The situation when a refrigerator brand Atlant suddenly stops performing its main function always takes you by surprise. Products begin to deteriorate, and water appears on the shelves or, conversely, the cold disappears. Owners of Belarusian equipment often encounter the fact that the unit is working, the motor is humming, but the temperature inside the chambers does not drop to the required values. This may indicate either a trivial overload or a serious technical malfunction of the cooling system.
Before calling a technician or looking for a service center, it is necessary to carry out an initial diagnosis. Incorrect operation may be caused by external factors that are easy to eliminate on your own. However, ignoring symptoms often leads to more expensive repairs, so it is important to listen carefully to the operation of the unit and check the main components. In this article we will analyze in detail why Atlant refrigerator it does not freeze, and what steps need to be taken.
Modern models, such as series MHM 2808 or 4000th series are equipped with sophisticated electronics that can block the compressor from starting at the slightest failure. Older dual chamber models with a single compressor may suffer from natural seal wear or loss of refrigerant. Understanding the operating principle of your model will help you quickly localize the problem and save time on finding a solution.
⚠️ Attention: If you smell burning or see sparking in the compressor area, immediately disconnect the device from the power supply. Further operation in this condition may lead to a fire.
Checking the settings and operating mode
The most common reason why the refrigerator Atlant does not freeze is due to erroneous user actions. Often, after defrosting or a power surge, the settings are lost and the unit goes into standby or minimal cooling mode. First of all, check whether the mode "Vacation" or "Super Freeze"is set, which might not turn off automatically.
B models with electronic control, for example Atlant XM-4425, a failure in the control board can result in the signal to start the compressor simply not being received. Try performing a full reset: unplug the device for 10–15 minutes, and then turn it on again. If after a reboot the problem persists and the camera does not cool, then it is not a software glitch.
It is also worth paying attention to the position of the temperature regulator. If the mechanical thermostat knob is set to minimum (usually number 1), the compressor may simply not turn on, believing that the cold inside is sufficient. For normal operation in the summer, it is recommended to set the value 3 or 4.
Malfunctions of the thermostat and temperature sensors
The thermostat is the “brain” that commands the compressor to turn on or off. If thermostat fails, it can constantly break the circuit, and the motor simply will not start. In older manually controlled models, thermostat failure is one of the most common reasons for lack of cooling. You may hear a click, but the engine will not start.
In refrigerators with a system No Frost or Frost Free electronic sensors monitor the temperature. If the defrost sensor or evaporator sensor is “lying” and shows that the temperature is lower than the actual temperature, the compressor will not receive a command to cool. Replacing these elements requires disassembling the inside of the chamber and checking the resistance with a multimeter.
⚠️ Attention: Before replacing the thermostat or sensors, make sure that the model is compatible with the new parts. Technical characteristics vary even within the same series Atlant.
To check the mechanical thermostat, you can temporarily close its contacts. If after this procedure the refrigerator starts to freeze, then the problem is in the regulator. However, this measure is temporary and requires control to prevent food from freezing.
Problems with the compressor and start relay
The compressor is the heart of the refrigerator. If it is not working, the refrigerant does not circulate through the system and no cold is produced. It often happens that the motor itself is working properly, but cannot start due to a malfunction starting relay. This small element provides the starting impulse. If the relay burns out, you will hear a characteristic click, the hum of the motor for a few seconds and then turn off.
In more serious cases, the compressor winding may burn out or the piston group may jam. This can be determined by the fact that the engine gets very hot, hums, but does not start, or blows out automatic fuses in the apartment. In models with an inverter compressor diagnosis is more complicated, since the start is controlled by a special control unit.
Is it possible to replace the relay yourself?
Yes, replacing the start relay is one of the few operations available to a home craftsman. It is necessary to remove the back cover, disconnect the wires, remove the old relay from the compressor leg and install the new one strictly in the same position. It is important to buy a relay with exactly the same marking data.
The cost of replacing a compressor is often a significant part of the price of a new refrigerator. Therefore, if a motor breakdown is diagnosed, it makes sense to consider the economic feasibility of repairs. In some cases, it is easier to purchase new equipment than to restore old equipment.
Freon leakage and clogged capillary tube
If the compressor runs continuously without turning off, but there is no cold in the chambers, most likely it has occurred refrigerant leak. Freon can escape through microcracks in the evaporator, which are formed due to corrosion or mechanical damage (for example, due to careless defrosting with a knife). Without freon, heat is not removed from the chambers.
