Modern two-chamber refrigerators Atlant deservedly enjoy high popularity due to their reliability, affordable price and simplicity of design. However, even the highest quality equipment, be it a budget model or an advanced one, can fail over time. Owners often encounter situations when the unit stops freezing, begins to make strange sounds, or becomes covered with an ice crust. In this case, self-repair becomes not just a way to save money, but also an opportunity to quickly return the equipment to life without waiting for the technician to arrive. No Frost, may fail over time. Owners often encounter situations when the unit stops freezing, begins to make strange sounds, or becomes covered with an ice crust. In this case, self-repair becomes not just a way to save money, but also an opportunity to quickly return equipment to life without waiting for the technician to arrive.
Before taking active steps, it is necessary to carry out an initial diagnosis and understand the nature of the malfunction. Two-chamber models have their own characteristics related to the circulation of refrigerant between the freezer and refrigerator compartments. Errors in identifying a symptom can lead to the purchase of unnecessary spare parts or aggravation of the breakdown. In this article we will analyze in detail the main components, methods for testing them and algorithms for restoring functionality.
Any manipulations with the electrical circuit or internal components should be carried out only after the device is completely disconnected from the network. If you are not confident in your abilities or see obvious damage to the wiring, it is better to contact professionals, since inept intervention can be dangerous.
Primary diagnosis and fault analysis
The first step in any repair is to accurately determine the symptoms. The refrigerator can behave in different ways: hum, but not freeze, work cyclically with long pauses, or, conversely, not turn off at all. Two-chamber models Atlant are characterized by a number of typical problems, knowledge of which narrows the scope of the search. For example, if there is cold in the freezer, but it is warm in the upper compartment, the problem may lie in the defrost system or a freon leak.
Visual inspection also plays a key role. Check the integrity of the rubber seals on the doors, the presence of condensation on the inner walls or, conversely, the absence of frost on the evaporator. Often, external signs indicate hidden defects. Diagnostics starts with listening to the operation of the compressor: if it is silent, but the light is on, the problem is in the start relay or thermostat.
⚠️ Attention: If you heard a sharp pop or smelled something burning wiring, immediately stop trying to turn on and check the condition of the electrical plug and socket. Ignoring these signs can lead to a short circuit.
For the convenience of classifying problems, you can use the following table, which will help compare symptoms with probable causes:
| Symptom | Probable cause | Necessary actions |
|---|---|---|
| The compressor hums, but does not start | Faulty start relay or compressor wedge | Replacing the relay, checking the windings |
| The refrigerator does not turn off | Circuit leakage or leakage freon | Searching for leaks, vacuuming, refilling |
| A lot of ice in the freezer | Malfunction of the defrost heating element or timer | Checking the defrost circuit, replacing the heating element |
| Extraordinary knocking or vibration | Improper installation or wear of shock absorbers | Aligning the legs, replacing shock absorbers |
Preparation for repair: tools and safety
High-quality repairs are impossible without the appropriate tools. To service two-chamber models Atlant you will need a standard home repair kit, supplemented with specific devices. The basic kit includes screwdrivers (Phillips and flathead), pliers, wire cutters and a multimeter. It is multimeter that will become your main assistant in checking electrical circuits.
If you plan to work with a cooling system, you may need more complex equipment, such as a Tesla meter to check the compressor or a leak detector. However, for most household repairs related to replacing sensors, heating elements or relays, a basic set is sufficient. Do not forget to prepare a container for collecting water if you plan to defrost or dismantle elements located in the evaporator area.
☑️ Basic repair kit
Pay special attention to organizing the workspace. The refrigerator must be moved away from the wall, allowing access to the rear panel and the bottom where the compressor is located. The floor must be dry and level to prevent heavy elements from slipping and falling. Before starting work, be sure to remove all shelves and drawers so that they do not interfere with the movement of the unit.
Repairing the defrost system and removing ice
One of the most common problems of two-chamber refrigerators Atlant with a system No Frost or drip defrosting is the formation of excessive ice. This happens when moisture does not have time to be removed from the system. In models with a “crying” wall, the drainage hole is often clogged. To clean it, you can use a soft wire or a special brush, carefully inserting them into the channel until it is completely free.
In No Frost systems, a defrost circuit consisting of a heating element, a defrost sensor and a timer (or electronic module) is responsible for removing moisture and defrosting the evaporator. If a fur coat freezes on the evaporator in the freezer, and the fan hums but does not spin due to ice, then the defrost cycle is broken. It is necessary to “ring” the heating element with a multimeter: if the resistance is infinitely high, the heating element has burned out and requires replacement.
⚠️ Attention: When replacing the heating element or sensors in the No Frost system, it is strictly forbidden to use sharp objects to chip ice. A breakdown of the evaporator housing will lead to an immediate leak of freon and expensive repairs.
