Refrigeration equipment from the Belarusian plant Atlant is deservedly popular due to its affordable price and reliability, but even time-tested equipment can fail over time. The owner is often faced with a situation when the unit stops freezing, makes strange sounds or starts leaking, and he is faced with a choice: call a technician or try to fix the breakdown himself. In this article, we will analyze in detail diagnostic algorithms and repair methods that will help you bring your favorite household appliances back to life without extra costs.
Independent intervention requires caution, but in many cases the problem lies not in complex electronics or depressurization of the circuit, but in simple mechanical faults. Understanding the principles of operation of the compressor, thermostat and defrost system will allow you to accurately determine the cause of the failure.
The following sections will help you systematize your knowledge of typical breakdowns and methods for eliminating them. We will consider both simple cases of replacing a seal or adjusting legs, as well as more complex scenarios associated with replacing sensors or a start relay. A competent approach to repair will extend the life of your refrigerator refrigerator and avoid expensive service.
Primary diagnosis: why the refrigerator stopped cooling
If you find that the food in the main chamber has spoiled or the “fur coat” has frozen, the first It is worth carrying out a visual inspection and initial diagnosis. Often the reason is trivial: a door seal is broken, the chambers are overloaded, or the thermostat settings are messed up. Check whether it fits snugly sealing rubber along the entire perimeter, and make sure that the back wall is not blocked by food, which interferes with air circulation.
In models with a system No Frost clogging the drain hole or failure of the fan is a common problem. If you have a classic drip system, pay attention to the operation of the compressor: it should turn on with a characteristic hum and work cyclically. Failure to start or, conversely, continuous operation of the motor without cooling indicates more serious problems with the refrigerant or thermostat.
⚠️ Attention: If you smell a strong smell of burnt wiring or see sparking in the compressor area, immediately stop trying to turn on the device and contact a professional.
To accurately determine the nature of the malfunction, it is useful to know the main symptoms that indicate specific components:
- 🔇 The compressor hums, but does not start - the problem is in the start relay or the wedge of the piston group.
- ❄️ The refrigerator works constantly without turning off - the thermostat is faulty or there is a freon leak.
- 💧 A formation has formed on the floor under the refrigerator puddle - the drainage is clogged or the evaporator tray is damaged.
- 🔊 A loud knock or vibration appears - the motor mount has become loose or the shock absorbers need to be replaced.
A correct diagnosis is half of a successful repair. Do not rush to disassemble the unit completely until you have localized the troubleshooting area.
Problems with starting the compressor and starting relay
One of the most common causes of refrigerator failure Atlant is a malfunction of the starting relay. This small element is responsible for providing an impulse to start the motor windings. If the relay is “stuck” or burnt out, the compressor will either not start at all, or will make a click and hum for a few seconds, and then turn off due to thermal protection.
To check the relay, you need to remove the back cover at the bottom of the refrigerator (crankcase) and carefully remove the rectangular or cylindrical element placed on the compressor rod. Shake it next to your ear: if a rattling sound is heard inside, it means the core is broken and is required relay replacement. This is a consumable material that can be easily found in spare parts stores according to the markings indicated on the case.
If the relay is working properly, but the engine still does not start, the problem may lie in the compressor itself. It is almost impossible to eliminate the interturn short circuit of the windings or the mechanical wedge of the piston group on your own. In such cases, complex repairs using special equipment or a complete replacement of the unit are required.
The process of replacing the start relay is as follows:
- Disconnect the refrigerator from the power supply.
- Remove the protective casing from the compressor.
- Take a photo of the wiring diagram (or remember their location).
- Remove the old relay and install a new one, observing the orientation (the “UP” arrow should face up).
- Fix the wires and check the operation of the device.
Often after replacing the relay, the refrigerator begins to operate normally. However, if the new element also quickly fails, this is a signal of problems with the motor itself or power surges in the network.
☑️ Checking the start relay
Malfunctions of the thermostat and defrost system
The thermostat (thermostat) is the “brain” that commands the compressor to turn on and off depending on the temperature inside the chambers. If the refrigerator stops turning off or, conversely, does not start at all, this sensor is the first to be suspected. In models Atlant with mechanical control, the thermostat is usually located inside the refrigerator compartment or under a plastic panel.
For diagnostics, you can temporarily close the contacts of the thermostat (if you have skills in working with electrical equipment) or replace it with a known good one. Electronic control modules in more modern models use temperature sensors (thermistors), the resistance of which changes with temperature. Such elements are checked with a multimeter: as the temperature changes, the resistance readings should change smoothly.
In refrigerators with a system No Frost the serviceability of the defrost system is critically important. It consists of a heating element, a timer (or electronic module) and a thermal fuse. If a huge lump of ice grows on the evaporator in the freezer, and the fan does not circulate air, then defrosting is not happening. Ice blocks the channels and the cold stops flowing into the refrigerator compartment.
⚠️ Attention: Never use sharp objects (knife, screwdriver) to chip ice from the evaporator. You can break the freon tubes, which will lead to expensive repairs with refilling the circuit.
Typical symptoms of a malfunction in the defrost system:
- 🧊 A “fur coat” more than 5-7 mm thick freezes in the freezer.
- 🌡️ In the refrigerator the temperature in the chamber is higher than normal, although the compressor is working.
