Refrigerators Atlant are deservedly considered one of the most reliable units in the post-Soviet space, however, even time-tested equipment may require user intervention. The situation when food begins to freeze and the ice crust on the back wall becomes too thick signals the need to increase the temperature. This is especially true in winter or when the chambers are not fully loaded.
Many owners are faced with the fact that standard factory settings are too aggressive for the current operating mode. Correct adjustment will not only preserve the freshness of vegetables and fruits, but will also extend the life of the compressor, preventing it from operating in constant overload mode. In this article we will look at mechanical and electronic methods of adjustment.
Before taking active steps, you need to accurately determine the type of control of your device. Models can be equipped with both a classic mechanical regulator and a modern electronic panel. The algorithm of your actions and the risk of making a mistake during calibration directly depend on this.
Diagnostics of the current temperature regime
The first step to solving the problem will be an objective assessment of the situation. Often, users feel that the refrigerator is too cold, although the actual temperature is within normal limits. For accurate diagnosis, it is recommended to use an external thermometer placed in a glass of water on the middle shelf.
Optimal indicators for the main chamber should range from +2 to +4 degrees Celsius. If the thermometer shows values below zero or close to them, you must immediately intervene. cooling systems. Ignoring this fact will lead to food spoilage and the formation of excessive amounts of ice.
⚠️ Attention: Do not try to adjust the temperature immediately after loading a large amount of warm food. Give the refrigerator time (about 5-6 hours) to stabilize the cycle, otherwise the readings will be incorrect.
It is also worth paying attention to the location of the products. If vegetables are placed close to the back wall, they may freeze even with normal settings. This is due to the peculiarities of air circulation, especially in models with a system. No Frost.
Visual inspection also plays an important role. The presence of a “snow coat” on the back wall or packages frozen to the shelves is a clear sign that aggregate state the refrigerant or the operation of the thermostat requires correction. In such cases, increasing the temperature is a necessary measure.
Adjusting the mechanical thermostat
In most classic models Atlant control is carried out using a mechanical handle located inside the chamber or on the top panel of the case. This unit is called a thermostat or thermostat. The principle of its operation is based on the expansion and compression of a sensitive liquid or gas inside a bellows.
To make the refrigerator warmer, you need to turn the control knob towards lower numbers. If the scale has divisions from 1 to 7, where 7 is the maximum cold, then to increase the temperature you should switch the lever to value 2 or 3. Mechanical system does not respond to changes instantly.
After changing the position of the handle, you must wait a certain time. The stabilization cycle can take from 2 to 5 hours. Only after this does it make sense to carry out repeated measurements. Rushing in this matter can lead to imbalance of the regime and spoilage of products.
It is important to understand that a mechanical thermostat tends to “get tired”. Over time, the spring inside the device may weaken and actual temperatures will no longer correspond to the knob positions. In such cases, it may be necessary calibration or replacement of the unit.
How does a mechanical thermostat work?
Inside the device there is a bellows filled with freon or a special liquid. When cooling, the pressure drops, the contacts open and the compressor turns off. When heating, it’s the other way around.
If turning the knob towards the minimum values does not produce results, and the cold continues to “press”, the contacts may be stuck or the seal of the bellows may be broken. In this case, simple adjustment will not help, you will need refrigeration equipment repair.
Setting up the electronic control panel
Modern models Atlant are often equipped with an electronic control unit with a digital display. Here the setting process is more precise, but requires care. Digital sensors respond faster than mechanical sensors, but they are more sensitive to power surges in the network.
To change parameters, a button with the image of a thermometer or a snowflake is usually used. By clicking on it, you switch modes or change numerical values. To increase the temperature, you need to lower the number displayed on the screen. The standard factory mode is often set to +3...+4°C.
In some advanced models, the “Holiday” or “Eco” function is available. Activating this mode automatically raises the temperature in the refrigerator compartment to +10...+15 degrees, which saves energy, but is not suitable for storing perishable foods. Be careful when choosing operating mode.
| Display indicator | Actual temperature | Recommended action |
|---|---|---|
| +1...+2 °C | Very cold | Increase to +4 °C |
| +3...+4 °C | Optimal | No change |
| +5...+7 °C | Warmth | Reduce to +3 °C |
| Above +8 °C | Critical | Check for leaks |
Electronics allows you to set exact values, but sometimes failures occur in the control board firmware. If the settings go wrong on their own or the display shows an error (for example, flashing numbers), you need to perform reboot the systemdisconnecting the device from the network for 10-15 minutes.
☑️ Setting up electronic control
Do not forget that in two-compressor models, the refrigeration and freezer compartments are adjusted independently. By increasing the temperature in one compartment, you do not affect the operation of another, which is a big advantage double-circuit system.
