Atlant refrigerators do not freeze - how to find and fix the problem?

The Atlant refrigerator does not freeze

It happens that as a result of improper operation or old age, the Atlant refrigerator has stopped freezing and requires repair. The model range includes single-chamber freezers and refrigerators, combined models, with one or two compressors, charged with freon or isobutane. All types of defrosting are used. Malfunctions of each device, symptoms, and solutions are included in the operating instructions.

If the Atlant refrigerator starts to freeze slightly, you need to figure out what happened. All devices, regardless of configuration, are equipped with:

circuit for extracting cold from the chamber;
control system to maintain parameters within the design range;
sealed thermostat with shelves and containers for storing food.

The device takes energy from the household network. The room requirements correspond to the climate class of the device. Why the Atlant refrigerator does not freeze well depends on many reasons. Some of them are easy to fix on your own. A technician will be needed to fix equipment failure.

The Atlant refrigerator does not freeze - what to do?

You need to figure out exactly how the refrigerator does not freeze. If the device consists of two cameras, you need to determine the functionality of each.

First of all, if the Atlant refrigerator does not freeze, the power indicator does not light up and the compressor does not work, you need to check whether there is voltage in the network. The socket may have broken, the contacts in the connection have melted, or the wire has come off. But if the light in the chamber is on, there is power.

You need to make sure the thermostat is in the working position and not turned off. If the compressor does not work, set the task to maximum, listen to see if the motor turns on. The compressor may start for seconds and stop again with a loud click. Then set the thermostat to position 0. The relay should click. Quiet - the thermostat has failed, without it the compressor will not start. The unit needs to be replaced.

If the compressor runs without stopping, and the chamber becomes warmer, a refrigerant leak has occurred and the motor is idling. You can make sure if you touch the capacitor - the grille on the back side. Without freon it will not heat up. This means the tubes or evaporator are damaged. Often this incident happens after defrosting. The Atlant refrigerator does not freeze because the ice was removed with a hard object and the evaporator tube was damaged.

It happens that the Atlant refrigerator does not freeze, but the compressor is working and the condenser is warm. The chamber quickly becomes covered with a snow coat and the temperature in it rises. Check to see if the sealing rubber is worn out. Sometimes ice prevents the door from closing tightly. Fresh air comes in constantly, cools, and the condensation turns into snow. The cold from the evaporator does not pass through the thick ice. The temperature is gradually rising. It is necessary to close the gap and defrost the device during the process.

In a chamber with drip defrosting, the drain hole may become clogged, the water does not drain, and ice forms. Gradually the temperature in the refrigerator will begin to rise. If a No Frost air cooling system is used, the defrost fan may break. In this case, the condensate on the evaporator will freeze and block the air labyrinths with ice. The Atlant refrigerator will stop working. What to do? make sure that the fan is not making noise, there is ice in the chamber and turn off the refrigerator to defrost and dry for at least a day. Then call a technician who will determine why the Atlant refrigerator is not freezing and fix the problem.

An alarm on the control panel must not be ignored. You should take action or call a specialist. Operating the device with a malfunction will lead to costly repairs.

When you can't do without a master

One of the first signals that your refrigerator gives in the event of a malfunction is a lit red light. It is this that shows that a serious malfunction has occurred in the operation of the refrigerator, which requires the attention of an experienced technician. Below are the main problems that may arise when the red indicator lights up:

shortened operating cycle of the refrigeration unit;
malfunctions of the motor-compressor;
rapid accumulation of snow “coat” on the back side of the device;
The refrigerator body is electrocuted.

Of course, if you have some knowledge in the field of electrical engineering, you can try to eliminate these defects yourself. Let's consider each case separately.

A situation is possible when, due to a malfunction of the thermal relay or increased voltage in the motor circuit, the refrigerator begins to stop working immediately after being turned on. To find out the cause of the malfunction and carry out repairs, you should perform a number of actions.

Measure the voltage in the electrical network.
If the voltage does not exceed the norm, it is necessary to remove the thermal relay and connect the electric motor directly.
If the refrigerator is functioning properly, you should replace the broken relay with a working one.

Thermal relay

If your refrigeration unit is running non-stop, pay attention to the room temperature and the position of the thermostat knob. If the latter is in standard condition and the temperature in the room does not exceed normal, it is necessary to carry out an initial diagnosis of the unit.

If the thermostat knob is in the normal position, but the refrigerator operates continuously, it is possible that the cause of the breakdown is a failure of the thermostat.
If a freon leak occurs, the characteristic frost will not be present on the evaporator tubes. In this case, it is better to contact a repair shop, where they will determine the exact location of the refrigerant leak and make repairs.

