Modern Belarusian-made refrigerators are famous for their reliability, but even time-tested equipment requires periodic adjustment of settings. Often, owners are faced with a situation where food in the main chamber begins to freeze, but in the freezer, on the contrary, the ice melts. This is a sure sign that thermostat it is broken or not working correctly. Correctly setting the temperature is not just a matter of comfort, but also a guarantee of the safety of your products and the health of your household.
Before you grab the tools or call a technician, you should understand the structure of your model. Adjustment can be made either mechanically by turning the thermostat knob, or electronically through the control panel. Atlant offers various control systems depending on the series of the refrigerator. In this material we will analyze in detail all the nuances of the settings so that you can independently restore the ideal cold balance.
Do not ignore the first signs of a malfunction. If you notice that a “coat” of ice has formed on the back wall, and the milk is quickly turning sour, it means that the system is operating in emergency mode. Timely calibration will help avoid costly compressor repairs or replacement of seals in the future. Let's look at how to correctly diagnose the problem and fix it on your own.
The principle of operation of the thermostat and temperature sensors
The heart of the cooling system is the thermostat, which continuously reads the temperature inside the chambers and sends signals to the compressor to turn on or off. In mechanical models Atlant this process is controlled by a capillary tube filled with refrigerant, which responds to thermal expansion. When the temperature reaches a preset threshold, the contacts open and the freezer motor stops. Understanding this physical process is necessary for proper setup.
In more modern models with a system No Frost or electronic control, electronic sensors (thermistors) are responsible for the temperature regime. They transmit data to the control board, which makes decisions about the operation of the compressor. An error in the readings of such a sensor can lead to the fact that the refrigerator will work for wear, trying to achieve a non-existent cold, or, conversely, completely stop freezing.
⚠️ Attention: In models with electronic control, any manipulations with the settings should be carried out only after the unit has completely defrosted, if it was working in emergency mode. An attempt to “reboot” the system without eliminating the cause of icing may lead to a repeated failure after a few hours.
It is important to consider that a thermostat is a device with a certain error. It reacts not to an instantaneous change in air temperature, but to an average value. Therefore, after each turn of the knob or change of the number on the display, it is necessary to wait time for the heat exchange to stabilize. Haste in this matter is the main enemy of correct adjustment.
Adjusting a mechanical thermostat in old models
In classic two-chamber refrigerators Atlant adjustment is carried out by turning the handle, usually located inside the refrigerator compartment or on the front panel. The scale can be marked with numbers from 1 to 7 or from Min to Max. Many users mistakenly believe that the number 1 means the minimum temperature, but in most cases this is not the case. The rule here is: the higher the number, the lower the temperature (stronger the cold).
To set the optimal mode, which will ensure the safety of food without freezing, the handle should be set to the middle position. Usually this is a number 3 or 4. If you turn the regulator to maximum (7 or Max), the compressor will work almost non-stop, which will lead to freezing of food and increased energy consumption. Conversely, position 1 may not be enough for high-quality cooling in the hot season.
- 🌡️ Numbers 1-2: Economy mode, suitable for the winter period or when the chambers are not fully loaded.
- ❄️ Numbers 3-4: Optimal operating mode for most situations, providing a balance between cold and energy consumption.
- 🧊 Numbers 5-7: Intensive cooling mode, used for quick freezing of large volumes of food or in very hot weather.
If, after setting the knob to the middle position, the temperature does not suit you, make the adjustment smoothly. Turn the dial one notch and wait at least 5-6 hours before checking again. Only this method will allow you to accurately determine how your specific piece of equipment behaves.
Electronic temperature control in models with a display
Refrigerators Atlant with electronic control, such as the XM-4425 or XM-6025 series, allow you to set the temperature with an accuracy of a degree. The control panel is usually located on the upper door and is equipped with indicators. To enter the setting mode, you often need to briefly press the temperature adjustment button, after which the current value will begin to flash on the display.
Using the “Up” and “Down” arrow buttons, you can set the desired parameters. The standard recommendation for the refrigerator compartment is +3...+4°C, and for the freezer - -18°C. It is important not to confuse the cameras when setting up, since in some models the upper camera is adjusted first, and after confirmation, the lower one. Pay close attention to the flashing indicator so as not to upset the freezer settings when trying to adjust the main compartment.
There is also a “Vacation” mode, which is often indicated by a palm tree or suitcase symbol. Activating this function increases the temperature in the refrigerator compartment to +15°C, preventing the formation of mold and odors, while the freezer continues to operate as normal. This is convenient if you are leaving for a long time, but do not want to defrost the unit completely.
What to do if the display goes out after 10 seconds?
If the control panel goes out and does not respond to pressing, the child lock may be activated. To unlock, you usually need to simultaneously press two buttons (for example, with a snowflake and a thermometer) for 3-5 seconds until a beep sounds. Look for the exact combination for your model in the technical documentation.
