Indesit refrigerator does not freeze do-it-yourself repairs

In detail: indesit refrigerator does not freeze do-it-yourself repairs from a real master for the site my.housecope.com.

Indesit refrigerators are manufactured by the Italian concern in Lipetsk. The brand is loved by the people for its reliability, laconic style and affordable price. The main products are combination cabinets with electromechanical control. They are resistant to the peculiarities of power supply in rural hinterland. But sometimes breakdowns occur, the Indesit refrigerator stops freezing.

Any refrigerator is capable of maintaining cold in a closed chamber using a special installation - a cold generator, a compressor. Freon is compressed in the apparatus, after which it gives off heat in the condenser to the surrounding air, turns into a liquid. Refrigerant flows through the pipes to the evaporator. There freon boils, evaporates, turning into gas. During this time, a lot of heat is required, and it is taken from the refrigerator compartment. The circulation circuit is sealed. Small leak - the gas will evaporate, the Indesit refrigerator will not freeze.

To maintain a constant and set temperature in one or several chambers, regulation and control devices are installed - temperature sensors, relays. The failure of one element will be the reason why the Indesit refrigerator does not freeze.

To keep the temperature in the thermos, there must be good thermal insulation, the circuit is sealed. The chamber is cooled by contact, when the evaporating tubes are inside the chamber, or by cold air - the No Frost system. Any loose fit of the door will upset the balance, the Indesit refrigerator will become hard to freeze.

The most important systems affecting the operation of the apparatus are listed. There are problematic nodes inherent in Indesit refrigerators. The electronics in this brand are imperfect. The control unit often breaks down, a new board is expensive. Drip defrost is a problem. The drain hole is intermittently clogged. The door heating circuit is made of steel; an old refrigerator often loses freon due to corrosion of the metal pipes. This is the main reason why the Indesit refrigerator stops freezing.

Video (click to play).

The cooling circuit can fail due to a malfunction of one of the parts. Most often, the reason is a lack or complete leakage of freon in the Indesit refrigerator. A malfunction can be detected by the following symptoms:

the temperature is kept in the freezer, and the refrigerator gradually rises;
the compressor hums incessantly;
gurgling of liquid is heard intermittently, the temperature continues to fall;
condenser - grill on the back of the refrigerator, cold;
after stopping for cleaning from ice, the freezer does not freeze, the compressor is running, it is very hot.

Why did the Indesit refrigerator stop freezing after cleaning? There was enough agent to maintain the regime in the frozen chamber, and during a long downtime, the gas finally evaporated into a leak. The circuit may have been broken while mechanically cleaning the tubing.

Before charging the system with refrigerant, the technician has to find the place of the leak, possibly turn off the heating circuit. One of the signs of the site of the fistula is the swelling of the chamber wall. A black oily spot is observed around the hole.

Often, the Indesit refrigerator does not freeze well as a result of a clogged capillary tube. White precipitate - a product of the reaction of freon and oil, clogs the capillary. Replacement or repair of the unit is required. Rarely, but the compressor is faulty. It does not create the required pressure in the gas environment.

The reason may be in the control system of the Indesit refrigerator. The compressor starts and stops depending on the command of the thermostat, which conducts the process using sensors and relays.The thermostat in a single compressor unit is installed in the upper chamber. Therefore, when the starting relay fails, the upper chamber does not freeze at first.

However, customers often complain that it is very cold in the positive chamber. The reason is also a malfunction of the Indesit refrigerator thermostat. At this time, the walls of the chamber are frozen over, because the compressor works without stopping.

The Indesit refrigerator will not freeze well if the inside of the chamber is overgrown with ice, which does not conduct heat, is an insulator. At the same time, the ice coat can break the tight fit of the doors. Incoming jets of warm air will cause additional ice. When removing frost, check or clean the condensate drain hole in the drip defrost system. Make sure the defrost starts and works.

