and relays, and the removal of condensate can become problematic. A specialist can determine the exact reason why it is warm in the plus chamber, and ice freezes in the freezer. It is the user's responsibility to comply with the operating conditions.

Video

We offer you to look at the review of the LG refrigerator model.

LG Refrigerator Malfunction

Does your Lg brand refrigerator work non-stop? Or for unknown reasons, it constantly turns off? Repair of this breakdown in any cases can be carried out independently, in others - it is worth resorting to the services of a competent professional.

Refrigerator is constantly running

The situation when the refrigerator freezes without shutting down is quite common. Some reasons are due to careless use, others - the failure of nodes. Here are the most common causes of such a breakdown:

Contamination of the “capillary” of the circuit of the circulation of the working substance.
Wear of the sealing contour on the door.
Broken thermostat.
Defective cooling piping.
Breakdown of the starting relay.
Open door.
Installing the refrigerator near heat sources.
Coolant leak.

Among the reasons due to which the refrigerator you have installed is constantly working, there are also very serious ones. In a situation if they are not eliminated, the danger of excessively rapid wear or overheating of the motor is very high. Therefore, it is better not to delay the repair too much, but to immediately call a competent craftsman who is able to fix the problem and carry out repairs.

Refrigerator keeps turning off

This malfunction can occur with both newly purchased and old equipment, and the reasons that fridge LG constantly turns off, there may be several:

Low mains voltage.
The electric motor broke down.
Problems with the control module.
Start relay failed.

Identification of the sources of this breakdown can only be carried out by a competent refrigerator error repairman. LG. Therefore, at the first signs of an accident, contact the service center.

Many owners of refrigeration equipment sooner or later face certain failures in the operation of the units. Very often the refrigerator works without turning off - and in this case, the cause should be immediately identified and eliminated, because if nothing is done, the equipment may completely fail (for example, the compressor will burn out).

Please note: it is only possible in some cases to solve the problem on which the refrigerator freezes but does not turn off on your own - basically, you cannot do without the help of a specialist.

Refrigerator works and does not turn off

If the refrigerator (or rather, its compressor or motor) for a long time or at all, constantly working, the reasons may be as follows:

The unit has been installed incorrectly. For example, the owner forgot about the need for an air gap between the case and the wall, or placed the device near the battery.
The room temperature is too high and does not correspond to the climate class of the refrigeration equipment.
The thermostat was set to the lowest possible temperature under the condition of a hot environment.

A similar option is to activate the super-freeze function (available in almost all modern No Frost refrigerators), because of which the device does not turn off after the set time (on average, 10-15 minutes).

All of the above problems can be fixed independently and quickly enough, but often the causes can be more serious.

Probable causes of the malfunction

In search of an answer to the question of why the refrigerator compressor is constantly running and not turning off, first check out the most common reasons:

Natural wear of individual equipment elements (thermostat, compressor) has occurred, they should simply be replaced.
The door does not close tightly, which is why warm air constantly enters the chamber. At the same time, the temperature sensor signals that cooling is required and the motor is constantly running, which is why the refrigerator freezes, but does not turn off for a long time. The reason may lie both in careless operation, and in wear or violation of the integrity of the rubber seal. To solve the problem, you should simply replace the rubber band on the door, which is quite possible to do on your own, but it is still better to seek help from a master.
Coolant leak. It is almost impossible to detect a leak, not to mention restoring the integrity of the system and refilling it with freon. If you suspect such a malfunction, you should immediately call a specialist.
There are several more common and serious types of breakdowns, all of which will be discussed in more detail.

The cause of the malfunction in the relay

It is possible that the power start-up relay of the compressor that controls the thermostat has broken. Such a malfunction often occurs during power surges: the relay contacts “stick” (weld to each other) and therefore constantly supply current to the compressor. To check the power contacts of the refrigerator relay, you should use an ohmmeter, and if a malfunction is detected, replace it.

You should not try to remove the old relay from the refrigerator and install a new one yourself, even if you know exactly where this piece of equipment is located and what is required for its dismantling and installation. Even the slightest mistakes made can lead to a complete failure of the unit without the possibility of restoring its performance in the future.

Faulty thermostat

If the refrigerator thermostat is faulty, the device may constantly work due to the fact that the control module constantly receives a corresponding signal to reduce the temperature in the chamber, although it is already at the required level.

By the way, most often the thermostat is found in older models of electromechanical controlled units - in more advanced devices, its functions are performed by an air sensor, and in case of malfunctions, the corresponding error code is displayed on the display: E1 for Siemens and Bosh, R5 for Samsung, F26 for Indesit and Ariston.

When the thermostat cannot be repaired, it needs to be replaced, which is also better to entrust to the master.

If the reason is in the thermostat

As a rule, the thermostat in the refrigerator is located on the front panel or in the chamber of the device, and is designed to set the required temperature. The most common malfunction of this element is the stem overhang. It just needs to be put in place. However, in some cases, the causes of the malfunction may be in the failure of the thermostat (for example, due to a short circuit in its case after water has entered due to inaccurate defrosting), and then it also needs to be replaced.

The refrigerator does not turn off - what to do

It is important to know how often (after what time) and at what temperature the refrigerator should be turned off. If the equipment is in good working order, then the compressor operates cyclically: every 10-20 minutes it turns off and then turns on again. When the room is warm enough, the duration of operation can be increased, but in any case, the refrigerator should not run constantly - at least once an hour the motor is turned off.

Also remember what not to do if the refrigerator does not turn off: try to diagnose and fix the breakdown on your own. Of course, you can try to install a new thermostat or even a compressor yourself, but there is a high probability that after some time the device will fail again or even refuse to work after inept manipulations.

The best option is to contact the service center for help and call the master at home. Many residents of Odessa and the region prefer our SC, because we guarantee prompt (within one day with all the necessary details) and high-quality work, regardless of the level of complexity of the breakdown.