- 💧 Water flows not only into the drainage, but also flows out through the door.
- 🔌 The compressor works at short intervals or constantly.
To eliminate the malfunction, it is often necessary to defrost the refrigerator completely (for 24 hours) and check defrost circuit. If the heating element does not ring or the thermal fuse is broken, they must be replaced. It is also worth checking the defrost timer, which could be stuck in the cooling mode.
How to check the defrost heating element?
To check the heating element, you need to ring it with a multimeter in resistance measurement mode. A working heating element should show a resistance in the range from 200 to 500 Ohms (the value depends on the power of the specific model). If the device shows infinity (break) or zero (short circuit), the heating element must be replaced.
Replacing the seal and eliminating leaks
A tight fit of the door is the key to efficient operation of the refrigerator. If the rubber seal (cuff) has lost elasticity, deformed or become dirty, warm air enters the chamber. The compressor tries to compensate for heat loss and works without stopping, which leads to increased energy consumption and wear of parts.
Before buying a new tape, try restoring the old one. Thorough washing with soapy water and treatment with glycerin often helps. If the seal has simply jumped out of the groove, you can carefully set it in with a flat screwdriver, after heating it with a hairdryer to make it elastic. In case of severe deformation (waves, creases), it is recommended replacing the seal entirely.
The process of replacing the cuff on the refrigerator Atlant usually does not require special glue. The seal is attached either in a special groove in the door or pressed against a plastic strip. After removing the old element, degrease the surface and install the new one, starting from the top corner. It is important to straighten all the folds and allow the seal to “get used” to the shape of the door during the day.
Checking the tightness after replacement or cleaning is carried out with a simple test with a sheet of paper. Clamp the sheet with the door around the perimeter: it should be removed with noticeable force. If the paper slides freely, then there is a leak in this place that needs to be eliminated by adjusting the hinges or reinstalling the cuff.
Eliminating noise, vibration and extraneous sounds
Noisy operation of the refrigerator Atlant can be annoying, especially if the unit is located on kitchen-living room. A loud hum, rattling or knocking noise often indicates mechanical problems. First of all, check the installation: the refrigerator must be strictly horizontal. Height adjustment is made by the front legs, and control is carried out by the building level.
If the installation is correct, the source of noise may be inside the compressor crankcase. Loose motor, tray or tube bolts cause severe vibration. Also, over time, the rubber shock absorbers on which the compressor is suspended wear out. Replacing these rubber bands is a simple operation that significantly reduces the noise level and prevents vibration from damaging the copper tubes.
The whistling or hissing sound is often produced by the refrigerant itself circulating through the system, which is the norm. However, if the sound becomes metallic or there is a knocking noise when starting, this may indicate wear on the internal parts of the compressor. In this case, unfortunately, only replacing the motor will help.
Main sources of noise and methods for eliminating them:
- 🔩 Rattling of the rear wall - tighten the fastening bolts of the compressor and condenser.
- 📢 Humming fan (No Frost) - clean the blades ice or lubricate/replace the bearing.
- 🛏️ Vibration of the housing - check if the tubes are touching each other or the housing, bend them.
- 🗣️ Clicks during operation - the normal sound of the thermostat or relay, if they are not too frequent.
Table of typical faults and solution methods
For ease of diagnosis, we have systematized the main problems in the table. Use it as a cheat sheet when searching for the cause of your refrigerator breakdown Atlant.
| Symptom | Probable cause | Solution method | Difficulty |
|---|---|---|---|
| The compressor does not turn on, there is no light | No power, the socket or cord is faulty | Check the voltage in the network, replace the cord | Low |
| The engine hums, but does not start | Faulty starting relay or compressor wedge | Replace the relay, check the windings | Medium |
| The refrigerator does not turn off | Thermostat is faulty or there is a leak freon | Replacing the thermostat, looking for leaks | High |
| There is water on the floor in the chamber | Clogged drain hole | Clean the drainage with a brush or wire | Low |
| Strong ice in the freezer | Failure of the defrost system (No Frost) | Check the heating element, timer, defrost sensor | Average |
This table covers the most common cases. Remember that a combination of several symptoms may indicate a complex problem.
Frequently asked questions (FAQ)
Why does the Atlant refrigerator take a long time to gain temperature after defrosting?
This is normal. After complete defrosting, the refrigerator requires 2 to 6 hours to return to operating mode. If the temperature does not drop for more than 10 hours, there may be a freon leak when the ice chips or the thermostat has failed.
Is it possible to replace the compressor on the Atlant refrigerator yourself?
Theoretically it is possible, but this requires special equipment: a vacuum pump, a pressure gauge station and a supply of freon. In addition, soldering of copper tubes with a torch is necessary. Without experience and tools, such a replacement is impossible; it is better to call a specialist.
What does the blinking temperature indicator on the display mean?
In modern models Atlant with electronic control, the blinking of the indicator signals an increase in the temperature in the chamber above the permissible norm. This may be a consequence of prolonged defrosting, a loose door, or a malfunction of the sensor.
How often do you need to defrost the Atlant refrigerator?
Models with manual defrosting require disconnecting from the network 1-2 times a year when ice forms. The Low Frost i No Frost systems do not require scheduled defrosting, but preventive cleaning of the chambers is recommended once every 6 months.