Super freeze mode: when and how to use
The Super Freeze function is designed to quickly reduce the temperature in the freezer to extreme values, usually to -24°C and below. In refrigerators Atlant this mode is activated by a separate button, often with an indicator in the form of a snowflake. When turned on, the compressor goes into continuous operation mode, ignoring the thermostat readings.
It is recommended to use this mode only when loading a large amount of fresh, unfrozen food into the freezer. Rapid cooling preserves the fiber structure of meat or vegetables, preventing the formation of large ice crystals that destroy the cells of the product. However, it is absolutely impossible to keep the refrigerator in this mode all the time.
| Parameter | Normal mode | Super freezing | Operating time |
|---|---|---|---|
| Temperature | -18°C | up to -24°C and below | Limited |
| Compressor operation | Cyclic | Continuous | Up to 24-48 hours |
| Energy consumption | Normal | Maximum | High |
| Risk for equipment | High with prolonged use | Wear of components |
In mechanical models, an analogue of super freezing is the forced activation of the compressor, but in modern Atlantakh electronics itself will turn off this mode after a certain time (usually 24-48 hours) or after reaching set temperature. If you turn on super freezing by accident, be sure to turn it off manually so as not to burn the motor-compressor.
☑️ Checking after super freezing
Seasonal adjustment and environmental influence
The room temperature directly affects the operation of refrigeration equipment. In summer, when the apartment is hot, heat exchange is difficult and the refrigerator takes longer to cool down. During this period, it is allowed to set the regulator to lower temperatures (closer to 4-5 divisions or +2...+3°C). In winter, when the room is cool, the load on the unit is reduced, and you can switch it to a more economical mode.
However, there is a critical nuance for single-compressor models. If the room temperature drops below +16°C, the refrigerator thermostat may “think” that the cold has already been reached and not turn on the compressor. As a result, the freezer begins to defrost. To operate in such conditions, some models require the installation of a special winter kit or switching to the “Winter” mode, if such a function is provided by the design.
The placement of the refrigerator also plays a role. If Atlant stands close to the wall or next to the battery, the cooling efficiency decreases. In such cases, even the maximum setting of the thermostat may not give the desired result. Provide a gap of 5-10 cm from the back wall to the wall for free air circulation.
Diagnostics of faults when adjustment is impossible
There are situations when adjusting the thermostat does not bring results: the refrigerator is either silent, or buzzes incessantly, or the wrong temperature is maintained in the chambers. In this case, the problem lies not in the settings, but in a technical malfunction. The first suspect is often the thermostat itself, which could “stick” or lose the seal of the capillary tube.
Another common reason is a refrigerant (freon) leak. If there is not enough gas in the system, the compressor will work constantly, trying to increase the temperature, but the cold will not be achieved. Visually, this may be accompanied by heating of the side walls or, conversely, by their complete coldness. It is also worth checking the evaporator for uniform defrosting.
⚠️ Attention: If you hear the thermostat clicking, but the compressor does not start, or, conversely, the motor runs continuously for more than 24 hours without shutting off, this is a reason to stop experimenting with the settings and contact service. Further operation may lead to failure of the compressor, the replacement of which is often not economically feasible.
Do not forget about the defrosting system in No Frost models. If the drainage hole is clogged or the defrost heating element fails, the evaporator becomes covered with ice, blocking the cold air supply channels. In this case, adjusting the temperature is useless - mechanical cleaning and repair of the defrosting system is required.
Frequently asked questions (FAQ)
Why in Is ice freezing on the back wall in the Atlant refrigerator?
The formation of a “fur coat” or ice crust on the back wall of the refrigerator compartment most often indicates a violation of the temperature regime. This happens if the thermostat is set to maximum, or if the door does not close tightly, allowing warm, moist air to pass through. The cause may also be a clogged drainage hole through which moisture should drain. Try to defrost the unit, clean the drainage and set the regulator to the average value.
How to understand that the thermostat in the Atlant refrigerator is faulty?
The main symptom of a thermostat malfunction is incorrect operation of the compressor. If the refrigerator does not turn on at all (even if the socket and light bulb are working) or works without interruption, not turning off even when low temperatures are reached, most likely the sensor is “lying.” In mechanical models, you can try knocking on the regulator handle, sometimes this helps to unlock the contacts, but this is a temporary measure.
Is it possible to regulate the temperature in the freezer separately from the refrigerator compartment?
In two-chamber refrigerators Atlant with one compressor and mechanical control, the adjustment is usually general: change The position of the handle affects the temperature in both chambers simultaneously, although in different proportions. In models with electronic control and two compressors (or a complete No Frost system with separate circuits), independent temperature settings for each compartment are often available through a panel on the door.
What does a flashing indicator on the control panel mean?
A flashing temperature indicator or snowflakes usually indicates that the chambers are temperature is higher than the established norm. This happens immediately after turning on the refrigerator, after prolonged defrosting or loading a large amount of warm food. If the blinking does not stop after several hours of operation, this may indicate a sensor malfunction or a freon leak.