It is possible to determine that the Indesit refrigerator has begun to work poorly by the constant operation of the motor or the lack of compressor starts. Note that if the compressor turns on for seconds, it turns off with a loud knock. It happens that the starting relay clicks, but the motor does not turn on. But if the light in the chamber is on and the refrigerator does not turn on, start the test with the thermal relay.

In the refrigerator, Indesit Nou Frost provides air cooling of the chamber. Cooling is taken by forced blowing of the evaporator using a fan. The Indesit No Frost refrigerator does not freeze for possible reasons:

the evaporator does not freeze;
the evaporator is covered with ice, air does not pass between the tubes, defrost does not work;
the fan is not working.

The refrigerant circuit can fail for the reasons listed above. In Know Frost, defrosting of the evaporator may stop due to a fuse, heating element malfunction, failure of the system timer or fan. The root cause is a violation of the defrost cycle, followed by icing of the evaporator and breakdown of the twist.

The build-up of snow is accompanied by a crackling and loud noise - the fan with its blades touches the icy surface. Continuing to work without eliminating the cause will damage the motor.

In a two-compartment refrigerator Indesit with No Frost, the air supply system to the upper and lower chambers is equipped with an air duct and a regulating damper. There is only one fan, air from the lower chamber is directed to the upper one under pressure, giving off residual cold in the positive chamber. The evaporator is also one, but a complex air distribution system is used.

Why does the Indesit refrigerator equipped with the full Know Frost not freeze or does it begin to freeze badly? Supposed reasons:

Defrost timer or fuse defective. The defrost system will not turn on, a fur coat grows on the evaporator, and this leads to a further increase in temperature. A blown fuse will not allow the heating element to turn on to defrost the evaporator.
The refrigerant circulation system failed due to a lack of freon, a clogged capillary tube or a compressor breakdown.
Thermostat is defective. If the compressor does not switch off, the defrost will not start.

The result is that the upper chamber in the Indesit refrigerator does not freeze well. If the freezer with Know Frost does not freeze, the reason may be a malfunction of the fan or refrigerant circuit.

Due to the No Frost system, the Indesit refrigerator may not turn on, or start for a few minutes if the timer is faulty. A breakdown of the motor-compressor or failure of the thermostat will lead to the same result. What to do if the appliance stops freezing? Defrost the refrigerator within 24 hours, dry it and contact a specialized workshop.

If the entire Indesit refrigerator with an electronic control system is broken and does not freeze, you need to check the board using special devices. Such blocks suffer from voltage surges in the network.

As a rule, all problems in a two-compartment refrigerator Indesit begin with the fact that the upper compartment does not freeze. If you do not take action, it will stop freezing the entire cabinet.

The upper compartment of the Indesit refrigerator may not freeze for reasons:

the temperature setting is incorrectly set;
faulty thermostat;
poor seal or loose elastic;
in a closed chamber, the light remains on;
not enough freon in the system;
capillary tube clogged;
bad compression.

If the temperature setting is at the maximum, the power of the device may not be enough, when the room is warm and humid, there is no ventilation. It is optimal to set the medium mode, then less cold will be sent to the freezer.

A malfunction of the thermostat can be determined if the upper chamber in the Indesit refrigerator is very cold, the compressor works without interruption, the walls of the chamber are frozen over. But the reason when the compressor does not turn on, the starting relay does not work and the refrigerating chamber does not freeze is the same. You can determine the problem node yourself - the light is on in the chamber, the compressor does not respond to switching tasks. No click is heard when the thermostat is turned off.

If the seal is broken, the inside of the chamber will be covered with a fur coat, changing the heat sink. The Indesit refrigerator will not freeze well, the compressor will start to wear out. It is necessary to install the door correctly, or replace the sealing rubber.

