A modern refrigerator Atlant is a complex device designed to save freshness of products for a long time, however, the correct operation of the unit directly depends on the correctness of the thermostat settings. Many owners do not even suspect that improper operation of the compressor can lead to rapid deterioration of supplies or, conversely, to excessive energy consumption. Temperature regulation is a basic skill necessary for the operation of any climate control equipment, and in the models of the Belarusian manufacturer this process has its own characteristics.
In this article we will analyze in detail the mechanics of the operation of thermostats used in various series of refrigerators Atlantand explain how to achieve the ideal balance between cooling and energy efficiency. You will learn why the numbers on the handle do not mean degrees Celsius, how the ambient temperature affects the operation of the device, and when to sound the alarm. Understanding these principles will extend the life of your equipment.
Before taking active steps, it is necessary to determine the type of control of your device, since the approaches to setting up mechanical and electronic systems are radically different. Errors at this stage can lead to incorrect operation of the unit, so carefully study the control panel before making any changes to the settings.
Types of temperature control in Atlant refrigerators
All refrigerators of the brand Atlant can be divided into two large groups according to the type of temperature control: mechanical and electronic. Mechanical control is found in classic models and two-chamber refrigerators without a function No Frost or with a simplified heat removal system. In such devices, adjustment is carried out using a rotary control located inside the refrigerator compartment or on the front panel.
Electronic control is typical for more modern and expensive models equipped with a display. Here the user can set the exact temperature in degrees Celsius for each chamber separately. The system itself controls the operation of the compressor and fans, maintaining the set parameters with high accuracy. This eliminates the human factor and the need for constant checks with a thermometer.
It is important to understand that in mechanical systems you do not set degrees, but choose the cooling intensity. The numbers on a scale from 1 to 7 (or from Min to Max) indicate the degree of tension of the thermostat spring, and not a specific temperature. The higher the number, the lower the temperature inside the chamber will be. In electronic models, the situation is simpler: you see the real value that the system will maintain.
⚠️ Attention: In Atlant mechanical refrigerators, turning the handle counterclockwise all the way often means completely turning off the refrigerator compartment compressor, but not the freezer. Be careful not to accidentally defrost food.
You can determine the type of your device by the presence of a digital display on the outer door. If it is not there, and there is a plastic handle with numbers hanging inside the camera, then you have a mechanical control system. It is this that requires the most careful attention and periodic manual adjustment depending on the season.
Deciphering the scale of a mechanical thermostat
It is mechanical regulators that cause the greatest difficulties for users, since the markings on them are quite abstract. The scale is usually graduated with numbers from 1 to 7, sometimes there are designations Min and Max. Users often mistakenly believe that the number 5 means +5 degrees, which is a fundamental misconception. In fact, number 1 corresponds to minimum cooling (temperature closer to 0 or even above zero), and number 7 to maximum compressor power (temperature can drop below -18...-20 degrees in the refrigerator compartment, which will lead to freezing of vegetables).
The optimal position of the handle for year-round operation is considered to be 3 or 4. This position provides a balance in which food does not freeze at the rear wall and the compressor does not work non-stop. When setting the regulator to minimum (1), the compressor may not turn on at all if the room temperature is high, which will lead to spoilage of food.
If you set the regulator to maximum (6-7), the thermostat will demand unattainable or excessive cold from the compressor, forcing it to work without stopping. This is a direct path to engine overheating and failure. In this case, soups, milk and vegetables that have lost their taste may freeze in the refrigerator compartment.
There is also an intermediate position, often indicated by a dot or a word OFF. Turning the regulator to this position completely stops the operation of the refrigeration unit. This is useful when the owners are absent for a long time or when defrosting is necessary. However, remember that in two-chamber models with one compressor, the freezer will also stop freezing.
Setting up the electronic control panel
Owners of models Atlant with electronic control are in a more advantageous position, since they have full control over the microclimate inside the chambers. The control panel is usually located on the top of the door or cut into it. Here you can independently adjust the temperature in the refrigerator and freezer compartments, which is especially important for models with the system No Frost.
To change the parameters you need to press the button Regulation or the button with the image of a thermometer. The selected camera's indicator will light up on the display. Use the arrow buttons + and - to set the desired value. The standard recommendation for the refrigerator compartment is +3...+4 degrees Celsius. For the freezer, the optimal value is -18 degrees.
Some advanced models are equipped with a Super Freeze or “Super Freeze” mode. When this function is activated, the compressor operates continuously, freezing products as quickly as possible. Important: Do not keep this mode turned on constantly, use it only when loading fresh products, otherwise it will lead to excessive energy consumption and freezing of the evaporator.
| Operating mode | Refrigerator compartment temperature | Freezer temperature | Recommendation for use |
|---|---|---|---|
| Standard | +3...+4 °C | -18 °C | Daily operation |
| Eco / Economy | +5...+6 °C | -15...-16 °C | Small quantity of products |
| Intensive | +2 °C | -20...-24 °C | Preparing food for the winter |
| Vacation | +10...+15 °C | Working | Long absence |
Electronics also allows you to activate the “Vacation” mode. In this case, the temperature in the refrigerator compartment rises to +10...+15 degrees to prevent the appearance of mold and odor when the door is closed, and the freezer continues to operate as normal. This is an ideal solution for business trips and travel.
The influence of seasonality on the operation of the refrigerator
The refrigerator Atlant, like any other, is a heat pump, and its efficiency directly depends on the difference in temperature inside and outside the case. In winter and summer, operating conditions change dramatically, which requires a revision of the thermostat settings, especially in mechanical models.
