The situation when products in refrigeration chamber start melt, and the milk quickly sours, is familiar to many owners of household appliances. Most often this happens due to incorrectly set thermoregulation parameters or the placement of the unit. Owners of Belarusian equipment Atlant often face the need to manually adjust operating modes, since automation does not always have time to respond to sudden changes in the external environment.
To effectively solve the problem, it is not enough to simply turn the regulator knob. It is necessary to understand the operating principle of your model, be it a classic mechanical thermostat or a modern electronic control panel. Incorrect operation may result in frozen evaporator or excessive load on the compressor. In this article, we will analyze in detail the setting algorithms for various series of refrigerators so that you can independently restore the optimal temperature regime.
It is important to consider that lowering the temperature is a process that takes time to stabilize. Sharp changes in thermometer readings inside chambers can be caused not only by settings, but also by technical factors. Therefore, before starting the adjustment, it is worth carrying out an initial diagnosis of the condition of the unit and making sure that there are no external factors influencing heat exchange. Features of thermoregulation in Atlant models. Refrigerators are divided into two main groups according to the type of control: mechanical and electronic. In models s heat exchange.
Features of thermoregulation in Atlant models
Refrigerators Atlant are divided into two main groups according to the type of control: mechanical and electronic. In models with mechanical control (KShD, KXM series), a rotary switch located inside the camera or on the body is responsible for the settings. The scale of such regulators is usually graduated from 1 to 7 (or from Min to Max), where number 1 corresponds to the highest temperature, and 7 to the lowest.
⚠️ Attention: Never set the mechanical thermostat immediately to the maximum value (7 or Max). This can lead to continuous operation of the compressor without shutting down, which will cause freezing of the rear wall and rapid wear of the engine.
Electronic models, such as the series XM-4425 or XM-6025, are equipped with a digital display and touch buttons. Here you can set the exact temperature in degrees Celsius. Electronic control unit independently controls the operating time of the compressor and defrost, but it also requires periodic checking of the settings, especially after power surges in the network.
The difference between models with one and two compressors also plays a role. In two-compressor units, the temperature in the refrigeration and freezer compartments is adjusted independently. If you have a single-compressor refrigerator with a system No Frost or a crying evaporator, then lowering the temperature in the freezer automatically affects the main compartment, which must be taken into account when balancing modes.
Setting a mechanical thermostat
If your refrigerator is equipped with a rotary knob inside the chamber, The setup process seems simple, but has its own nuances. To lower temperature, you need to turn the knob towards large numbers. However, you should not do this abruptly. The optimal position for constant operation under normal conditions is considered to be a range between 3 and 4.
When the knob is set to 5, 6 or 7, the refrigerator goes into intensive cooling mode. This is only permissible for a short time, for example, when loading a large amount of warm food. In this mode thermostat it may not open the compressor power circuit if the temperature in the chamber does not reach a critically low threshold, which will lead to the formation of a “fur coat” on the back wall.
After turning the regulator, you must wait several hours. The thermostat does not operate instantly, but as the sensitive element cools down. If after 5-6 hours the temperature has not dropped to the desired level, you can carefully move the knob another notch towards increasing the power, but no more.
Temperature adjustment in electronic models
Owners of modern models Atlant with a display on the front panel of the case have access to more precise settings. Changing settings usually involves pressing a button with a thermometer or camera icon. The current value will begin to flash on the screen, which can be changed using the arrow buttons or the “+” and “-” symbols.
The standard recommended temperature for the refrigerator compartment is +4°C...+5°C. If you need to cool food faster, you can temporarily set it to +2°C. However, remember that electronic module will tend to maintain this temperature constantly, which will increase energy consumption. After achieving the result, return the settings to the standard values.
In some models, for example Atlant XM 4008 or XM 4210, the function of separately setting modes is available. You can lower the temperature in the freezer compartment only by activating the Super Freeze mode, while the main compartment continues to operate as normal. This is convenient when you need to freeze berries, but do not need to supercool drinks.
☑️ Checking the settings of the electronic unit
Using the Super Freeze mode
Mode Super Freeze (Super Freeze) is a powerful tool for quickly reducing the temperature in the freezer compartment. When activated, the compressor runs without interruption, ignoring thermostat stop signals. In refrigerators Atlant this mode is often indicated by a button with a picture of a snowflake or the letter “F”.
This function should be used with caution. In mechanical models, turning on superfreeze often means forcing the defrost heater on or, conversely, completely blocking the defrost, which depends on the specific design. In electronic models, the timer will automatically turn off the mode after a certain time (usually from 12 to 72 hours), but in older models it must be turned off manually.