Over the years, the welding places of the pipes of the aluminum evaporator with a copper or steel circuit are destroyed, corrosion of the door heating circuit is possible, damage to the evaporator during defrosting. With the leakage of freon in the refrigerator, Indesit does not freeze badly not only the upper chamber, but also the freezer. Gradually, the gas evaporates, the compressor works without stopping. After defrosting the refrigerator, the lower chamber does not freeze. It is required to find the leak and pump in freon. Only a specialist can find and eliminate the cause of the malfunction.

Any breakdown in the refrigerator requires immediate repair. It is possible to lengthen the service life of the device by ensuring the correct temperature regime by timely defrosting the chambers.

We offer you to watch a video of refrigerator repair with a complete Know Frost.

You can tell a lot about the repair of Indesit refrigerators and 1 article is clearly not enough for this, since this brand produces not only a large number of models, but also refrigerators with different defrosting or freezing systems (here whoever wants it is called). I will try to succinctly tell you about each of these systems, but still I will pay more attention to the crying defrosting system, since today, these are perhaps the most common refrigeration units in the homes of residents of the former Soviet Union, I will pay special attention to automation, because it is the malfunctions associated with a thermostat or relay, you can do it yourself, as for a freon leak or a motor replacement, in such cases you cannot do without the help of a master. There is also an important point related to the engine, that is, the compressor, the main thing here is to correctly diagnose its breakdown. It often happens that at first glance the motor is out of order, but as a result it turns out that this part is quite working. Now, after you have done a small introductory part, you can start looking for the causes of the malfunction of your refrigerator.

In more than 50%, the thermostat or relay fails, but the real scourge for these refrigerators is the leakage of freon in the foamed part of the case, below I will try to list all the malfunctions that are associated with this defrosting system. Here I would immediately like to note that if the master has identified a freon leak in your refrigerator and recommends that you install a crying evaporator on the back wall in the refrigerator compartment, then it is advisable to agree with this, do not be greedy. This is so, a small digression, but on the case, and now I will list everything that can break in your coldness

Motor start relay - In this case, the motor simply does not start or starts for a few seconds
Fridge motor burned out - The signs are the same as in the first paragraph, plus if you hear a barely noticeable hum of the engine, then most likely a kirdyk came to him, read the rest below
Freon leak - No cold in the refrigerator compartment or frost in the freezer
Capillary clogged - The same as in the previous case, that is, in paragraph 3
Broken thermostat - The refrigerator does not turn on or works in the wrong mode

Then we will disassemble everything in order and first of all, we will start with the most important thing, that is, with the start-up relay and the refrigerator compressor

Now let's add a little more, this paragraph. It happens that the engine runs for an hour or 2, but after it is turned off by the thermostat, the compressor cannot start, this is more due to the overheating of the motor and therefore, until it cools down, it will not work. There is only one reason, it sticks the piston on the compressor and fix it, such a malfunction, you can only change the engine. In general, if the refrigerator engine does not start, then first of all, remove the relay and take it to the workshop, a master, who thinks a little, will immediately determine the breakdown. It is very important, do not poke every 5 seconds, plug into the outlet, this cannot be done, the minimum interval between turning off and on must be at least 10 minutesHere it is, the biggest mess, in two-compartment refrigerators with a drip thawing system. As you guessed, we will talk about a freon leak and a clogged capillary. If the injection tube, that is, the capillary, is clogged, then first of all you need to look at the heat exchanger, this is a metal grill on the back of the refrigerator, it is also called a condenser or a radiator. In general, it is advisable to check how this heat exchanger heats up, if two rolls are very hot to the touch, and the rest are cold, then most likely we are talking about a clogged filter or capillary tube. Without a master, you cannot make such repairs with your own hands. For complete reliability of the picture, it is necessary to release the gas from the system, drop the air pressure into it and see the passage of the capillary tube at the outlet. If, at the exit from the capillary, the air blows well, that is, as expected, then it is necessary to insert a crying evaporator. An illustrative example of such work, I showed in the video, which you can watch below, and now let's look at the signs that a freon leak has occurred in the refrigerator