Specific settings of the No Frost system
Refrigerators Atlant with system No Frost (or “Full No Frost”) have their own characteristics. Here, cold air circulates forcibly with the help of fans, evenly distributed throughout the volume. Because of this, products may seem colder than they actually are due to constant airflow.
In such models, a “wind” effect is often observed. If you feel a strong current of air blowing on the food, this can cause local freezing even at normal average temperatures. The solution lies in the correct loading of the shelves.
Do not place products close to the air duct opening on the back wall. Leave a gap of 2-3 centimeters. This will allow air flows to circulate freely, without creating local zones extreme cold.
Also in No Frost models, the condition of the defrost system is important. If the defrost heating element or defrost sensor does not work correctly, the evaporator may become covered with ice, which disrupts heat exchange. As a result, the fan drives very cold air, and the temperature in the chamber drops below normal.
⚠️ Attention: In No Frost refrigerators, you cannot completely block the ventilation holes with food. This will lead to fan failure and temperature disturbance throughout the entire volume.
To increase the temperature in the No Frost system, it is often enough to simply change the arrangement of products, freeing up the active zones air exchange. In such cases, mechanical adjustment of the thermostat is required less often.
The influence of external factors on temperature
The temperature inside the refrigerator directly depends on environmental conditions. If the unit is located near the battery, in direct sunlight or in a niche without ventilation, it is heat exchange damaged. The compressor may wear out, trying to compensate for external heating, or, conversely, produce unstable cold.
In winter, the situation may be the opposite. If the refrigerator is placed on an uninsulated balcony or in a cold corridor where the temperature drops below +10°C, the thermostat may “think” that the room is already cold enough and does not turn on the compressor. However, if the temperature inside is too low, then the reason is often a lack of heat flow.
Frequent opening of the door also plays a role. If the room is hot and humid, a lot of warm air gets inside. The compressor begins to work harder to bring down the temperature, and can “overcool” the chamber if the thermostat does not have time to react. The tightness of the seal This is critical.
Check the rubber seals on the doors. If they do not fit tightly, warm air is constantly sucked in, forcing the cooling system to work in increased mode, which can lead to incorrect temperature readings and the formation of ice.
Typical malfunctions when adjustment is impossible
There are situations when turning the knob or changing the numbers on the display does not give any result. Temperatures remain extremely low. This is a sure sign of a technical malfunction. Most often, the thermostat itself fails: its contacts “stick” in the closed state, and the compressor does not receive a signal to stop.
Another possible reason is a refrigerant leak. Although more often the temperature increases when there is a leak, in some cases, a violation of the circulation of freon or blockage of the capillary system can lead to local overcooling of the evaporator, which then “gives” cold into the chamber.
A malfunction of the temperature sensor (in electronic models) also leads to the fact that the “brain” of the refrigerator receives false data that it is hot in the chamber and continues to freeze. Replacing NTC sensor usually solves the problem.
What is contact sticking?
This is a phenomenon when an electric arc, when opened, welds the thermostat contacts. As a result, the chain does not break, and the compressor hums continuously until it burns out or defrosts everything around.
If you suspect a breakdown, you should not continue operation in the hope of a miracle. Constant operation of the compressor without rest cycles will lead to its combustion, which is the most expensive type of refrigerator repair.
Replacing the thermostat yourself will require skills in working with electricians and tools. It is necessary to remove the old part, carefully remove the sensitive tube from the evaporator (without damaging it!) and install a new one with similar markings.
Is it possible to completely turn off the cold in the refrigerator compartment, leaving the freezer?
In most models Atlant with one compressor this is impossible, since this is impossible the cold is generated in the evaporator of the freezer compartment, and enters the refrigeration room according to the residual principle. However, in models with the “Vacation” function or in two-compressor refrigerators, you can turn off the upper chamber.
Why does it take a long time for the temperature to be restored after defrosting?
After defrosting, the walls of the chamber and the food are at room temperature. The compressor takes time (up to 24 hours in some cases) to freeze the entire volume. During this period, the temperature may fluctuate. Do not load the chamber with products until the mode stabilizes.
Is it normal that the back wall is covered with ice?
For a drip system (“Crying cry”), this is normal. While the compressor is operating, a “fur coat” grows on the wall, and when it stops, it melts and flows into the drain. If the ice does not melt and turns into a block, the thermostat is faulty or the drainage is clogged.
How often do you need to change the thermostat?
The service life of a mechanical thermostat is on average 5-7 years of active use. If you notice that the refrigerator begins to turn on/off frequently or stops turning off at all, most likely the part’s life is exhausted.
Does the amount of food affect the temperature?
Yes, an empty refrigerator works differently than a full one. The products work as a cold accumulator. If the refrigerator is almost empty, the temperature may fluctuate more. In this case, it is recommended to place bottles of water in the chamber to stabilize heat capacity volume.