The situation when the refrigerator compartment in the refrigerator suddenly stops working Atlantcan unsettle any owner. Unlike a freezer, where food can be stored for a long time, the upper compartment requires constant maintenance of a temperature of about +2...+5 degrees. If you open the door, and it’s warm or the food starts to thaw, you need to react urgently.
The first step is to carry out an initial diagnosis to understand the scale of the problem. Often the cause is a banal violation of operating rules or a minor malfunction that can be fixed without calling a technician. However, in a number of cases, serious intervention is required in refrigeration circuit or replacement of units.
In this article we will analyze in detail why the upper chamber does not cool, how to distinguish a simple blockage from a complex breakdown, and in which cases independent repair is impossible. Understanding your model's design will help you save time and money.
⚠️ Attention: If you hear a loud bang or smell a burning smell, immediately unplug the appliance. Further operation may lead to fire or electric shock.
Primary diagnostics: checking simple causes
Before looking for complex technical faults, it is worth eliminating the human factor. Very often, users themselves violate the temperature regime without noticing it. Check to see if it has moved thermostat to the “minimum” or “off” position. In models with electronic control, the program may have gone wrong, and you just need to restart it.
Pay attention to the tightness of the door. If the rubber seal wears out, becomes dirty or deformed, cold air will evaporate, and warm air will flow inside. The chamber will not be able to reach the desired temperature, and the compressor will work non-stop, trying to compensate for heat inflows.
It is also worth checking whether the refrigerator is overloaded with food. If you have just placed a large amount of warm food or a hot pan in the chamber, the system may not be able to cope with the sudden increase in heat. In this case compressor works for wear, but does not have time to cool the volume.
- 🔍 Check the position of the thermostat knob or the settings on the display.
- 🚪 Inspect the rubber seal around the perimeter of the door for cracks.
- 🌡️ Make sure that the food does not block the cold air supply channels.
- 🔌 Check whether the plug is tightly inserted into the socket and whether there is voltage in the network.
Problems with the defrosting system and freezing
One of the most common reasons why the refrigerator compartment does not work in two-chamber models Atlant with a system No Frost or “crying” wall, there is a violation of the defrosting cycle. If the evaporator is covered with a thick coat of ice, cold air simply cannot circulate through the chamber. The fan is either blocked by ice or the air channels are completely blocked.
In No Frost systems, defrosting of the evaporator is controlled by TEN (heating element), defrost sensor and timer (or electronic module). If one of these elements fails, the ice does not melt, but grows. Over time, the ice cocoon blocks the operation of the fan, and the cold stops flowing into the refrigerator compartment, although the freezer may continue to freeze.
Models with a drip system are characterized by freezing of the rear wall. If the ice layer becomes too thick, thermal conductivity is impaired and the temperature sensor does not read correctly. This leads to the compressor turning off ahead of time, without having time to cool the chamber to the required values.
☑️ Diagnostics of the defrosting system
The easiest way to test this hypothesis is complete defrosting. Turn off the appliance and leave the doors open for at least a day. If after turning on the cold appears and lasts for several days, and then disappears again, the problem is definitely in the defrosting system.
Malfunctions of the thermostat and temperature sensors
The thermostat (in mechanical models) or temperature sensor (in electronic) are the “eyes” of the refrigerator. It is these elements that tell the compressor when to turn on and when to stop. If the thermostat is faulty, it may “think” that it is already cold in the chamber and not give a command to start the motor.
In refrigerators Atlant with two compressors, each compartment has its own independent control circuit. Therefore, a breakdown of the refrigerator thermostat does not affect the operation of the freezer. You can hear the motor running below, but the cold does not enter the upper part because the control circuit is open.
Electronic sensors, such as K-59 or TAM-133 in mechanics, or digital sensors in models with a display, lose accuracy over time. They can transmit underestimated temperature readings, which is why the refrigerator is simply “lazy” to turn on. Replacing these elements usually does not require complex tools and is available if you have the skills.
⚠️ Attention: When replacing a thermostat, it is important to choose the right model. The capillary tube of the new sensor must be the same length as the old one, otherwise the refrigerator will not work correctly.
Refrigerant leakage and problems with the compressor
If after defrosting and checking the electrical system the problem does not go away, it may have occurred freon leak. The refrigerant circulates in a closed circuit, and if a microcrack appears in the tubes or evaporator, the gas escapes. Without enough freon, refrigeration capacity drops to zero.
Signs of a leak are often:
- ❄️ The freezer is working, but the refrigerator compartment is warm.
