The situation when meat hardens in the freezer in a couple of hours, and in the main compartment Atlant milk sours within a day is a classic sign of poor circulation cold. Owners often panic, believing that the compressor has failed, but in most cases the problem lies in a mechanical obstruction or a failure in air flow control. The refrigeration unit regularly generates low temperature, but physically cannot deliver it to the upper or lower (depending on the model) chamber.
Two-chamber refrigerators Atlant are designed in such a way that the evaporator is often located in the freezer, and cold is supplied to the refrigeration compartment forcibly or naturally through special channels. If one of the compartments is functioning normally, this means that there is refrigerant in the system, the compressor starts, and the thermostat gives signals. This means that you need to look for a defect in the air distribution system or in elements blocking this process.
In this article we will look in detail why the refrigerator compartment does not cool, although the freezer is working at full capacity. We will consider both simple operating errors that can be eliminated in 5 minutes, and complex technical malfunctions that require the intervention of a specialist. Understanding the operating principle of your model Atlant will help save time and money on diagnostics.
The principle of operation of the Atlant cooling system
To understand the essence of the breakdown, you need to briefly consider device. In refrigerators Atlant with a system No Frost or “Crying Evaporator”, the cold is created in one place. In models with one compressor, this cold is distributed between two chambers. If the freezer freezes, it means that the cycle of compression and expansion of freon is successful.
The problem of “separate” cooling most often lies in the fact that the cold air simply does not reach its destination. In systems with a manual defrost or drip system, this may be caused by freezing of the channel. In modern models with electronic control, the distribution is controlled by damper (damper), which opens at the command of the thermostat.
If the damper is stuck in the closed position or the temperature sensor in the refrigerator compartment is “lying,” the controller does not give a command to supply cold. As a result, the compressor can operate in short cycles, content with the temperature in the freezer while the main compartment becomes warm.
- ❄️ The cold is generated in the evaporator, often hidden behind a plastic panel.
- 🌬️ A fan (in No Frost) or convection (in drip) transfers the cold air.
- 🚪 The damper regulates the volume of air entering the refrigerator compartment.
⚠️ Attention: If you hear the compressor running, but there is no cold anywhere except the freezer, do not try to immediately disassemble the back wall. First, rule out the simple reasons described below.
The most common reason: violation of operating rules
Before sounding the alarm and looking for spare parts, check whether the basic rules of use have been violated. Often, users themselves block the air supply channels, densely filling the shelves with products. If there is no gap between the products and the back wall, air circulation air circulation is disrupted.
This is especially critical for models Atlant with the No Frost system. If you put a hot pan in or close the door tightly after a long wash, excess ice may have formed inside. An ice plug in the channel blocks the path of the cold flow. In such cases, the freezer continues to freeze, since the evaporator is located there, and the temperature in the refrigerator compartment is above zero.
Also check the rubber seals. If the refrigerator door does not fit tightly, warm air constantly enters there. The cooling system may not be able to cope with the heat influx, especially if the thermostat is set to minimal cooling.
Sometimes the problem is solved by complete defrosting. Disconnect the device from the network for 10-12 hours (minimum). This will allow the ice in the hidden channels to completely melt and drain. After switching on, the cold should begin to flow evenly.
☑️ Check before calling a technician
Malfunctions of the defrosting system (for No Frost models)
If defrosting did not help, or ice builds up again after a couple of days, the automatic defrosting system has probably failed. In refrigerators Atlant this is a complex of elements: Defrosting heating element, a defrost sensor and a timer (or electronic control module). If the heating element burns out, the evaporator becomes overgrown with a “fur coat” that blocks the channels.
The fan in such cases may hum, but air does not pass through the ice shell. The freezer can still cool due to direct contact with the evaporator, but the cold does not reach the upper chamber. Diagnostics requires removing the back panel in the freezer and checking the resistance of the heating element with a multimeter.
The defrost sensor often fails along with the heating element. He “does not see” that the evaporator is covered with ice and does not give a command to turn on the heating. As a result, the refrigerator operates in constant cooling mode, building up ice until the channels are completely clogged.
| System element | Symptom of failure | Probability |
|---|---|---|
| Defrost heating element | Ice build-up, lack of cold in the chamber | High |
| Defrost sensor | Heating does not turn on, evaporator freezing | Medium |
| Defrost timer | The refrigerator does not go into defrost mode | Medium |
| Fan | Noise, lack of air circulation | Low |
⚠️ Attention: Checking the heating element and sensors requires skills in working with electricity and removing plastic panels. Careless movement can break fragile latches or damage the wiring.
How to check the heating element with a multimeter?
