Refrigerators Atlant are deservedly popular due to their reliability and simplicity of design, but many owners encounter difficulties during the initial setup operating mode. Adjusting the temperature using a mechanical knob, or thermostat, seems like an intuitive process, but there are important nuances here, ignoring which can lead to food spoilage or excessive energy consumption.
Unlike modern electronically controlled models, where you set exact degrees on the display, in mechanical systems you work with conventional units cooling intensity. Understanding how exactly thermostat reacts to turning the handle is the key to proper operation of the equipment. Incorrect settings often cause the formation of a snow coat or, conversely, insufficient freezing.
In this article we will analyze in detail the principle of operation of the mechanical regulator, decipher the scale values and give practical recommendations for setting the optimal mode for your refrigerator Atlant.
The principle of operation of a mechanical thermostat
The basis of the temperature control system in most models Atlant is a mechanical thermostat. Inside this device there is a sensitive element - a bellows filled with refrigerant, which reacts to changes in temperature in the evaporator. When you turn the knob, you physically change the tension of the spring, setting the contact threshold.
When the set temperature is reached, the contacts open and the compressor stops. As the temperature inside the chamber rises, the refrigerant in the bellows expands, closing the contacts, and the cooling cycle repeats. It is important to understand that the knob does not add “cold” directly, it only changes the range in which the compressor operates compressor.
⚠️ Attention: A mechanical thermostat is not an accurate measurement device. It maintains the temperature within a certain range, and small fluctuations (1-2 degrees) are normal for this design.
Some users mistakenly believe that turning the knob towards the maximum values will instantly cool the food. In fact, this only causes the compressor to work longer without interruption, which can lead to its overload.
How does a thermostat bellows work?
Inside the thermostat there is a sealed tube (bellows) filled with gas or liquid. When cooled, the pressure inside drops and the bellows contracts, opening the contacts. When heated, the pressure increases, the bellows expands and closes the circuit, starting the motor.
Interpretation of the Atlant thermostat scale
On the control panel of refrigerators Atlant there is usually a knob with a digital scale from 1 to 7 (sometimes from 0 to 7 or 1 to 5). Many users mistake these numbers for degrees Celsius, which is a gross misconception. The numbers indicate the level of cooling power: the higher the number, the lower the temperature inside the chamber.
The value “0” on the scale means that the thermostat contacts are forced open, and the refrigerator will not cool, even if it is connected to the network. This is a mode that is sometimes used for defrosting or when the equipment is not used for a long time. Values from 1 to 7 are a gradation of work intensity.
- 🔹 Division 1-2: Minimum cooling. The temperature in the main chamber will remain around +8...+10°C. Suitable for storing drinks or vegetables that do not require extreme cold.
- 🔹 Division 3-4: Optimal mode. The standard temperature for storing most products is +3...+5°C. This position is recommended by the manufacturer for long-term operation.
- 🔹 Division 5-7: Maximum cooling. Temperatures can drop to 0°C or below. It is used for quick freezing or with a large load of products, but requires control.
If you set the knob to maximum (6 or 7), the compressor can work almost non-stop, trying to reach a temperature that is unattainable for this model. This is a direct path to the formation of an ice crust on the rear wall and premature wear of the motor.
Optimal settings for different seasons
The external ambient temperature directly affects the efficiency of the refrigerator. In summer, when the room is hot, heat exchange is disrupted and the refrigerator takes longer to cool down. In winter, the situation is the opposite: in an unheated room or near a radiator, equipment operates in extreme conditions.
In summer, if the room temperature exceeds +25°C, it makes sense to shift the regulator one notch towards stronger cooling (for example, from 3 to 4). This compensates for the heating of the walls from the hot air in the room. However, do not forget that the door should be opened less often at this time.
In winter, especially if the refrigerator is located near heating devices, the load on the system also increases. But if the equipment is located in a cold room (for example, in a country house or in a corridor), a standard thermostat may simply not turn on the compressor, since it will “seem” to it that it is already cold.
There is a widespread belief that in winter you need to turn off the refrigerator or set it to minimum. This is not always true. Climate class your model determines the permissible range of ambient temperatures. If the room is colder than +10°C, the oil in the compressor may thicken, which will lead to breakdown at start-up.