If you forget to turn off the super freeze in a refrigerator without an automatic timer, this will lead to serious consequences. Excessive cold will spread into the refrigerator compartment, the food there will freeze, and the compressor may burn out from overheating due to continuous operation. Always check the indicators on the control panel.
⚠️ Attention: Prolonged operation in super freeze mode (more than 3 days) unnecessarily can lead to failure of the defrost system and depressurization of the circuit due to excessive refrigerant pressure.
Factors affecting efficiency cooling
Even with the correct settings, the refrigerator may not cope with the task if its operating conditions are violated. One of the main enemies of effective heat exchange is contaminated condenser (grid at the back or bottom of the refrigerator). A layer of dust just 1 mm thick can reduce cooling efficiency by 20-30%.
The loading density of the chambers also matters. A refrigerator Atlant, like any other, needs air circulation. If the shelves are filled with products right up to the back wall, cold air cannot wash over the evaporator and be distributed throughout the volume. There should be a gap of at least 2-3 cm between the products and the walls.
Room temperature plays a critical role. Most models are designed to operate in climate class SN-N (from +10°C to +32°C). If the refrigerator is standing on an uninsulated loggia in winter or next to a radiator in summer, the standard thermostat settings may not be enough to maintain a low temperature inside the chambers.
Why does the refrigerator hum more when the temperature drops?
When the temperature is set to low, the compressor works longer and more intensely. If you hear a strong hum, check to see if the cabinet is vibrating against the wall or furniture. Also, the source of noise may be the refrigerant bubbling in the tubes during active operation of the system.
Diagnostics of faults at low temperatures
If you have turned the thermostat knob to the maximum or set the minimum degrees on the display, but the temperature does not drop, there may be a technical malfunction. A common problem in refrigerators Atlant is leakage refrigerant (freon). In this case, the compressor works continuously, but does not produce cold, and the condenser (grid at the back) remains only partially cold or warm.
Another common reason is a malfunction of the thermostat itself. If its sensitive element has lost its seal or the contacts are “stuck,” it may not send a signal to turn on the compressor, even when the chamber is warm. In electronic models, the temperature sensor (thermistor) may fail, which transmits incorrect data to the control module. Freezing of the defrost channel in No Frost models is another factor that prevents normal cooling. The ice blockage blocks the circulation of cold air from the freezer to the refrigerator compartment. Visually, this manifests itself in the form of a swollen rear wall in the refrigerator compartment or a lack of cold when the compressor is running. control module.
Freezing of the defrost channel in No Frost models is another factor that prevents normal cooling. The ice blockage blocks the circulation of cold air from the freezer to the refrigerator compartment. Visually, this manifests itself in the form of a swollen rear wall in the refrigerator compartment or a lack of cold when the compressor is running.
| Symptom | Probable cause | Action |
|---|---|---|
| The compressor does not turn on | The thermostat or start relay is faulty | Replacing the thermostat/relay |
| Works constantly, but does not freeze | Freon leak or clogged capillary | Call a technician, refilling |
| Ice in the refrigerator compartment | The defrosting system is faulty | Checking the heating element and timer |
| Temperature fluctuates | Bad seal doors | Replacing the seal |
Frequently asked questions and answers (FAQ)
Why after decreases the temperature in the Atlant refrigerator, does a lot of ice freeze?
The formation of an ice crust (“coat”) often indicates that the thermostat is set to too low a value (6-7), and the compressor does not have time to turn off. Also, the reason may be a loose fit of the door or a clogged drainage hole, due to which the moisture does not leave and freezes.
What value of the thermostat is optimal for the summer?
In the summer, when the ambient temperature is high, it is recommended to set the mechanical type regulator to a value of 2-3, and in electronic models - +5°C...+6°C. This will compensate for the increased heat flow from outside and prevent overloading of the compressor.
Is it possible to reduce the temperature in the refrigerator compartment separately from the freezer in a single-compressor Atlanta?
In classic single-compressor models with one cooling chamber (where the cold comes from the freezer), the temperature cannot be independently adjusted. By changing the setting, you change the operating mode of the compressor, which affects both compartments, although to varying degrees of proportion.
What to do if the electronics resets the temperature settings?
If the settings are reset after each power outage, the battery in the control module (if provided for by the design) may have run out or there has been a failure in the board's memory. Try to completely turn off the power to the refrigerator for 15 minutes, and then set the settings again.
Do you need to defrost the Atlant refrigerator before changing the settings?
There is no need to specially defrost the unit just to change the position of the thermostat knob. However, if you suspect that the system is clogged with ice due to previous incorrect settings, completely defrosting for 10-12 hours will help restore normal air circulation.