To check, you need to call up the resistance of the heating element. The normal resistance value of a working heating element is usually from 200 to 400 Ohms. If the device shows an open (one on the left or zero depending on the model) or a short circuit, the element requires replacement. Before checking, be sure to unplug the refrigerator!
Problems with the damper and thermostat
In two-chamber refrigerators Atlant with electronic control, the air damper is responsible for the temperature in the refrigeration chamber. This is a mechanical curtain with an electric drive. If it is jammed in the closed position, the cold simply does not enter the food compartment.
The cause of jamming may be mechanical debris, ice or failure of the damper motor. It is also worth checking thermostat or the temperature sensor in the refrigerator compartment itself. If it transmits incorrect data (for example, it’s -10°C), the control module will not open the damper.
In models with mechanical control (one “twist” inside), the thermostat may be working properly, but its capillary tube could have moved or lost contact with the evaporator. In this case, the temperature adjustment becomes incorrect.
- 🔧 The damper may get stuck due to ice on the drive mechanism.
- 🌡️ A faulty temperature sensor “deceives” the controller.
- ⚙️ A mechanical thermostat may require calibration or replacement.
Diagnostics of the damper often requires disassembling the internal panel of the refrigerator compartment. Visually check that there are no obstructions to the movement of the curtain. When you turn on the power (or change the temperature setting), you should hear a quiet hum from the motor and see the movement of the damper.
Freon leak and capillary system blockage
A more serious situation is a partial refrigerant leak or blockage. If freon leaks, the amount is only enough to cool the first section of the evaporator (in the freezer). The refrigerant simply does not reach the refrigeration chamber, as the pressure in the system drops.
Symptoms: the freezer freezes well (sometimes even too much), but the refrigerator compartment is warm. The compressor may run almost non-stop as it tries to gain temperature. On the back wall of the freezer, only a corner or part of the tubes may freeze.
Clogged capillary tube gives a similar picture. Evaporation products or dirt clog the narrow hole, preventing the circulation of freon. The pressure at the compressor outlet increases and at the evaporator inlet it drops. The cooling efficiency decreases sharply.
In both cases, you need to call a technician with equipment to find leaks, vacuum and refill the system. It is impossible to fix these faults on your own without special tools and soldering skills.
Diagnostics and error codes on the display
Modern models Atlant with electronic control can themselves report a problem. If the red light on the display lights up or the temperature indicator flashes, this is a signal of a malfunction. Some models, when certain combinations of buttons are pressed (for example, holding down the defrost and setting buttons), go into service mode.
In service mode, you can see error codes. For example, an error in the refrigerator temperature sensor or an error in the damper motor. The decoding of the codes depends on the specific series of the refrigerator, but they will accurately indicate the direction of the search.
If there is no display, use the exclusion method. Check if the fan is spinning (in No Frost). Check to see if the back wall is frozen. If at the back of the compressor area one tube is hot and the other is barely warm (instead of warm and cold, respectively) - this is a sign of problems with freon or compression.
⚠️ Attention: Technical characteristics and the availability of a service mode depend on the year of manufacture and model. Interface details may vary, so check the button combinations in the official instructions for your specific device.
Frequently asked questions (FAQ)
Why does the Atlant refrigerator take a long time to get cold after defrosting?
After complete defrosting, the refrigerator takes time (from 2 to 6 hours) to exit to operating mode. At this time, the compressor works intensively. If after 6-8 hours the temperature has not stabilized, the seal may be broken or there is a freon leak.
Is it possible to operate the refrigerator if only the refrigerator compartment is not working?
For a short time - yes, the food in the freezer will not spoil. However, prolonged operation in this mode is harmful to the compressor, which can overheat while working without stopping. In addition, bacteria will begin to multiply in the warm chamber.
How to understand that the defrost heating element has burned out?
Without disassembly - based on indirect signs: ice freezing on the back wall of the freezer (“fur coat”), lack of cold in the upper chamber when the compressor is running. An accurate answer will only be given by checking the heating element with a multimeter after removing the panel.
What to do if the damper in the Atlant refrigerator does not open?
First try defrosting the refrigerator for a day - the ice could have jammed the mechanism. If this does not help, you will need to replace the damper motor or the damper itself. You can temporarily prop it in the open position, but then it will be too cold in the refrigerator compartment, and warm in the freezer.
Why does the Atlant refrigerator beep, although the freezer is working?
A sound signal usually indicates an increase in the temperature in the refrigerator compartment above the permissible level. Even if the freezer is freezing, the sensor in the upper compartment detects “heat” and sounds an alarm. This confirms that there is a violation of the cold circulation between the chambers.