In the summer, when the room temperature can reach +25...+30 degrees, heat flow through the walls of the refrigerator increases. The compressor has to work harder to maintain the desired cold. At this time, it is not recommended to turn the thermostat knob to maximum. It is enough to leave it in position 3 or 4. If you unscrew it to 6-7, the compressor may not be able to withstand the load and will burn out, since it is not designed to operate 24/7 with maximum efficiency.
In winter, the situation changes. If the refrigerator is in an unheated room or in a kitchen with an open window, the ambient temperature drops. For mechanical thermostats, this can become a problem: at low room temperatures, the freon pressure in the system drops, and the compressor may simply not start if the regulator is set to minimum. In such cases, it is recommended to switch the knob to average or even slightly above average values (4-5) to ensure a stable start of the motor.
⚠️ Attention: Operating the refrigerator at an ambient temperature below +10 degrees (for single-compressor models) can lead to incorrect operation of the thermostat and defrosting of the freezer compartment, even if the compressor is humming.
Modern models with electronics and two compressors are less sensitive to seasonal fluctuations, but they are not recommended to be installed close to heating radiators or in direct sunlight. This creates an artificial “summer” mode even in winter, forcing the equipment to work harder.
Why can a refrigerator freeze more in winter?
In winter, the difference between the temperature in the room and inside the refrigerator is smaller, so the compressor reaches the desired parameters faster and rests longer. However, if the room is too cold, the oil in the compressor thickens, making it difficult to start.
Thermostat and Sensor Locations
Understanding where the controls and temperature controls are physically located helps diagnose problems more quickly. In refrigerators Atlant with mechanical control, the thermostat is most often located inside the refrigerator compartment. This can be a plastic handle at the end, on the ceiling of the chamber or in the corner.
The sensitive element of the thermostat - a capillary tube - is fixed to the evaporator or pressed against the back wall of the chamber. It is she who reads the temperature and gives the command to turn the compressor on or off. If you notice that the knob turns too easily, without characteristic clicks, the capillary may have broken or the regulator mechanism itself has broken down.
In models with the system No Frost temperature sensors (thermistors) are often hidden inside plastic panels or located in air ducts. They transmit data to the electronic control module. Failure of such a sensor leads to the fact that the refrigerator ceases to “understand” what the current temperature is, and may either not turn on or work without stopping.
- 🔍 Top location: typical of older Atlant models, the handle is often combined with the lampshade.
- ❄️ Side location: found in modern on two-chamber models, the handle is located in a niche of the side wall.
- 💡 Hidden sensors: in electronic models, sensors may not be accessible for visual inspection without disassembly.
When cleaning inside the refrigerator, try not touch the capillary tube of the mechanical thermostat with sharp objects or the edges of shelves. Its damage leads to freon leakage from the control circuit and complete failure of the automation system.
Typical problems and methods for eliminating them
Even a properly configured refrigerator can sometimes behave incorrectly. Most often this is not due to breakdown, but to external factors or improper operation. For example, if the food at the back wall of the refrigerator compartment turns into ice, and the regulator is set to minimum, this may indicate a clogged drainage hole or a loose door fit.
If the compressor runs almost non-stop, and the temperature inside does not drop to the desired values, check the tightness of the doors and the condition of the sealing rubber. Also, the reason may be a large load of warm food or installation of a refrigerator next to (stove, radiator). In such cases, adjusting the thermostat will not help - you need to eliminate the cause of the heat influx.
☑️ Diagnosis of temperature problems
The opposite situation also happens: the refrigerator is “silent”, food begins to deteriorate, but it’s warm inside. If you do not hear a characteristic click when turning the thermostat knob and the compressor does not start, the thermostat itself or the start relay may have failed. In models with electronics, an error code may light up on the display, which is explained in the instructions.
⚠️ Attention: If you smell burning or see sparking in the area of the thermostat, immediately unplug the refrigerator. Further operation is dangerous by fire.
A frequent mistake is an attempt to “intensify” the cold by sealing the sensors or forcibly closing the contacts. This is strictly forbidden. This disrupts the operating algorithm of the compressor and can lead to water hammer in the refrigerant circulation system, which will disable the expensive unit.
What to do if the thermostat clicks but does not turn on?
Frequent clicks without starting the compressor indicate a problem with the start relay or the motor itself. The thermostat is working (it gives a command), but the actuator does not work. A call from a specialist is required.
Frequently asked questions (FAQ)
Why does the “fur coat” on the back wall freeze in the Atlant refrigerator?
This is a normal process for a drip defrosting system. The water flows down the back wall, freezes, and then when the compressor turns off, the melt water goes down the drain. If the layer of ice is too large, check if the drainage hole is clogged and make sure that you do not set the regulator to the maximum value (6-7).
What temperature should you set in the freezer for long-term storage of meat?
For long-term storage of meat and poultry, a temperature of -18 degrees or lower is recommended. In mechanical refrigerators, this usually corresponds to the position of the control knob at 5 or 6, but it is better to control the process with a regular outdoor thermometer placed between the products.
Is it possible to operate the Atlant refrigerator in an unheated country house in winter?
The manufacturer does not recommend operating most household models at temperatures below +10 degrees. The oil in the compressor thickens, which leads to breakdown when starting, and the thermostat may not control the cycles correctly. If this is necessary, use only the freezer compartment (if the model allows) or special low-temperature modifications.
What does the flashing Alarm indicator on the control panel mean?
The indicator Alarm lights up or begins to blink when the temperature in the chamber rises above a safe one (usually above +8...+10 degrees). This is a signal that the door has been open for a long time, warm food has been loaded, or there has been a malfunction in the cooling system. After the temperature decreases, the indicator will go out.
How to defrost a refrigerator with mechanical control correctly?
To defrost, turn the thermostat knob to position 0 or OFF. This will turn off the compressor. Leave the doors open until the ice is completely thawed. Do not use a hair dryer or hot water to speed up the process, this can damage the plastic and seals.