The temperature in the refrigerator compartment has risen

On the back wall of the refrigerator compartment, there is a swelling of plastic, that is, the so-called flapper, you can easily determine this by pressing on the plastic, if there is a free space under it, then a crying evaporator must be installed 100%

The temperature in the freezer is too low and the temperature is too low to shut off in the refrigerator

Unpleasant smell of oil is felt

The refrigerator does not turn off

In the corner on the back wall of the refrigerator compartment, there is ice, that is, a block of ice

Watch the video. What to do if there is no cold in the upper compartment of the Indesit refrigerator

1 - electric motor
motor-compressor
1.1 - working winding
1.2 - starting winding

3 - thermostat contacts

10 - defrost button

11 - protection relay
11.1 - bimetallic plate
11.2 - relay contacts

12 - starting relay
12.1 - relay coil
12.2 - relay contacts

a) Defect in the bimetallic plate 11.1 of the protective relay: determine the malfunction and replace the part.
b) Defective coil (or other current sensor) 12.1 starting relay: determine the malfunction and replace the part.
c) Breakage of the starting winding of the electric motor 1.2: we determine the malfunction and call the repairman of refrigerators to replace the motor-compressor.

a) Freon leakage: Determined as follows - if the compressor is running and the amount of freon is normal, the condenser should heat up, touch it with your hand (carefully, it can heat up to 70 degrees), if after prolonged engine operation it remains cold, then the system is depressurizing ... Disconnect the refrigerator from the network and call the wizard.
b) Violation of the thermostat regulation. The device can be temporarily replaced with a known good one, if the refrigerator works in normal mode - return the faulty thermostat for adjustment.
c) Decreased performance of the motor-compressor. This is a hard-to-diagnose malfunction, call the wizard

a) Violation of the thermostat regulation. The device can be temporarily replaced with a known good one, if the refrigerator works in normal mode - return the faulty thermostat for adjustment.
b) The rubber of the refrigerator door seal has lost its shape and elasticity. If the door does not close tightly, warm air will enter the refrigerator, the temperature regime will not be maintained and the motor-compressor will work with increased load. Carefully inspect the seal, defective - replace. (see also next point)
c) The door of the refrigerator led. The door geometry is adjusted by changing the tension of the two diagonal rods located under the door panel. For more information on how to adjust the door, see Removing gaps in refrigerator doors.
d) Decreased performance of the motor-compressor. This is a hard-to-diagnose malfunction, call the wizard

a) If the refrigerator turns off from time to time, but the temperature in it is too low - slightly turn the thermostat knob counterclockwise, if this does not help - see Violation of the thermostat adjustment
b) The fast freezing button is forgotten in the pressed position - turn it off.

Many malfunctions that subsequently lead to costly repairs to the refrigerator arise as a result of improper operation of the unit. Here are some simple tips:
a) If the refrigerator has been turned off for any reason, wait five minutes before turning it on again. This process can be automated, see the timer to delay the inclusion of the refrigerator

b) If the refrigerator has been defrosted, do not load it with food before it runs empty for one cycle and turns off.

c) Do not set the thermostat pointer further than the middle of the scale, this will not give a significant gain in temperature, and the engine will work in a tense mode.

d) On some refrigerators, a “crying evaporator” is located in the back of the refrigerator compartment (on the back wall). Do not lean food against it and do not forget to clean the water drain underneath.

e) When defrosting the refrigerator, it is unacceptable to pick off the ice using hard objects, defrost only with warm water.

f) On some refrigerators there is a “quick freeze” button (usually yellow) this button closes the thermostat contacts and the engine runs without shutting down. Do not forget this button is pressed.

g) Do not store vegetable oil in the refrigerator, oil is not required, and the rubber of the refrigerator door seal loses its elasticity.

h) Do not place the refrigerator near heating appliances.

