The situation when Atlant refrigerator stops freezing often takes you by surprise, threatening food spoilage. You open the door, and it’s warm, or, conversely, the food has turned into an ice block. These are classic signs of a malfunction in the cooling system that owners of equipment with both one and two compressors encounter.
Before you panic and call a technician, it is necessary to carry out an initial diagnosis. Often the problem lies in trivial things that you can fix yourself in a few minutes. However, ignoring serious ones can lead to expensive overhauls. prohibited. malfunctions may lead to costly major repairs.
In this article we will look in detail why Atlant refrigerator does not gain temperature, how to distinguish a software failure from a mechanical failure and in which cases independent intervention is strictly prohibited.
The first thing you should pay attention to is the nature of the unit’s operation. Is the motor humming, is there a light inside the chamber, and how long ago did you defrost it? These details will help narrow down the search for the problem.
Checking simple causes: settings and defrosting
Often users accidentally change the settings of the thermostat or operating mode. If the chamber is warm, check the position of the regulator knob or digital display. Perhaps one of the household members accidentally switched the mode to “Vacation” or minimal cooling.
The second common scenario is the formation of a “snow coat”. If you haven't defrosted the unit in a while, ice could be blocking the air circulation channels. In models with the system No Frost this happens less often, but if the defrost malfunctions, ice still accumulates.
⚠️ Attention: If you notice a thick layer of ice on the back wall, do not try to chip it off with a knife. You can damage the evaporator, which will lead to a freon leak and difficult repairs.
For proper defrosting, you must completely disconnect the device from the network. Leave the doors open for at least 10-12 hours. During this time, all the condensate will have time to melt and evaporate.
After defrosting, turn on the equipment and let it work for 2-3 hours without loading food. If the temperature began to drop, then the problem was icing. If compressor it hums, but there is no cold, or the motor is silent, read on.
Malfunctions of the thermostat and temperature sensors
One of the common reasons why Atlant refrigerator does not freeze is the failure of the thermostat. This element is responsible for turning the compressor on and off. If it is broken, the motor may either not start at all, or work without stopping, trying to reach a non-existent temperature threshold.
In modern models, instead of a mechanical regulator, electronic ones are used temperature sensors. They transmit signals to the control module. If the sensor is “lying,” the controller does not give a command to start cooling, even if the chamber is already warm.
Diagnostics of the thermostat at home is possible, but requires caution. For mechanical models, you can close the contacts with wires. If after this procedure the compressor starts working, the regulator is faulty and requires replacement.
How to check the thermostat with a multimeter?
Remove the regulator, set the multimeter to test. At room temperature the contacts should ring. If you put the sensor in the freezer for 15 minutes, the circuit should break (stop ringing).
Symptoms of sensor failure often manifest themselves in erratic behavior (unstable behavior) of the equipment. For example, a refrigerator may be silent for a long time, and then suddenly turn on at full power. Or an error appears on the display, for example F4 or F5, which indicates a specific failure in the circuit.
Replacing a sensor or thermostat is a simple procedure, but requires precise selection of spare parts for your model. Atlant. The incorrect temperature range of the new part will lead to incorrect operation.
Problems with the compressor and start relay
The heart of the refrigerator is compressor. If it doesn't start, there won't be any cold anywhere. It often happens that you hear a quiet click, a buzz lasts a couple of seconds, and then another click and silence. This is a classic symptom of a faulty start relay or the motor itself.
The start relay is a small plastic block that is attached to the side of the compressor. It is this that provides the impulse to start the engine. Over time, the contacts inside the relay burn out, and it ceases to perform its function.
What to do in this case? You can try replacing the relay. This is an inexpensive part that is easy to find in spare parts stores for refrigeration equipment. Remove the back cover, disconnect the wires, remove the old relay and install a new one, strictly observing the orientation (arrow up).
☑️ Compressor diagnostics
If replacing the relay did not help, and the motor is still humming and clicks, but does not start, perhaps the compressor is jammed or the winding is burned out. In this case, you need to call a technician to replace the unit, since repairing the compressor yourself at home is impossible.
⚠️ Attention: If the compressor gets very hot (more than 90 degrees) and has a smell of burnt insulation, immediately unplug the refrigerator. Operation in this condition can lead to a fire.
