Modern models of the Belarusian manufacturer Atlant with two compressors have earned a reputation as reliable equipment, but even the most advanced systems require regular maintenance. Owners often wonder whether forced defrosting is necessary if technology is working in the chamber No Frost. The answer lies in the nuances of the operation of the evaporator, which, despite automatic defrosting, over time becomes covered with ice due to moisture entering with food.
Ignoring preventive cleaning can lead to a decrease in cooling efficiency and an increase in energy consumption. The two-compressor system is designed so that each circuit operates independently, which imposes its own characteristics on the maintenance procedure. You need to understand the difference between complete defrosting and local cleaning so as not to damage the equipment.
In this guide we will analyze in detail the algorithm of actions for models with the system No Frost and the classic drip system. You'll learn how to safely shut down the unit, how long the process will take, and what tools you'll need. Following the instructions will help extend the service life of compressors and preserve the freshness of products.
Design features of two-compressor Atlant models
Refrigerators Atlantequipped with two motor-compressors are technically complex devices, where each unit is responsible for its own temperature circuit. Typically, one compressor serves the freezer compartment, providing deep freezing, and the second maintains optimal conditions in the refrigerator compartment. This scheme allows you to independently regulate the temperature and defrost the chambers separately, although complete shutdown is still preferable for prevention.
The key element that requires attention is the evaporator hidden behind the plastic panel. In models with a system No Frost air circulates forcibly, and moisture settles on this hidden heat exchanger. If the ice layer on the evaporator becomes too thick, the sensors may not read the temperature correctly, which will lead to frequent starts of the compressor.
It is important to note that the dual-compressor circuit creates a higher vibration load, so you should be especially careful with the tubes when defrosting. Any mechanical impact on the refrigerant circulation system can be fatal. Before starting work, make sure that you understand the structure of your model by reading the technical documentation.
⚠️ Attention: In two-compressor models, the tubes may pass through the entire body. Be extremely careful when clearing space around the unit so as not to pinch or damage the copper lines.
Differences in design may also affect the location of the drainage holes. In some modifications Atlant water is drained through special gutters, which can become clogged if used incorrectly. Understanding these features will help you avoid flooding the kitchen during the procedure.
Preparation for the defrosting procedure
Quality preparation is half the success. Before you begin active actions, you need to empty the cameras of products. Take care in advance about where to put your frozen supplies: use thermos bags, ice packs, or temporarily transfer the food to another refrigerator. Rapid spoilage of food is the main risk that needs to be eliminated.
The next step is to completely disconnect the equipment from the power supply. Unplug the plug from the socket. You should not rely only on the power button, if there is one on the case, since some models Atlant may remain energized in standby mode, which is unsafe when working with water.
- 🧊 Prepare water collection containers (basins, trays) and absorbent materials (towels, rags) in advance.
- 🧹 Find a soft sponge and a neutral detergent for subsequent cleaning of the chambers.
- 🔌 Provide access to the back wall of the refrigerator to check the condition of the condenser.
- 🚫 Remove all sharp objects away so as not to accidentally damage the internal plastic or tubes.
If your refrigerator built into the kitchen unit, it must be pulled out or removed. Defrosting requires access from all sides, especially if you need to move the unit to drain the water. Make sure that the floor under the refrigerator is protected from moisture.
⚠️ Attention: Never use hair dryers, fan heaters or heating devices with an open shade to speed up defrosting. A sudden temperature change can cause cracks in plastic parts and damage the soldering of the evaporator tubes.
Step-by-step instructions: how to defrost a refrigerator
The process of defrosting a refrigerator Atlant with two compressors requires consistency. After unplugging the equipment and removing the products, leave the doors of both chambers open. This will provide an influx of warm air and start the natural process of melting the ice.
The time required for complete defrosting varies from 10 to 24 hours depending on the thickness of the ice crust and the temperature in the room. Do not try to scrape off the ice with a knife or other sharp objects - this is the surest way to break through the evaporator and damage the refrigerator. If you see that the ice is melting too slowly, you can carefully use a plastic spatula, but only after the ice mass begins to move away from the walls on its own.
☑️ Safe defrosting checklist
Pay special attention to collecting water. In models with No Frost water can accumulate in a special tray above the compressor at the back, from where it evaporates naturally. However, when completely defrosted, the volume of water may be too much and it will overflow. Place a tray or wipe the floor frequently.
After all the ice has melted, you need to thoroughly wash the interior surfaces. Use a weak soda solution or a special refrigerator cleaner. This will remove bacteria and unpleasant odors that may have accumulated during operation.
Specifics of defrosting the No Frost system
Owners of models Atlant with the system No Frost often believe that their equipment does not require defrosting at all. This is a misconception. Although the automatic system regularly defrosts the evaporator, over time dirt, mold and grease deposits accumulate in the drainage system, which prevents normal water flow.