Another common problem is clogged capillary tube. There are very narrow areas in the refrigerant circulation system that can become clogged with oil breakdown products or moisture that has turned into an ice plug. When clogged, the compressor also works non-stop, trying to pump freon, but there is no circulation, so one of the chambers (usually the freezer) may freeze, but the refrigerator may not, or there will be no cold anywhere.
To eliminate these malfunctions, you need to call a technician with specialized equipment. It is necessary to find the leak, solder it, evacuate the system and fill with a new volume of freon. It is impossible to carry out this operation independently without a pump and pressure gauges.
Malfunctions of the defrost system (for No Frost)
In refrigerators Atlant with a system No Frost a frequent reason for the lack of cold is a malfunction of the defrost system. If the defrost heating element, timer or defrost sensor fails, the evaporator becomes coated with ice. This ice blocks the air channels, and cold air stops flowing into the refrigerator compartment.
The symptoms of such a breakdown are specific: the freezer may work normally or freeze weaker than usual, but the refrigerator compartment is warm. In this case, a layer of ice or snow is visible on the back wall of the freezer. After some time, when the ice completely blocks the channels, the cold will disappear completely.
The solution to the problem is to defrost the refrigerator during the day (at least 24 hours) with the doors open. If, after complete defrosting and turning on, the unit begins to freeze, but after 5–7 days the problem recurs, then it is necessary to replace elements of the defrost system: heating element, sensor or fuse.
| Symptom | Probable cause | Necessary actions |
|---|---|---|
| The motor does not hum, there is no light | No voltage, the plug/wire is burned out | Check the socket, power cord |
| The motor hums, clicks, does not start | The starting relay is faulty | Replacing the compressor relay |
| The motor runs without stopping, no cold | Freon leak or blockage | Call a technician to find a leak |
| Cold in the freezer, warm in the refrigerator | Clogged channels with ice (No Frost) | Defrost for 24 hours, check the heating element |
| The sound of pouring water is heard | Normal operation or freon leak | Inspect for oil stains |
The influence of seals and loading cameras
Sometimes the reason is not the technology, but a violation of the tightness. If rubber seal the door is worn out, dirty or deformed, warm air constantly enters the chamber. The compressor tries to compensate for heat loss, working for wear, but cannot cope with the load. Check the tightness of the door using a sheet of paper: hold it against the door and try to pull it out. If the sheet is easily removed, the seal requires replacement.
It is also important to distribute the products correctly. If you put a freshly prepared hot dish in the refrigerator or loaded the chamber with a large amount of food at room temperature, the unit will take a long time to come into operation. In the hot season, the load on Atlant increases, and it may not cope if it is standing near a battery or in direct sunlight.
☑️ Do-it-yourself primary diagnostics
Ensure proper ventilation of the rear wall. The distance to the wall should be at least 5–7 cm. If the refrigerator is built into a niche, make sure that there is an air inflow and outflow. Overheating of the condenser (black grille at the back) also reduces the cooling efficiency.
Frequently asked questions (FAQ)
Why does the Atlant refrigerator freeze only the upper chamber?
This is a classic sign of a malfunction of the defrost system in models No Frost. Ice has blocked the downward air passages. It is also possible that the capillary tube may freeze. A complete defrosting or repair of the defrosting system is required.
How long should a new refrigerator cool down after delivery?
If transportation was carried out in a horizontal position, the refrigerator should stand for at least 4-6 hours (preferably a day) before turning it on. This is necessary so that the oil flows into the compressor. If vertically, 2 hours is enough.
Is it possible to use an Atlant refrigerator if it does not freeze?
It is not recommended to operate a faulty unit. The compressor, running idle or in overload mode, can burn out completely, which will lead to expensive repairs. It is better to turn it off until the reasons are clarified.
What does the blinking indicator on the control panel mean?
Flashing usually indicates an increase in the temperature in the chamber above the permissible norm. This may be due to prolonged defrosting, loading warm food, or breakdown. If the indicator does not stop flashing after several hours of operation, diagnostics is needed.
Why does the refrigerator take a long time to get cold after defrosting?
In the first hours after turning on, the compressor can work continuously. The normal time to enter the mode is from 2 to 6 hours, depending on the ambient temperature in the room. If after 12 hours there is no cold, look for a malfunction.