- 🔊 The compressor works almost without interruption or turns on for a few seconds and clicks.
- 🌡️ The condenser (grid at the back) remains cold or warm only partially.
- 💨 No characteristic noise of flowing gas (gurgling) when the engine stops.
Compressor may also fail mechanically. If the motor hums but does not start, or makes a metallic clanging sound, the piston group may be jammed or the winding may be burned out. Modern refrigerators Atlant often have inverter compressors, the diagnosis of which requires special equipment.
Is it possible to fill a refrigerator with freon yourself?
Independent refueling is impossible without a vacuum pump and a pressure gauge stations. In addition, it is necessary to know exactly the type and amount of refrigerant, and also find the location of the leak. An attempt to “just add gas” will lead to a quick re-breakdown.
Table: Comparison of symptoms and probable causes
To make it easier for you to navigate the symptoms, we have compiled a summary table of the main malfunctions. Pay attention to the combination of signs, this will help narrow down your search.
| Symptom | Probable cause | Difficulty of repair | Do you need a master |
|---|---|---|---|
| The chamber is warm, the motor is not turns on | Thermostat or start relay is faulty | Low | No (with skills) |
| The freezer is freezing, the top is warm | Freon leak or blockage capillary | High | Yes |
| Ice build-up on the back wall | Failure of the defrost system (heating element, timer) | Average | Desirable |
| The compressor hums and clicks | Start relay or compressor wedge | Medium/High | Yes |
| The refrigerator is turned off, but it’s warm inside | Problem with the electrical network or plug | Low | No |
The table shows that there are some problems are solved by replacing a cheap part, while others require intervention in the sealed circuit. Freon leakage in the foamed part of the housing (evaporator inside the wall) often makes repairs economically unfeasible.
DIY Repair: step-by-step instructions
If you decide to try to fix the problem yourself, start with replacement thermostat or start relay. These are the most common and accessible units for repair. To work, you will need a multimeter, a screwdriver and, possibly, new spare parts.
First get to the thermostat. In refrigerators Atlant it is often located inside the chamber under a plastic cover or outside on top. Unplug the refrigerator, remove the regulator knob and dismantle the housing. Disconnect the wires, first remembering or photographing their location.
Check the thermostat with a multimeter in dial mode. At room temperature the contacts should ring. If the device shows a break, the part is faulty. Also check the compressor start relay: it should be easy to remove from the motor rod. There should be no burning inside, and the contacts should be clean.
If you change the defrost heating element, you will need to completely disassemble the inside of the freezer (in No Frost models). Remove the back panel, get to the evaporator and replace the heating element. Don't forget to check the defrost sensor, which is often included.
⚠️ Attention: Technical characteristics of refrigerators may vary depending on the year of manufacture and series. Parts from the model Atlant 4008 may not fit 4502. Always check the spare part numbers against the technical data sheet.
When you need to call a professional technician
There are a number of situations when self-repair is not only useless, but also dangerous. If the problem lies in sealed circuit, you will need skills in rolling copper tubes, evacuating the system and charging freon. It is impossible to do this efficiently without special equipment.
Call a specialist if:
- 🛑 The compressor has been replaced, but the refrigerator still does not cool.
- 🛑 You find an oily stain under the refrigerator or on the walls inside.
- 🛑 The evaporator needs to be replaced, especially if it is foamed in the housing.
- 🛑 The electronic control module is burnt out or displays errors.
A professional technician will conduct a full diagnosis, find the leak using a leak detector and replace the filter drier, which is mandatory in case of leakage. High-quality repairs will extend the life of your Atlanta for several more years.
Frequently asked questions (FAQ)
Why does ice freeze in the Atlant refrigerator compartment?
Ice can accumulate due to a malfunction of the defrosting system (the heating element or timer has burned out), a loose door or moisture from the food. Also, the cause may be a clogged drain hole through which water should go into the evaporator.
How long should the Atlant refrigerator compressor rest?
In normal mode, the compressor operates for about 20-40 minutes, followed by a pause (rest) lasting from 15 to 40 minutes. If the motor runs non-stop or turns on too often, this is a sign of a malfunction.
Is it possible to operate the refrigerator if one chamber does not work?
For a short time - yes, but not recommended. If the upper chamber is not cool, food may spoil. If the problem is a leak, running the compressor idle can lead to its final breakdown.
How to understand that the compressor has burned out?
If you hear a hum or click when you turn it on, and after a few seconds the plugs are knocked out or the thermal protection is triggered, and the motor itself is hot, most likely the compressor is jammed or in the winding short circuit.