The situation when in a two-chamber refrigerator Atlant the upper chamber stops freezing causes understandable concern. Products begin to deteriorate, and condensation appears on the shelves or, conversely, they become warm. This is a common malfunction that can be caused by both simple operating errors and serious technical problems.
Before calling a technician or panicking, it is necessary to carry out an initial diagnosis. In most cases, the problem lies in violation of the rules of use or failures in the automatic defrosting system. Understanding the principles of operation refrigeration circuit will help you quickly determine the source of the malfunction and make the right decision.
In this article we will analyze in detail the main reasons for the lack of cold in the freezer compartment of models Atlant with two doors. We will look at mechanical damage, electrical problems and features of the refrigerant so that you can independently identify the breakdown.
Checking the operating mode and tightness of the chambers
Often users accidentally change the settings by switching the device to defrost mode or turning off the compressor. Check the control panel and make sure the compressor indicator light is on. If the refrigerator is equipped with a mechanical regulator, make sure that it is not set to minimum or in the “0” position.
The second important aspect is tightness of the seal. The rubber gasket around the perimeter of the door wears out over time, cracks, or simply becomes dirty. Through a loose fit, warm air enters the chamber, which the cooling system does not have time to cool, creating the appearance of a breakdown.
⚠️ Attention: If the rubber seal has visible damage or creases, its replacement is a mandatory procedure. Attempts to glue the old seal will only give a temporary effect.
To check the tightness, you can use a simple method with a sheet of paper. Clamp the sheet with the door in different places around the perimeter. If the paper falls out or is pulled out without resistance, it means that the tightness of the circuit is broken in this place.
Problems with the No Frost system and ice
In models Atlant with the system No Frost a frequent reason for the lack of cold is the formation of a “snow coat” on the evaporator. This happens when the melt water drainage channel becomes clogged or the defrost heating element fails. Ice blocks air circulation, and the cold simply does not reach the food.
If you notice that the back wall of the chamber is covered with a thick layer of ice, and the fan is humming but not blowing, most likely a complete defrosting is required. Unplug the appliance for at least 24 hours (preferably two days), leaving the doors open. This will allow the ice to completely melt and clear the air ducts.
- ❄️ A thick layer of ice on the back wall blocks the air flow.
- 🔌 Unplugging for 24 hours often solves the problem of clogged drainage.
- 🌬️ The fan may not work due to icing of the blades.
After defrosting, turn on the refrigerator and listen. If after a few hours the cold appears, then the problem was with ice. However, if after a week the situation repeats, you will need to replace The defrost heating element or the defrost sensor.
Why can’t you chip off the ice with a knife?
Mechanical removal of ice with sharp objects often leads to puncture of the evaporator. In this case, freon will leave the system, and repairs will become economically unfeasible.
Malfunctions of the compressor and start relay
The compressor is the heart of the refrigerator, and if it does not work, there will be no cold anywhere. In two-chamber Atlantakh two compressors are often used: one for the chamber, the other for the freezer. If only the top does not freeze, then the problem is in the upper unit or its piping.
Pay attention to the sound of operation. If you hear a click, a hum for a few seconds, and then silence, it is most likely out of order. starting relay. This is a small part that starts the motor. Replacing it is inexpensive and can be easily done with your own hands.
In the case when the compressor is silent or, conversely, works continuously without shutting down, but there is no cold, the situation is more complicated. This may indicate an interturn short circuit of the windings or a loss of compression properties. In this case, you need to call a specialist to measure pressure and current.
☑️ Compressor diagnostics
Freon leak and clogged capillary tube
One of the most unpleasant reasons is a refrigerant leak. Freon circulates in a closed loop, and if a microcrack appears in the tubes, the gas evaporates. Without a sufficient amount of refrigerant heat exchange does not occur, and the temperature in the chamber rises.
A clogged capillary tube is the other side of the coin. Oil circulates in the system, which over time can thicken or mix with wear debris, forming a plug. In both cases, the symptoms are similar: the compressor works, but there is no cold, and the condenser (grid at the back) remains only partially cold or warm.
| Symptom | Probable cause | Action |
|---|---|---|
| The compressor is hot, but not starts | Malfunction of the relay or motor | Replacement of the relay, diagnostics of the windings |
| The refrigerator hums, but there is no cold | Freon leak or blockage | Search for leaks, evacuation, filling |
| Ice only at the entrance to the evaporator | Partial blockage of the capillary | Purge the system with nitrogen |
| Cold condenser completely | Lack of freon in the system | Sealing and filling with new gas |
It is impossible to eliminate a leak or blockage on your own, since specialized equipment for evacuation and filling is required. Attempts to simply add gas without eliminating the cause will only give results for a few weeks.
Failures in the operation of the thermostat and electronics
The thermostat (thermostat) is responsible for turning the compressor on and off depending on the temperature inside the chamber. If its sensitive element (bellows) has lost its tightness or has moved, it may not give a command to start cooling.
In modern models Atlant with electronic control, control moduleis responsible for all processes. Malfunctions in its operation, oxidation of contacts or power surges in the network can lead to the board simply not sending a signal to the compressor.
⚠️ Attention: Electronic modules are sensitive to voltage changes. If light fluctuates frequently in your network, use a stabilizer to avoid costly board repairs.
To diagnose a thermostat in mechanical models, you can close its contacts directly. If after this procedure the refrigerator starts working, it means that the regulator is faulty and requires replacement. Remember that new thermostats may have slightly different characteristics, so it is better to look for original spare parts.
The influence of external factors and operating rules
Sometimes the reason lies not in the breakdown, but in the operating conditions. If the refrigerator is located close to the wall, the radiator cannot effectively transfer heat. It is also important that the room where the equipment is located is not too cold (below +10°C) or hot.
Product loading also plays a role. If you put a large pot of hot soup in the chamber or filled the freezer with warm food to capacity, the system may not be able to cope with the heat influx. Air should circulate freely between the products.
- 🌡️ The minimum temperature in the room for the refrigerator to operate is +10°C.
- 📦 Do not place hot products inside, this increases the load on the compressor.
- 🧊 Leave a gap of 5-10 cm between back wall and furniture for ventilation.
Following these simple rules will extend the life of your Atlanta and prevent many cooling problems. Regular washing and maintenance of equipment are also an important part of prevention.
When you need to call a technician
If simple methods like defrosting and checking the electrical system did not help, most likely the problem requires professional attention. This is especially true in cases where it is necessary to open of the refrigeration circuit, solder pipes or replace the compressor.
The technician will be able to accurately diagnose a leak using a leak detector, determine the condition of the oil and carry out high-quality refilling with freon. Self-repair in such cases often leads to final breakdown of the unit.
Is it possible to replace the compressor yourself?
Theoretically, it is possible if you have the skills to solder copper tubes and a vacuum pump. However, without special equipment it is impossible to efficiently remove moisture from the system, which will lead to rapid failure of the new compressor.
How long does it take to repair an Atlant refrigerator?
Replacing a thermostat or relay takes about 1 hour. Repairing a cooling system with freon charging can take from 2 to 4 hours, including time for evacuation of the system.
Why did the cold appear after defrosting, but disappeared again a week later?
This is a sure sign of a malfunction of the defrost system (heating element, sensor or timer). Ice accumulated again and blocked the channels. Diagnostics of the defrost electrical circuit is required.
Where can I find the diagram of my Atlant refrigerator?
The diagrams are usually located on the back wall of the device or in the operating instructions. They can also be found on the manufacturer’s official website by device model.