Freon leakage and blockage of the capillary system
If the compressor operates continuously, hums, but there is no cold in the chambers, and the condenser (grid at the back) remains only partially cold or warm, most likely occurred refrigerant leak. Freon is a gas that circulates through the system, transferring heat. Without it, the cooling process is impossible.
Leaks often occur in places where pipes are soldered or due to corrosion of the evaporator, especially if you carelessly removed the ice with a knife. Also, freon can evaporate through microcracks that are not visually noticeable.
The second option is clogged capillary tube. Inside the system there is a very thin tube through which freon passes under pressure. Over time, plugs from oil or moisture oxidation products may form there. This blocks the circulation of gas.
It is difficult to diagnose a leak or blockage on your own. The technician uses a leak detector or pressure gauge station. He will check the pressure in the system. If there is no pressure at all, they look for a hole. If the pressure is high and there is no circulation, it means there is a plug.
Repair in both cases is difficult. You need to find the leak, solder it, vacuum the system (remove air and moisture) and fill with new freon of a strictly defined brand and weight.
| Symptom | Probable cause | Nature of motor operation | Complexity repair |
|---|---|---|---|
| Heat in both chambers | Freon leak | Works without stopping | High (a master is needed) |
| The motor does not turn on | Relay/thermostat malfunction | Silence or clicking | Medium (you can do it yourself) |
| Ice in one compartment | Clogged or defrosting problem | Works cyclically | High |
| Humming, but not freezing | The compressor is jammed | Humming and clicking | High (replacement motor) |
Failures in the defrost system (for No Frost models)
In refrigerators Atlant with a system No Frost (or “Crying evaporator” in some models), the defrost system is responsible for removing moisture. If it fails, the evaporator becomes overgrown with ice, blocking the cold air supply channels.
The key elements of this system: heating element (heater), defrost sensor and timer (or electronic module). If the heating element burns out, the ice does not melt. If the sensor is “stuck”, it does not give a command to turn on the heating. If the timer is stuck in the cooling mode, defrosting will never start.
Visually this manifests itself as follows: it seems cold in the freezer (the evaporator is located there), but it is warm in the refrigerator compartment. The fan may hum, but the air simply does not pass through the ice plug.
To check, you need to get to the evaporator (remove the back panel in the freezer). If there is an “iceberg” there, the defrosting system does not work. It is necessary to ring the heating element and sensor with a multimeter. The resistance of the heating element must be within normal limits (usually 200-400 Ohms), and the sensor must change resistance as the temperature changes.
Faults of the electronic control module
Modern Atlant refrigerators equipped with “smart” electronics. The control board analyzes data from all sensors and controls the compressor, fan and heating elements. Power surges in the network can lead to burning of elements on the board.
Signs of module failure are varied: chaotic turning on and off of indicators, lack of response to buttons, inability to change the temperature, constant squeaking. Sometimes the refrigerator may behave adequately, but not start the compressor.
Repairing the module requires deep knowledge of electronics. It is often easier and more reliable to replace the entire board than to try to resolder burnt capacitors or relays. However, before you sin on the electronics, make sure that all the wires are intact and the contacts are not oxidized.
⚠️ Attention: Before checking the contacts on the control board, be sure to unplug the refrigerator from the outlet. Residual voltage can shock or damage sensitive electronics.
Frequently asked questions (FAQ)
Why does the Atlant refrigerator work without interruption?
Continuous operation often indicates a freon leak, wear of the door seal (warm air enters the chamber) or breakdown a thermostat that does not give a stop command. This can also happen if you put hot products in the chamber.
What does the flashing Alarm indicator on Atlanta mean?
The indicator Alarm signals that the temperature in the chamber has risen above the permissible norm. If you have just loaded food or defrosted the refrigerator, it will turn itself off after a few hours. If it is constantly on, check the tightness of the door closure and the operation of the compressor.
Is it possible to operate the refrigerator if it does not freeze?
It is strictly not recommended. In addition to food spoilage, operating a compressor without normal heat exchange (without freon or when clogged) leads to its overheating and rapid failure. It is better to turn off the device until the reasons are determined.
How often do you need to change the rubber seal?
The service life of the seal is on average 5-7 years. If the elastic is cracked, has lost elasticity or no longer fits tightly (check with a sheet of paper), it needs to be replaced. A loose fit causes the compressor to wear out.