The reason for the appearance of water in the refrigerating chamber is defrosting, as a result of improper operation or loss of tightness. Even a small puddle is a bad sign. The refrigerator has time to thaw and flow - look for leaks, as a rule, the sealing rubber does not fit tightly in the door. However, the reason may be trivial, the refrigerator doors were not closed tightly.

When something needs to be urgently cooled in the refrigerator, but to a great surprise it does not work, the bewilderment of any owner of household appliances is quite natural. It is a pity, such cases are not isolated, therefore, as paradoxical as it sounds, but we immediately begin to show enthusiasm and armed with our general ideas about the device of the refrigerator, we try to repair it. It is not so important whether you purchased the Ariston, Whirpool model or bought the Indesit refrigerator, malfunctions (does not freeze, turns off every 5 minutes, etc.) may occur even after a short period of operation. What to do in this case? How to find out why the refrigerator does not freeze and whether it is possible to solve the problem with your own hands - you will learn from this article.

Repairing a refrigerator is not an easy task and the help of a master will not hurt you, this will be the easiest way out of the situation. There are, of course, such breakdowns that even a person far from technical work can eliminate it at home.

Consider the simple reasons why the refrigerator does not freeze well:

Depending on what exactly is the reason for the malfunction of the Indesit refrigerator, if it does not freeze, the approach for repairing much-needed household appliances will also vary. Let's consider the main methods.

If the problem is with freon leakage, then you need the help of a professional. He will push the system, vacuum and add the required amount of freon. If you are determined to do this work yourself, use our instructions from the article "Replacing freon in the refrigerator with your own hands."

If the thermal electric motor breaks down from the No Frost system, the refrigerator breaks down. In this situation, the cooling radiator stops defrosting. You will just see how the fan of this system is frozen to the ice. You will have to do a complete defrost of the No Frost refrigerator and replace all the broken parts of the electric motor.

Important! Often the cause of failures and failure of expensive parts of refrigeration equipment are power surges.

To eliminate this unfavorable factor and protect your appliance from damage, use our advice on choosing a voltage stabilizer for your refrigerator.

The banal problem of a malfunction of the Indesit refrigerator, due to which it does not freeze when water and air enters the system during operation. These foreign substances accumulate in the filter drier, which makes the passage of Freon difficult.

It is very simple to understand and define this “ailment” of household appliances, you will hear the compressor howling, working in load. In this case, contacting the master is inevitable.

Please note that the Indesit refrigerator does not freeze for this very reason.

This malfunction can be recognized by sound. The operation of the compressor consists in the periodicity of turning on and off the pump, with the help of which the cooling liquid - freon is transported. If the compressor does not start, then check the starting circuits. Here again you will need to contact a specialist, because this is a complex multistage technological process.

It is necessary to check the operation of the timer. It might be stuck in defrost mode. Accordingly, if this is the case, then when this function is turned on, the compressor does not work and the refrigerator will not freeze.

To remedy this situation, insert a screwdriver into the adjusting screw and unscrew with extreme care clockwise one-fourth of a turn.

One of the reasons why the upper chamber does not freeze may be a thermostat, a relay-regulator or a control unit. In these cases, unfortunately, you will again have to seek help from a specialist or a service center.

An exception is the repair of the relay-regulator. It can be disassembled and the inner salt rod can be replaced if it is burnt out. Most often, the Indesit refrigerator encounters these problems when it does not freeze.

Smart home appliances must be handled with delicate care. It is not for nothing that there is a saying in everyday life: “what is good for a Russian, then death for a German”. Therefore, it is necessary to take into account all the subtleties and specifics of the operation of refrigerators from different manufacturers and provide appropriate care for imported equipment.