There are many reasons for this malfunction:

insufficient fit of the door to the refrigerator body;
increased room temperature;
a situation where hot food is stored in the refrigerator;
The refrigerator operates in low productivity mode.

The first thing to do in the event of a malfunction is to check whether the seal fits tightly to the body of the door and refrigerator. If this is not the problem, your device may not be operating at full capacity in a fairly warm room. Change the power to a higher level and the problem should resolve.

Snow "coat"

If, upon contact with the body of the refrigerator, you feel even a slight discharge of electric current, it means that the bare wires in your device are in contact with the body. A qualified technician will identify and isolate the problem by measuring the insulation resistance of the wires.

The refrigeration unit includes: compressor,

, freezer compartment static evaporator,

crying

» refrigeration compartment evaporator,

-dryer,

pipeline. The advantage of the design is a remote, non-foamed capacitor. The disadvantages are a steel heating circuit around the door perimeter - the most likely occurrence of leaks is after 5 years of operation on the pipeline section, the pipe is rigid and not tempered, microcracks can occur already when laying the pipe on the conveyor. During operation, the temperature in this section of the pipeline reaches 90 C.

without door heating circuit

The food in the freezer compartment is cooled by a static evaporator. Defrosting the freezer is manual. Good thermal insulation allows defrosting no more than once every 6 months.

The products in the refrigerator compartment are cooled by the XO evaporator, located behind the rear wall of the XO. The capillary of an indirect thermostat is connected to the evaporator

temperature control, which fixes the evaporator temperature and turns off the motor-compressor when the set temperature is reached. Defrosting of the refrigerating chamber is automatic.

When the compressor is turned off, the evaporator temperature rises to positive temperature until the thermostat contacts are closed again, and all condensate frozen on the rear wall melts. Water is removed through the condensate drain collection channel, located at the bottom of the rear wall of the cold storage unit, into the condensate collection tank. The container is attached to the refrigerator compressor, the operating temperature of the compressor reaches 90 C and the water quickly evaporates into the environment.

Refrigerator defects

Doesn't turn on

1 Freon leakage from the thermostat bellows. In this case, the pressure in the bellows drops, contacts “3” - “4” through which the motor-compressor is powered open. The refrigerator does not turn on. If freon leaks incompletely, the refrigerator operates with a low operating time ratio, and the temperature in the refrigerator is increased.

2 Defective contact group of the thermostat. There is no circuit between contacts “3” - “4”, the refrigerator does not turn on. 3 Breakage of compressor windings. An open circuit can be on the working, starting, or two windings at once. When the refrigerator is plugged in, the compressor does not start, the temperature of the compressor housing is room temperature.

4 Interturn short circuit of the working winding of the compressor electric motor. The compressor starts, due to the fact that the winding turns are closed, the winding resistance is reduced, and an increased current passes through the start-up relay. The relay is activated to turn off the compressor within a minute. The relay clicks and the compressor turns off.

After the relay cools down, the start attempt is repeated. When the refrigerator is plugged in, the compressor housing becomes very hot. 5 Interturn short circuit of the starting winding of the compressor electric motor. Signs of a defect are similar to point 4. 6 Jamming

compressor motor. The compressor turns on and the hum of the electric motor is heard, however, there is no rotation of the electric motor, the compressor does not create pressure, the resistance of the windings corresponds to the nominal value.

7 Defective start-up relay. The compressor does not turn on or turns on for one or two minutes. The winding resistance corresponds to the nominal value. When diagnosing a compressor, it is necessary to take into account the reliability of this refrigerator unit. As a rule, the above compressor failures occur due to the fact that the compressor stops turning off and it is necessary to establish the cause (automation, freon leaks)

does not freeze 1 freon leak from the refrigeration unit circuit - signs.

Read more: Heat recovery in ventilation systems, operating principle of the circuit

- cold condenser of the refrigeration unit - in the refrigeration chamber on the rear wall, ice may freeze in the area of the evaporator where freon residues boil, the rest of the wall is clean, without frost.

In case of incomplete leakage of freon, due to the fact that the refrigeration appliance operates without turning off, the temperature in the freezer compartment can be negative, reaching the passport specifications -18 C and below.2 clogging
capillary pipeline of the refrigeration unit In a refrigeration unit charged with R600a, in contrast to units operating on R134a, the defect is practically not encountered; it is more likely to encounter the defect “moisture in the system”
».

