Refrigerators of the Belarusian brand Atlant are deservedly popular due to their reliability and affordable price, however, even the highest quality equipment requires the correct operating mode for long service. Owners often wonder what temperature should be maintained in the freezer so that food remains fresh for as long as possible and the compressor does not work in overload mode. Understanding the physical processes of freezing and the technical features of your unit will help you avoid damage to inventory and costly repairs.
Standard indicators depend on the energy efficiency class, type of refrigerant and age of the model, be it an old one Atlant MHM 1704 or a modern series with NoFrost. The standard value for most household models is the range from -18 to -24 degrees Celsius, but the actual picture inside the camera may differ significantly from the numbers on the display or the position of the control knob. It is important to consider that the thermostat does not always display the exact temperature, but only regulates the cycles of turning the compressor on and off.
In this article we will analyze in detail why deviations from the norm may occur, how to correctly set the parameters for different types of products and what to do if the indicators show alarming values. You will learn to independently diagnose problems with cooling and understand when it is really necessary to call a specialist, and when simple adjustments are enough.
Optimal temperature conditions for different types of freezing
To ensure high-quality food preservation, it is important to understand the difference between short-term storage and deep freezing. The standard temperature in the main freezer compartment is usually set at -18 degrees. It is at this cold that the proliferation of most bacteria stops, and enzymatic processes in meat, fish and vegetables practically freeze.
If you plan to store supplies for a long time, for example, berries or large pieces of meat stored for the winter, it makes sense to lower the value to -20 or even -24 degrees. However, it is worth remembering that each additional negative division requires the compressor to work more intensively, which directly affects energy consumption. For models with mechanical control, such as Atlant 1700 or 1800 series, this is regulated by turning the thermostat knob.
⚠️ Attention: It is not recommended to constantly keep the freezer in super-freezing mode (usually indicated by the red button or the extreme position of the regulator), if there is no urgent need for this. Long-term operation in extreme mode can lead to premature wear of the compressor start relay.
There is a special classification of freezing modes, indicated by snowflakes on the front panel of the door. One snowflake means a temperature of about -6 degrees, which is only suitable for short-term storage of already frozen food for a week. Three or four snowflakes indicate the possibility of deep freezing to -18°C and below, which allows you to store supplies for up to a year without loss of taste.
Factors influencing the temperature inside the chamber
Many factors influence the actual temperature inside the freezer compartment, and thermometer readings may fluctuate depending on operating conditions. One of the main parameters is load density cameras. An empty freezer cools down faster, but also heats up instantly when the door is opened, while a fully loaded freezer stays cold longer, but takes longer to initially cool down.
The frequency of door opening also plays a critical role. Every time you open the chamber, warm, moist air enters and condenses on the walls and food, forming frost. In models with manual defrosting, such as Atlant MHM 2808, this leads to the formation of a “fur coat”, which acts as a heat insulator and interferes with the effective cooling of products.
- 🌡️ Thermal sensor location: in different models, sensors may be located in different zones, so the temperature at the back wall and at the door may differ by 3-5 degrees.
- 🚪 Seal tightness: if the rubber on the door is worn out or dirty, the cold will escape, and warm air will constantly be sucked in, forcing the compressor to work without stopping.
- ❄️ Presence of ice crust: a layer of ice more than 5 thick mm significantly reduces the heat exchange between the evaporator and the air in the chamber.
It is also worth considering the ambient temperature. If the refrigerator is located in an unheated country house or close to a hot stove, it will be extremely difficult for the cooling system to maintain the set parameters. In summer, the load on the unit is always higher than in winter.
How to properly set the thermostat in Atlant refrigerators
The temperature setting depends on the type of control of your model. In mechanical refrigerators that use a rotary knob, the scale is usually graduated from 1 to 7 (or from Min to Max). It is important to understand that the numbers do not mean degrees Celsius, but only indicate the cooling intensity: the higher the number, the colder.
For standard operation, it is recommended to set the thermostat knob to the middle position, usually this value 3 or 4. If you have just loaded a large batch of fresh food, you can temporarily switch the regulator to maximum cooling, but after 2-3 hours be sure to return it to normal mode to avoid freezing and unnecessary load on the engine.
☑️ Checking the thermostat setting
In models with electronic control, for example, series Atlant XM-4425, setting is done via a digital display. Here you set the exact value of the desired temperature. After changing the settings, the refrigerator needs time to stabilize the mode, usually it takes from 4 to 8 hours, during which it is not recommended to open the doors frequently.
⚠️ Attention: If, after setting the regulator to the minimum value (maximum cold), the temperature does not drop below -10 degrees, this may indicate a freon leak or a compressor malfunction, and not incorrect configuration.