The most important recommendations in order to exclude malfunctions of the Indesit refrigerator, as a result of which it does not freeze or gives other errors, are the following:

The surface where the refrigerator stands must be flat. Height correction is carried out by unscrewing / screwing in the leg.
Also, do not forget about the correct placement of food in the freezers. They should not be close to the walls. Foods tend to freeze, and removing them you can easily damage the tightness of the freezer.
If you have an old refrigerator, then defrost it periodically. During defrosting, do not try to speed up the process by picking out pieces of ice with sharp objects. You can break the seal. New modern refrigerators do not need mechanical defrosting, but a refrigerator of any generation does require washing.
Never put hot dishes or food in the refrigerator, for obvious reasons - it should freeze. The entire system is configured in such a way that the increased temperature will damage your home appliance.
The refrigerator should not stand in the house near any household appliances that emit heat: heating lamps, stoves, heating batteries, etc.

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In the event that you are not confident in your technical knowledge and powers, do not take unnecessary risks. Be especially careful when carrying out such a repair plan. Consider all the subtleties and your capabilities, otherwise you run the risk of suffering - both financially and mentally. Your visit to the service center will be inevitable and you will have to repair most of the refrigerator when replacing one part. Therefore, weigh the pros and cons, make a wise decision, call the master at home. A specialist will quickly and with pharmacy accuracy determine the malfunction. The cost of the services of a master at home and the prices of spare parts differ and it is often possible to correct the situation in a budget option.

Not every consumer knows that the repair of any home appliances, including the refrigerator, can be done independently without contacting a service center. Even a novice master can deal with simple breakdowns. Today we will try to figure out how to replace the refrigerator thermostat with our own hands. And also let's talk about what kind of device it is and what are its characteristics and purpose?

First, let's figure out what it actually is. A thermostat is a device that monitors the t˚C in your refrigerator and gives signals to the compressor, causing it to turn on and off depending on the degree of cooling in the compartment. It works very simply. The thermostat is a relay. On one side of it there is a special hermetically sealed tube filled with freon. On the other hand, the contacts of the electrical circuit, with their help, the compressor is controlled.

See also - How to adjust the thermostat (thermostat) in the refrigerator

Everything works very simply. The end of the capillary tube is attached to the evaporator. Since it is filled with a refrigerant, for example, freon, then with an increase in t˚C inside the refrigerating chamber, the pressure in it increases. This closes the corresponding relay contacts and turns on the compressor. After a while, t˚C in the refrigerator compartment decreases, the pressure in the bellows tube drops and the contacts open. The compressor turns off.

Another important component of the thermostat is the spring, which compresses and expands its contacts. It depends on her how and when they will work. For example, in order to open the contacts at a low pressure in the system (low t˚C), less effort is needed, for a large one - more. The tension of the spring is adjusted using the thermostat switch knob. This is how the temperature regime changes in the Atlant refrigerator and other models with mechanical control.

Some models of refrigerators are equipped with an electronic thermostat. It consists of a temperature sensor and a control module. In modern models, several sensors can be installed for each cooling zone. If your refrigerator has an electronic temperature control mode, it may require specialized knowledge to repair it.

See also - 5 models of refrigerators that we do not advise you to buy

Well, we have disassembled the device and characteristics of the device, we move on to the next question. In order to repair the thermostat with your own hands, you first need to find it.

This is not difficult to do. The thermostat is always associated with a knob or button for setting the temperature regime in the chamber. Depending on the refrigerator model, the thermostat can be installed:

inside the refrigerating chamber;
outside the refrigerator.

This arrangement is typical for earlier models of Atlant refrigerators and others. If you open the refrigerator, you can see a small plastic box placed on one of the panels. This is the thermostat. To get to it, you just need to remove the temperature selector knob and unscrew the protective case.

Modern refrigeration units are arranged a little differently. In them, the device we need is located outside the refrigerator chamber. It is usually located at the top of the refrigerator, above the door. But it may be in another place.
In any case, the principle is the same - the temperature controller is located in the same place as the switch knob. To get to it, you need to remove all protective parts.