- the refrigeration appliance operates without shutting off - increased temperature in the refrigeration compartment, when the capillary cross-section is not completely covered, due to the fact that the refrigeration appliance operates without switching off; in the freezer the temperature can be negative, reaching the passport specifications -18 C and below - the first leg of the condenser is hot , subsequent ones - room temperature - in the refrigerator compartment on the back wall ice may freeze in the area of the evaporator where the freon passing through the capillary boils, the rest of the wall is clean, without frost - when the refrigerator is turned off from the network during the first 30 seconds, a sharp decrease in the filter temperature is observed - dehumidifier of the refrigeration unit - freon returns from the capillary and boils in the filter - when the process tube of the compressor is broken, a small part of the freon comes out through it.

(taking into account the pressure of R600a, break the process tube 5 minutes after turning off the refrigerator from the network) if the capillary is completely clogged, the pressure in the tube will be below atmospheric, air will be sucked into the compressor - when the capillary is cut off after the dryer filter, all the freon under pressure will come out of the filter - when measuring the suction pressure on the filling tube, the dynamics of pressure growth when the refrigerator is turned off - the pressure increases slowly, when the capillary cross-section is completely blocked, the pressure does not increase, if the pressure gradually increases to a certain level, and then increases abruptly - the presence of moisture in the system, freezing at the outlet of the capillary into the evaporator .

3 filter clogged

- dehumidifier - increased temperature in the refrigerator compartment - increased temperature in the freezer compartment - the refrigeration appliance does not turn off - the first leg of the condenser is hot, the subsequent ones are at room temperature - if the compressor process tube is broken, a small part of the freon comes out through it, if the filter is completely clogged, the pressure in the tube will be below atmospheric pressure, air will be sucked into the compressor

When the capillary is cut off after the dryer filter, there is a small output of freon from the filter, when the filter is completely clogged, there is no exit, when the filter is cut off, freon comes out under pressure from the condenser 4 loss of performance of the motor - compressor - increased temperature in the refrigerator compartment - increased temperature in the freezer compartment - refrigerator The device works without turning off - the compressor turns on, the winding resistance corresponds to the nominal value.

As a result of a defect in the valve group, the compressor does not create operating pressure, the refrigerator does not gain temperature, and operates without shutting down. Often this defect is accompanied by extraneous metallic noises during compressor operation. To confirm the defect, it is necessary to cut off the compressor filling tube, cut off the filter from the condenser, connect the pressure gauge manifold to the condenser, turn on the compressor, and check the air pressure created.

If you notice that your Atlant refrigerator is not working as it should, do not rush to call a repair shop. There are problems that you can fix yourself. In this case, we are not talking about the need to redo the refrigerator circuit.

Atlant two-chamber refrigerator does not freeze

A two-chamber refrigerator can be with one or two compressors, with No Frost, drip or manual defrosting with electromechanical or electronic control.

Most often, technicians call for a malfunction of an Atlant refrigerator with one compressor - the bottom freezes, but the top does not. A common heating circuit is used for two chambers with refrigerant distributed to 2 evaporators, proportional to demand. The feed is carried out using a magnetic valve. If the upper chamber does not freeze, the reason may be:

the thermostat is broken;
loosely closed circuit;
the magnetic valve got stuck;
insufficient freon or a plug in the capillary tube;
in a compressor malfunction, compression is broken;
The temperature range for this climate class of refrigerators is not maintained.

You can fix the gap in the door yourself by adjusting it, cleaning it, or replacing the seal. Create the desired temperature in the room and install a fan.

In a two-chamber Atlant refrigerator, the upper chamber may not freeze or overfreeze food if the thermostat is faulty. It is not repaired, the unit is replaced. You can do this yourself using the step-by-step instructions in the video.

A faulty circuit may be due to a misaligned door or a worn rubber band. The door needs to be aligned vertically and the rubber band needs to be replaced. Signs of air leaks may include an icy, loose coat inside the chamber and an alarm on the panel.

It is up to you to make sure that the temperature in the room meets the requirements in the instructions. In the Atlant refrigerator, the upper chamber will not freeze well if the thermostat is set to the maximum value. The power of the device may not be enough if the room is hot. The compressor works without stopping and wears out.

Leave the rest of the troubleshooting to a technician. Before calling it, the refrigerator must be defrosted and dried.

Atlant refrigerator – the freezer does not freeze

If the Atlant refrigerator is equipped with two compressors, it is easy to find the reason why the freezer is not freezing. They repair it like a freezer, checking the serviceability of the compressor, thermostat and the presence of freon.