Diagnosis of problems: table of deviations and causes
Understanding what is normal and what requires intervention will help you quickly respond to problems. Below is a table that will help classify the condition of your refrigerator Atlant according to external signs and temperature.
| Indicator / Symptom | Normal value | Possible cause deviations | User actions |
|---|---|---|---|
| Storage temperature | -18°C ... -24°C | Incorrect thermostat setting | Adjust knob or menu settings |
| Door temperature | Higher by 3-5°C | Frequent opening, loose closing | Check the seal, open less often |
| Temperature above -10°C | Critical for storage | Freon leak, compressor breakdown | Defreeze for 24 hours, if that doesn’t help, repair |
| Temperature below -30°C | Freezing | Thermostat stuck, sensor malfunction | Check the operation of the relay, call a technician |
If you notice that the food in the freezer is covered with a thick layer of ice or, conversely, has begun to thaw, first of all rule out the human factor. Check if anything is adjacent to the back wall, if the ventilation holes are clogged, and if the mode is set correctly.
Particular attention should be paid to models with the system NoFrost. In them, the temperature is distributed more evenly due to forced air circulation, but if the condensate drainage channels become clogged, the efficiency will drop sharply. In such cases, completely defrosting the refrigerator while it is turned off during the day often helps.
Why does ice freeze in the Atlant freezer?
A coat of ice is formed due to the moisture contained in the food and air. When the door is opened, moist air enters the chamber, settles on the cold walls and freezes. If the ice layer exceeds 5-10 mm, it begins to act as a heat insulator, preventing the evaporator from cooling the chamber. The compressor is forced to work longer, trying to break through the ice, which leads to excessive consumption of electricity and possible breakdown.
Why the temperature may not correspond to the norm
Situations when the refrigerator Atlant stops freezing properly can arise for various reasons, not always associated with the breakdown of expensive components. Often the problem lies in violation of operating rules or minor malfunctions that can be eliminated yourself.
One of the common reasons is Incorrect operation of the thermostat. If its contacts are oxidized or the mechanism is jammed, it may not give the command to turn on the compressor when the temperature rises or, conversely, not turn off the unit when the desired cold is reached. In mechanical models, this is solved by replacing the thermostat, which is a relatively inexpensive procedure.
- 🔌 Problems with power supply: Power surges can damage the start relay, causing the compressor to hum but not start, or to start for a short time.
- 💨 Clogged capillary tube: if a plug of oil or decomposition products forms in the refrigerant circulation system, freon stops flowing into the evaporator in the required volume.
- 🧊 Malfunction of the defrost system: in NoFrost models, failure of the defrost heating element or timer results to the fouling of the evaporator with ice, which blocks the flow of cold air.
It is also worth considering the age of the equipment. In old refrigerators that are more than 10-15 years old, natural wear and tear of the seals and loss of compressor performance are normal processes. In such cases, maintaining the ideal temperature of -24 degrees may not be possible without replacing the main components.
Recommendations for the operation and storage of products
In order for your Atlant to serve for a long time and provide ideal storage conditions, it is important to follow a few simple rules. Do not put hot or warm foods in the freezer - this causes a sharp jump in temperature and increases humidity, which leads to icing.
Try not to overfill the chamber. For effective air circulation (especially in NoFrost systems), it is necessary to leave small gaps between the bags. If you have a model with static cooling, on the contrary, dense packing helps to maintain cold during a short-term blackout.
⚠️ Attention: Never use sharp objects (knives, screwdrivers) to chip ice in the freezer. Damage to the evaporator, which is often located directly behind the plastic panel or in the wall, will lead to an immediate leak of freon and expensive repairs.
Regularly check the condition of the products and audit inventories. Try to label bags with the freeze date so you can use the food on a first-come, first-served basis. Compliance with the product proximity is also important: fish and meat should be stored separately from berries and ready-made dishes to avoid the transfer of odors.
Once every six months it is recommended to carry out preventive defrosting (even for NoFrost systems, at least for the sake of hygiene), wash the internal surfaces with a weak soda solution and check the cleanliness of the condenser grille at the back of the refrigerator. Dust on the radiator impairs heat transfer and causes the motor to wear out.
Is it possible to store food at -6 degrees?
The single snowflake mode (-6°C) is intended only for short-term storage of already frozen products (up to 1 week) or for making ice. Long-term storage of meat or fish at this temperature will lead to loss of their taste and possible spoilage in 2-3 weeks.
Frequently asked questions (FAQ)
Why is the temperature in the Atlant freezer -10 degrees, although the maximum mode is set?
Most likely, there was a leak refrigerant (freon) or the capillary tube is clogged. The cause may also be a malfunction of the compressor, which has lost its power. Diagnostics by a specialist is required.
What position of the thermostat knob is considered normal for the Atlant MXM 1704?
The middle position is considered optimal, usually numbers 3 or 4 on the scale. The exact value depends on the temperature in the room and the amount of food. In winter you can set less, in summer - more.
Why does the refrigerator take a long time to gain temperature after defrosting?
This is normal. After defrosting, the walls and food are warm. To reach the -18°C mode, an empty refrigerator takes 2-4 hours, and a fully loaded one - up to 24 hours.
Is it possible to install an Atlant refrigerator on an unheated balcony in winter?
No, most Atlant models are designed to operate at ambient temperatures from +10 to +32 degrees. In cold weather, the oil in the compressor thickens, which leads to its breakdown upon startup, and the plastic becomes brittle.