See also - Why does a refrigerator need a voltage regulator

Do we really need a temperature controller? Maybe the cause of the breakdown is completely different? Most often, the signs of a breakdown of a thermostat are obvious: (See also: Why the refrigerator does not freeze - what to do?)

the refrigerator works without stopping and does not turn off on its own;
the unit begins to freeze strongly in the refrigerator compartment, where, in normal mode, there should be, albeit a low, but still positive temperature;
the refrigerator shuts down spontaneously and no longer makes any sounds.

Each of these faults can be caused by the temperature controller. In order not to spend money on calling a specialist, we will try to fix the breakdown with our own hands.

To be sure that the temperature regulator is the cause of the malfunction of the Atlant refrigerator or any other, you need to do the following:

disconnect the refrigerator from the power supply;
remove all food from it and defrost it well;
move the thermostat knob to the “Max” position or turn on the freeze, if any;
place a thermometer on the middle shelf of the refrigerator compartment (not in the freezer), it is best if it also has a negative measurement scale;
turn on the refrigeration unit (empty, no food);
wait 2 hours, then quickly remove the thermometer and evaluate its reading.
On the "thermometer" you should see at least 6-7˚С. If this is not the case, repairs are imminent. And if the thermostat in your refrigerator is electronic, then it is unlikely that it will be possible to carry out repairs with your own hands.

There may be only 3 reasons:

broken thermostat;
the motor start relay has burned out;
the engine of the refrigeration unit burned out.

The last two reasons are, of course, very serious. But we are now interested in the first one. To make sure that you need to replace the thermal relay, you need to check it:

disconnect the refrigerator from the network;
find the location of the thermostat and remove the protective covers;
inspect the device carefully.

Most often, the temperature controller has three to four colored wires. One of them is usually yellow with a longitudinal green stripe. This is grounding. We won't need it, so set it aside to avoid accidentally snagging it. All wires that fit the body of the thermal relay, short-circuit each other directly. If, after turning on the refrigerator, you hear a steady hum of the engine, it means that the temperature regulator is out of order and you will have to replace it with a new one.
By the way, the wires suitable for the thermostat have the following purpose:

orange, red or black - connects the thermostat to the motor;
brown - zero, the wire leading to the outlet;
white, yellow or green - leads to a light indicating that the refrigerator is on;
striped yellow-green - ground.

If you find such a nuisance, several factors may be the reason. So first you need to do all the steps described in the first paragraph. If the thermometer readings were + 6 ° C or less, quickly turn the thermostat adjustment knob until the refrigerator is turned off.
If the refrigerator turns off, everything is in order. Not? It will be replaced. In the event that the refrigerator is turned off, we leave it to work without food for at least 5-6 hours. After that, we begin to mark the time intervals between turning the compressor on and off. For a properly operating refrigeration unit, this period should be approximately 40 minutes. If you did it less, "add" some coldness, that is, turn the switch a little to the right, clockwise.
If everything went well, you can load the groceries. Not? The temperature controller will still have to be replaced.

Do-it-yourself thermostat repair does not take much time. For example, let's take a refrigerator of the Atlant trademark:

remove the cover of the upper hinge and unscrew the bolts under it;
remove the refrigerator compartment door;
further, remove the plug in the refrigerator roof and unscrew one screw (most often it has a built-in hexagon);
we unscrew the screws holding the roof (located at the back) and remove it;
remove the temperature control knob;
take out the temperature regulator by unscrewing 2 self-tapping screws that secure the bracket;
change the node to a new one and perform all actions in the reverse order.

In principle, wherever the thermostat is located, its repair will look about the same:

get to the detail;
disconnect the capillary tube from the evaporator body;
carefully pull it out of the case;
disconnect the relay itself;
carefully insert the new bellows tube and secure it to the evaporator;
connect all the necessary wires and attach the relay in place.

If this is your first time doing this kind of work, take pictures of your every step with your phone or camera. The photos will help a lot when assembling, if you forget what and where was connected.

Video (click to play).