Table of correspondence of divisions and temperature conditions
For ease of setup, we provide an indicative table linking the position of the thermostat knob with the expected temperature in the refrigerator camera, subject to normal loading and serviceable equipment.
| Handle position | Operating mode | Expected t° (main chamber) | Expected t° (freezer) |
|---|---|---|---|
| 1 (Min). (Max) | Economical | +7...+9°C | -6...-8°C |
| 3 (Medium) | Normal | +3...+5°C | -12...-14°C |
| 5 (High) | Intensive | +1...+2°C | -18...-20°C |
| 7 (Max) | Frozen | 0...+1°C | below -24°C |
Please note that these values are averages. The actual temperature depends on the amount of food, the frequency of door openings and the technical condition of the seals. For precise control, it is recommended to use a separate thermometer placed in a glass of water on the middle shelf.
⚠️ Attention: Long-term operation at mode 6-7 (maximum) is not intended for continuous use. This is the “Super Freeze” mode, which should be turned on for 2-3 hours, and then return the handle to the middle position.
Step-by-step instructions for setting the temperature
If you notice that the food in the refrigerator Atlant begins to freeze or, conversely, quickly deteriorate, you need to adjust the settings. This process is simple, but it requires consistency and patience, since changing the regime does not happen instantly.
First, assess the current situation. If ice has formed on the back wall of the main chamber, and the food at the back wall is frozen, the temperature is too low. If the milk has turned sour within 24 hours and the meat has a sticky surface, cold is not enough. Based on this, make a decision on the direction of rotation of the knob.
☑️ Setting algorithm
Turn the handle smoothly, without jerking. Sudden movement can damage the internal mechanics of the thermostat. After changing the position of the regulator, be sure to wait several hours (ideally a day) for the temperature to stabilize. Only after this can you draw conclusions about the effectiveness of the settings.
Check the tightness of the door. If the seal is worn out or the door is skewed, the cold will escape, and no adjustment with a knob will help - the compressor will thresh without interruption, trying to compensate for the heat influx.
Typical problems and methods for solving them
Even correctly set temperature adjustment may not give a result if there are malfunctions in the system. Often users turn the knob all the way, not understanding why the refrigerator does not freeze. In such cases, the problem lies deeper than a simple setup.
One of the common problems is freon leakage. If there is little refrigerant in the system, the compressor will work constantly, but there will be no cold at either minimum or maximum. In this case, adjusting the thermostat is pointless - you need to call a technician to find a leak and refill it.
- ❄️ Increasing “fur coat”: If ice freezes only on the back wall, the defrost sensor may be faulty (in No Frost models) or the thermostat is stuck in the “on” position.
- 🔊 Frequent on/off: If the motor hums for 2 minutes and stops for 5 minutes, most likely the seal of the chamber is broken or the thermostat has lost sensitivity.
- 🌡️ Different temperatures on the shelves: This is normal for a static cooling system. It is always warmer on the top shelf than on the bottom. Do not store perishable foods against the front wall or on the door.
It is also worth mentioning the problem of sticking contacts of the thermostat itself. Over time, sparking leads to the formation of carbon deposits, and the contacts stop opening. In this case, the refrigerator will freeze until you forcibly unplug it from the outlet, regardless of the position of the knob.
What to do if the knob turns freely?
If the knob scrolls 360 degrees and does not have fixed positions (clicks), this is a sign of a breakdown of the internal mechanism. Most likely the rod or internal spring has broken. In this case, adjustment is impossible - the thermostat must be replaced with a new one. Operating a refrigerator in this state is dangerous, since it may not turn off and burn out.
Is it possible to replace a mechanical thermostat with an electronic one?
Theoretically this is possible, but in practice it requires a deep redesign of the design: installing sensors, a controller, a display and changing the wiring. For refrigerators Atlant this is not economically feasible. It is cheaper and more reliable to buy an original mechanical thermostat that matches your model.
Why does the temperature not recover for a long time after defrosting?
After complete defrosting, a lot of moisture and warm air remain inside the chamber. The compressor takes time (from 2 to 6 hours) to freeze this volume. During this period, you should not completely load the refrigerator with food - let it go to idle mode or with a minimum load.
Does the amount of food affect the operation of the spinner?
Yes, it does significantly. An empty refrigerator cools down faster, but also heats up faster when the door is opened. A fully loaded refrigerator (especially with foods with high heat capacity, such as meat or water) holds the cold better, but requires more time and energy for initial cooling. When fully loaded, it makes sense to temporarily increase the power.