If you notice that water or ice appears on the back wall of the refrigerator compartment, this is a signal that the drainage hole is clogged. In two-compressor models, a blockage may occur in the channel connecting the chambers or in the evaporator drain itself. In this case, not just defrosting, but cleaning the drainage is required.
| Symptom | Possible cause | Solution |
|---|---|---|
| Puddle of water at the bottom of the refrigerator compartment | Drainage is clogged hole | Clean with a soft tube or brush |
| Ice on the back wall | Faulty defrost sensor or rare defrosting | Carry out complete defrosting (24 hours) |
| The refrigerator is humming louder than usual | Air circulation is impaired due to ice | Defreeze and check the ventilation ducts |
| Food in the freezer is thawing | Freezing evaporator | Long defrosting until the ice completely disappears |
To clean the drainage, you can use a medical bulb with warm water or a special brush. Carefully insert the tool into the hole and make several rotational movements, then pour water. Make sure that water flows freely into the pan.
Care of compressors and ventilation after defrosting
After defrosting and washing the chambers, do not rush to immediately load the products. The two-compressor system should reach operating mode. Plug in the refrigerator and let it run empty for 2-3 hours. This will stabilize the temperature and make sure there are no leaks or extraneous noise.
At this time, pay attention to the operation of the compressors. Normally, they should be turned on alternately or simultaneously (depending on the operating algorithm of a particular model Atlant), work silently, without strong vibration. If you hear a knocking, clanging, or humming noise that lasts more than 15 minutes without interruption, you may need diagnostics.
It is also important to check the condition of the condenser (the grill at the back of the refrigerator). It must be clean from dust and pet hair. A condenser clogged with dust causes compressors to work with overload, which reduces their service life. Vacuum the back wall if necessary.
⚠️ Attention: Technical characteristics and electronic operating algorithms may vary depending on the year of manufacture and series of the refrigerator. Always check the official instructions for your model to clarify the nuances of the control system.
Typical errors and operating rules
Many users make mistakes that negate all defrosting efforts. The most common of them is loading warm products. By placing hot or warm food in the chambers, you provoke abundant formation of condensation, which instantly turns into ice on the evaporator.
Another mistake is the doors not closing tightly. If the seal (elastic band) is dirty or damaged, warm, moist air constantly enters the chamber. In two-compressor models, this can lead to one of the compressors working almost non-stop, trying to compensate for heat loss.
- ❌ Do not store food in open containers - the liquid will evaporate and settle as ice.
- ❌ Do not leave doors open longer than necessary.
- ❌ Do not ignore the appearance of foreign odors - this is a signal about the need for cleaning.
- ❌ Do not defrost the refrigerator if there are no obvious signs of freezing (for No Frost systems).
Regular care of the seals is also important. Wipe them with a soft cloth and occasionally lubricate them with silicone grease to prevent the rubber from drying out and to ensure a tight seal. This is especially true for models Atlantthat have been in use for several years.
Following simple operating rules will allow you to forget about problems with defrosting for many years. Remember that a two-compressor refrigerator is an investment in food safety, and proper care will pay off with reliable operation of the equipment.
Frequently asked questions (FAQ)
How long does it take to defrost an Atlant refrigerator with two compressors?
For models with a system No Frost 3-5 hours are enough to completely clean the drainage and evaporator. If you have a classic drip system with manual defrosting, the process can take from 10 to 24 hours depending on the thickness of the ice. It is critical to wait until the ice in the hidden cavities completely melts.
Is it possible to defrost only one chamber in a two-compressor refrigerator?
Technically, thanks to two compressors, you can turn off one chamber, leaving the second one working. However, manufacturers Atlant recommend completely defrosting the entire unit at once. This is due to the fact that the cold from the operating chamber can prevent the melting of ice in the adjacent walls, as well as for reasons of saving time.
What to do if the refrigerator does not turn on after defrosting?
In modern electronically controlled models, the protection may work or the controller may fail. Try turning off the power to the refrigerator completely for 15-20 minutes, then turning it on again. If the problem persists, you may need to call a technician to diagnose the thermostat or start relay.
Do you need to lubricate the rubbing parts after defrosting?
You do not need to lubricate the internal mechanisms (compressor, fan) yourself - they are serviced at the factory. The only thing that requires maintenance is the rubber door seal. It can be wiped with a damp cloth and, if necessary, treated with silicone grease for elasticity.
Hidden fact about two-compressor systems
Atlant two-compressor refrigerators often use a common door heating circuit to prevent the formation of condensation outside. When defrosting, make sure that the area where the chambers meet is also dry.