It is also worth checking the defrost sensor, which is usually located on the evaporator. It should open the circuit when a certain temperature is reached. If the sensor is “stuck” in the open state, the heating element will never turn on, and the ice will grow endlessly. Replacing these elements usually does not require complex manipulations, but requires precise selection of the spare part model for a specific one. Atlant.
How to check a heating element without a multimeter?
If you don’t have a tester at hand, you can assemble a simple circuit with a light bulb and a battery, but this method is less accurate and safe only when completely disconnected from the network 220V. It is still safer to use the device.
Diagnostics and replacement of the starting relay
If the refrigerator is silent or emits a short beep and clicks, trying to start, but the compressor does not start, most likely the starting relay has failed. This small unit is responsible for supplying voltage to the compressor motor windings. Refrigerators Atlant often use RT series relays or more modern posistor analogues. Their failure is one of the most common reasons for the unit to stop.
To replace the relay, you must remove the rear protective cover at the bottom of the refrigerator. After disconnecting the wires, carefully remove the old relay from the compressor contacts. Visually inspect it: the presence of burning, melted plastic or a characteristic burning smell clearly indicates a malfunction. When purchasing a replacement, pay attention to the markings and number of contacts, as they may differ even within the same series.
After installing the new component, reassemble the structure in the reverse order and turn on the refrigerator. If the compressor starts up with a characteristic hum and begins to build up pressure (checked by touch by the temperature of the tubes), then the repair was successful. It is also important to check the current consumption, if you have the appropriate device, to ensure that the compressor itself is in good working order.
Replacing the thermostat and adjusting the temperature
Thermostat (temperature regulator) is the “brain” that commands the compressor to turn on and off depending on the temperature inside the chambers. If the refrigerator runs non-stop, overcooling food, or, conversely, remains silent for hours, allowing food to spoil, the problem may be in this unit. In two-chamber models Atlant the thermostat is usually located inside the refrigerator compartment or under the top cover.
To replace the thermostat, you must remove the regulator handle and the decorative trim. Beneath them lies the body of the device with a capillary tube, which goes into the evaporator. When dismantling, proceed with extreme caution: the capillary tube is very thin and can easily be pinched or burst. The new tube must be carefully placed in the same groove and secured with standard clips, otherwise the temperature readings will be incorrect.
After installing a new thermostat, adjustment may be required. Some models have sealed screws on the body that allow you to adjust the on and off range. However, for home use, the factory setting is usually sufficient. If the refrigerator begins to “clock” (turns on and off frequently at short intervals), perhaps the thermostat is selected incorrectly or its sensitive part is installed incorrectly.
Elimination of noise and vibration
Noisy operation of the refrigerator Atlant can be caused by both design features and malfunctions. If the humming has changed to knocking, clanging or metallic ringing, this is an alarming signal. Often the compressor itself becomes the source of vibration if the mounting bolts are loose or the rubber shock absorbers on which it is suspended are worn out. Check the tightness of all visible connections.
Another source of noise is the fan in the No Frost system. If ice has frozen on its blades or dust has gotten into the bearing, a hum or crackling sound will appear. In this case, the fan must be removed, cleaned of dirt and lubricated the bearing (if the design allows) or replaced entirely. It is also worth checking whether the tubes of the refrigeration circuit are touching each other or the housing - when the compressor vibrates, they can make a ringing sound.
- 🔊 Check whether the refrigerator is level on the floor: misalignment causes vibration of the housing.
- 🔩 Inspect the compressor casing: sometimes the metal protection rattles.
- ❄️ Make sure that the fan does not touch ice build-up.
If the noise is accompanied by heating of the compressor to the point where it cannot be touched, this may indicate an overload or problems with the engine cooling system. In such cases, the operation of the equipment should be stopped until the reasons are clarified.
Frequent questions and answers (FAQ)
Why does the Atlant refrigerator freeze but does not turn off?
This may indicate a freon leak (the compressor is wearing out, trying to gain temperature), a malfunction of the thermostat (it does not “sees” that there is already cold) or the door seal is broken. Also, the reason may be that the refrigerator is installed too close to or the ventilation grilles are clogged at the back.
Is it possible to replace the compressor yourself?
Theoretically it is possible, but this requires special equipment: a burner, a vacuum pump, a pressure gauge station and a supply of freon. In addition, soldering of copper tubes is necessary. Without experience and tools, it is impossible to carry out high-quality replacement and refilling, so it is better to entrust this work to professionals.
How often do you need to defrost a two-chamber Atlant?
Models with the No Frost system do not require manual defrosting; it is enough to wash them 1-2 times a year. Models with a drip system (crying wall) in the refrigerator compartment also do not need frequent defrosting, but it is recommended to defrost the freezer completely at least once every 6-8 months to maintain efficiency.
What to do if water appears inside the refrigerator?
Most often, the drainage hole in the back wall of the refrigerator compartment is clogged. It needs to be cleaned carefully. The second reason is that the refrigerator is skewed, which is why water does not flow into the tray, but pours out. The third reason is damage to the door seal, which allows warm air to pass through and condenses.