When the single-compressor Atlant refrigerator does not freeze, but the freezer is working, defrost the entire cabinet. If after this the cold disappears everywhere, the cause has been identified, a refrigerant leak. There will be a lot of repairs associated with the discovery of the fistula and the injection of freon. At the same time, you need to know that excess refrigerant acts the same as its deficiency. Refueling should be entrusted to a specialist. You can determine the excess by the sign shown in the photo, frost on the return line.

The lower chamber of the Atlant refrigerator may not freeze if the compressor breaks down, the thermostat fails, or the fan in the No Frost system does not work. The cause of failure may be icing of the chamber. If the Atlant refrigerator has one compressor, the freezer does not freeze, which means that both chambers are not working.

What do you need to know to establish the correct operation of the refrigeration unit yourself?

If everything is in order with the refrigerator, then its motor works cyclically - it pumps up the required temperature and then turns off. The time intervals between periods of operation should always be approximately the same, otherwise an obvious defect will appear - the refrigerator does not freeze well. In the vast majority of cases, the cause is a failure of the temperature sensor in the upper or lower chamber, or a breakdown of the control unit.

The fact is that the temperature inside the refrigerator is controlled using special sensors. It is they who transmit the current indicators to the control module, which sends a signal to the compressor. If the Atlant refrigerator runs non-stop and gets very cold, this is a sure sign of a violation of the temperature sensor data reading.

The second reason why the refrigerator does not turn off is the failure of the control unit. Despite the functionality of the thermostat, further transmission of the signal to the motor is blocked by a faulty control module. The visible result is the same as in the previous case - the refrigerator does not turn off, but its compressor is constantly running.

Professional diagnostics will allow you to determine the true cause of the breakdown. In two-chamber Atlant refrigerators with one compressor, one of the compartments (most often the refrigerator) may not freeze, but everything is fine with the freezer. Then most likely the solenoid valve, which controls the distribution of refrigerant in each of the working circuits, has failed.

When unpacking and installing the new product, the shipping bolts that held the compressor springs were not removed.

The refrigerator itself was not leveled correctly or was in contact with the furniture. The vibration from the motor is transmitted to other objects, which is why the noise is heard. Check that the refrigerator is installed correctly.

Compressor wear

Relevant for old refrigerators with a service life of 10-15 years or more. During this period, backlashes begin to form between parts of the parts inside the motor, and the entire structure is further loosened by vibration. Your Atlant refrigerator will not break down right away, but it is better to call a technician who will repair the compressor or install a new motor.

In a refrigerator with a No Frost system, a sound similar to a grinding sound is heard. It is quite possible that the cause will be friction of the fan against a frozen layer of ice. The simplest solution to the problem is to turn off the refrigerator and completely defrost it (at least 10-12 hours). Then turn it on again. If the sound continues, the fan may need to be replaced or the auto defrost system may need to be repaired.

In the case when the compressor hums and then a sharp click is heard and the motor turns off, the cause of the breakdown is the start relay, which needs to be replaced. For replacement, we recommend contacting a refrigerator repair service in the city of Saratov.

First of all, understand the structure of your Atlant refrigerator. The temperature is regulated using the thermostat knob. If you set it to “I”, this means setting the most minimal cooling. When the thermostat knob is set to “7”, the Atlant refrigerator will operate in maximum cooling mode. A o indicates that the device is turned off. Look at the photo to see what the thermostat looks like.

Read more: Bosch refrigerators TOP 4 best models reviews which one is better to choose and why

The thermostat knob should be set to one position or another, depending on the following factors:

ambient temperature value;
how many products are stored inside the unit;
how often the door opens, etc.

If after this the cooling is insufficient, then it is necessary to change the position of the control damper, which is located in the pan. The set temperature is maintained in the system automatically.

Three types of compressors are available for the refrigerant used (freon): R-12 for early generation devices (10 years ago), R-134 for modern models, interchangeable with previous R-12. For Atlant freezers they produce R-600 compressors, which also use R-12 and R-134a refrigerants in their work. Compressors R-134a and R-600a produced by Atlant are interchangeable with compressors made in Austria and Germany.

Brands of different types of compressors vary in power.

For R-12 these are the brands: S-K 100 with a power of 107 W, S-K 120 with a power of 143 W, S-K 140 with a power of 157 W, S-K 160 with a power of 179 W, S-K 175 with a power of 203 W , S-K 200 is 230 W.

For type R-134 brand S-KM 100 with a power of 107 W, S-KO 120, 140, 160, 175, 200, respectively - 143 W, 157 W, 179 W, 203 W and 230 W.

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