The appearance of extraneous sounds, the formation of ice or sudden cessation cooling often takes equipment owners by surprise. Atlant refrigerators are considered one of the most reliable units in the post-Soviet space, but even they are not immune from wear of parts or manufacturing defects. Before calling a technician, you should try to diagnose the problem yourself, since in many cases the repair turns out to be simple and affordable.
In this article we will analyze in detail the main causes of breakdowns and methods for eliminating them. Independent intervention requires accuracy, but can significantly save the family budget. It is important to understand that the complexity of the repair depends on the specific model and type of compressor installed in the device.
Many users mistakenly believe that repairs require a complex tool and deep knowledge of physics. In fact, more than 60% of breakdowns are associated with simple components that are easy to replace. If the compressor hums but does not start, in 80% of cases the problem lies in the start relay or thermostat.
Primary diagnostics and checking the power supply
The first step is always should be checking the power source. It often happens that the problem lies not in the refrigerator itself, but in the socket or extension cord. You need to make sure that the voltage in the network is stable, as surges can damage the electronics. Use a multimeter or connect another device to the same outlet to check.
If the outlet is OK, inspect the power cord for visible damage. Frayed cable or a melted plug is a direct safety hazard. In models with electronic control, it is worth checking whether the indicators on the display are lit. Lack of response may indicate a malfunction of the control module or an open circuit inside the housing.
In some cases, the unit may not turn on due to a triggered protective mechanism after a power surge. It is enough to disconnect the device from the network for 15–20 minutes and turn it on again. If the system electronic control has not reset the error, a more in-depth diagnosis will be required.
- 🔌 Check for voltage in the outlet using another device.
- 🔍 Inspect the power cord and plug for mechanical defects damage.
- ⏱ Pause 20 minutes before turning it on again to reset the error.
- 💡 Pay attention to the control panel indication (if any).
Problems with the thermostat and temperature control
One of the most common reasons for incorrect operation is the failure of the thermostat. This element is responsible for turning the compressor on and off depending on the temperature inside the chambers. If thermostat is faulty, the refrigerator may either not start at all, or work non-stop, turning food into ice blocks.
To check the mechanical thermostat (typical of older models), it must be removed. There are two or three contacts on its body. When checking with a multimeter in a cold state, the circuit should be closed. If the device shows a break, the part requires replacement. In electronic models, they are responsible for this temperature sensors, which can also fail.
⚠️ Attention: Before replacing the thermostat, be sure to disconnect the refrigerator from the power supply. Do not try to adjust the mechanics with a screwdriver if you are not sure of your actions - this may lead to depressurization of the capillary tube.
The thermostat replacement process usually takes no more than 30 minutes. The new element must have similar characteristics and capillary tube length. After installation, it is recommended to conduct a test run without loading food.
☑️ Checking the thermostat
Faults in the starting relay and compressor
If the motor-compressor hums, clicks, but does not start, or starts for a couple of seconds and stalls, most likely the problem is in the starting relay. This small device fits onto the compressor rod and provides the initial impulse to start the engine. In Atlant refrigerators relays of the RKT or RT series are often used, which wear out over time.
To diagnose the relay, you need to remove it and shake it. If a ringing sound is heard inside (as if from broken ceramic), it means that the bimetallic plate or coil is destroyed. It is also worth inspecting the contacts for carbon deposits. Replacing a relay is one of the simplest operations that does not require special tools other than a screwdriver and pliers.
In more complex cases, when the relay is working properly, but the compressor still does not work or gets hot, it may be necessary to replace the motor itself. This is a labor-intensive process that requires refrigerant charging, which is extremely difficult to do at home. In such a situation, it is better to contact a service center. evacuating the system and refilling the refrigerant, which is extremely difficult to do at home. In such a situation, it is better to contact a service center.
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| The compressor hums, but does not start | Faulty starting relay | Low |
| The motor runs constantly | Thermostat is faulty | Medium |
| The refrigerator is silent | Open circuit or burned out motor | High |
| A knock is heard inside the compressor | Mechanical destruction of components | Replacing the unit |
How to remove starting relay?
To remove the relay, you need to move it away from the compressor housing. It is held on by latches or a bar. Carefully pry the bar with a screwdriver and pull the relay down. Do not pull sharply so as not to damage the wires.
Eliminating problems with the defrost system (No Frost)
In models with the system No Frost a frequent problem is the formation of a “fur coat” on the evaporator, which blocks the circulation of cold air. This occurs due to a malfunction in the defrost system. The main elements that fail are: defrost heating element, defrost sensor or timer (in mechanical models).
If you notice that the back wall in the freezer is covered with ice, but it is warm in the refrigerator compartment, you need to check the heating element. To do this, its resistance is measured with a multimeter. Infinite resistance indicates a break in the heater coil. Replacing the heating element requires partial disassembly of the internal panel of the freezer.
It is also important to check the defrost sensor, which gives the command to turn on the heater. In good condition at room temperature it should “ring”. If the sensor is faulty, the system “does not know” that the ice has melted, or vice versa, does not turn on the heating. Operation cycle it is broken, and the ice grows again.
- 🧊 Defrost the refrigerator completely (at least 24 hours) before diagnostics.
- 🔌 Check the integrity of the heating element with a multimeter (there should be resistance).
- 🌡 Test the defrost sensor for signal continuity.
- 🌀 Make sure the fan rotates freely and is not jammed with ice.
⚠️ Attention: When defrosting the No Frost system, do not use a hairdryer or hot water to speed up the process. Sudden temperature changes can damage plastic parts and the evaporator. Allow the ice to melt naturally.
Replacing the seal and eliminating cold leaks
A poorly closing door is the cause of the constant formation of condensation and ice. Rubber seal over time it dries out, cracks or becomes deformed. If the door does not fit tightly, warm, moist air enters the chamber, causing the compressor to wear out.
You can check the tightness using a sheet of paper. Clamp the sheet with the door around the perimeter: if it pulls out without effort, it means that the seal does not fit in this place. Sometimes simply adjusting the door hinges or lubricating them helps. In more serious cases, the rubber band needs to be replaced.
A new seal for of the Atlant refrigerator can be found according to the device model. Before installation, it is recommended to keep the new rubber in warm water to make it more elastic. It is usually attached to a special groove or glue, depending on the design of the door.
Frequent questions and answers (FAQ)
Why does the Atlant refrigerator make a lot of noise after installation?
The noise may be caused by improper installation. Make sure the unit is level and the legs are firmly pressed to the floor. Also check that the pipes are not touching the wall or each other at the back. If the noise appears suddenly, the compressor shock absorbers may have worn out.
How often do you need to defrost a refrigerator with a drip defrost system?
Models with a drip system (crying evaporator) require manual defrosting approximately once every 6-12 months for hygienic cleaning, although technically they defrost themselves. Complete defrosting is necessary if the thickness of the ice on the rear wall exceeds 5 mm.
Is it possible to replace freon yourself?
No, replacing the refrigerant requires special equipment (vacuum pump, pressure gauge station) and licenses. Trying to refill on your own will damage the compressor and can be hazardous to health.
What to do if water appears inside the refrigerator?
Most often the drainage hole becomes clogged. Locate it on the back wall of the refrigerator compartment (bottom) and clean it with a soft wire or brush. Also check whether the condensate collection tray above the compressor has moved.