How to properly defrost a two-chamber Atlant refrigerator

Modern two-chamber models Atlant, even equipped with the system No Frost, require periodic maintenance, including complete disconnection from the network. Despite marketing statements that the equipment “does not require defrosting,” the manufacturer’s technical regulations require this procedure to be carried out to extend the life of the compressor and maintain hygiene standards. Over time, internal air ducts and hidden evaporators become overgrown with a microscopic layer of ice, which reduces the efficiency of heat transfer.

The defrosting process (as defrosting is technically correctly called) is necessary not only to remove visible snow, but also to reset errors in the electronic control unit. Many owners ignore this recommendation, which leads to increased energy consumption and the appearance of extraneous noise during operation of the unit. Understanding the physics of the process helps to avoid typical mistakes, such as using a hairdryer or sharp objects to chip ice.

In this article we will analyze in detail the algorithm of actions for models with a drip system and system No Frost, determine the optimal frequency of procedures and consider the nuances of caring for seals and drainage holes during equipment downtime.

When defrosting is necessary: signs and frequency

The frequency of the procedure directly depends on the type of cooling system installed and the intensity of use of the refrigerator. For models with manual defrosting or a drip system in the freezer (Direct Cool), the interval is once every 4-6 months. If you notice that the layer of frost on the back wall of the freezer exceeds 5–7 millimeters, this is a direct signal to action.

Systems No Frost in refrigerators Atlant are equipped with automatic defrost timers, but they do not guarantee a complete absence of ice in hard-to-reach places. The air ducts can become clogged with ice chips, which turn into a monolithic piece of ice that blocks the circulation of cold air. In such cases, defrosting is required upon the appearance of the following symptoms:

• ❄️ A noticeable decrease in the efficiency of freezing food, despite the standard settings of the thermostat.
• 🔊 The appearance of humming or gurgling immediately after the compressor stops, which indicates problems with the outlet condensation.
• 💧 Formation of puddles under the refrigerator or inside the lower section, indicating a clogged drainage channel.

Ignoring these signs leads to the fact that compressor begins to work non-stop, trying to compensate for the loss of cold. This critically increases the load on the start relay and can lead to costly repairs. Regular maintenance allows you to maintain the service life of the equipment declared by the manufacturer.

Preparatory stage before disconnecting

High-quality defrosting begins long before you unplug the cord from the outlet. The first step is to clear the interior space of food. If it’s winter outside, the contents of the freezer can be temporarily taken out onto the balcony, packed in a thermal box or wrapped in blankets. In the summer, cooler bags with ice are suitable for these purposes.

It is necessary to remove all removable elements: shelves, drawers, egg trays and bottle holders. Plastic parts become brittle at low temperatures, so it is best to wash them separately in warm water and a mild detergent. This is also the ideal time to check the condition of the sealing rubber bands on the doors sealing rubber bands on the doors.

⚠️ Attention: It is strictly forbidden to use sharp metal objects (knives, screwdrivers, chisels) to accelerate the chipping of ice. Damage to the evaporator tubes will lead to an immediate release of refrigerant and will require complex repairs with recharging the system.

Prepare a container to collect water. In two-chamber models Atlant the drainage hole is often located low, and the draining water may not have time to evaporate in the tray above the compressor if the procedure is carried out quickly. Cover the floor around the refrigerator with absorbent rags or towels to avoid damage to the floor covering.

Step-by-step instructions for defrosting

The algorithm of actions for two-chamber refrigerators Atlant requires a consistent approach. First you need to set the thermostat to the “0” or “Off” position, and then disconnect the device from the electrical network. Only after this do the chamber doors open to allow air to enter.

Natural defrosting takes from 10 to 24 hours depending on the thickness of the ice and the room temperature. It is not recommended to force the process to accelerate, since a sharp temperature change can cause deformation of the plastic or microcracks in the evaporator housing. If time is limited, you can place containers with warm (not hot!) water inside the chambers.

During the melting process, it is important to monitor the drainage hole. It often becomes clogged with dirt and food debris, which are washed away by the flow of water. You can clean it using a special brush or soft wire wrapped in cotton wool. After all the ice has melted, you must thoroughly wipe all surfaces with a dry cloth.

The table below shows the approximate defrosting time depending on the conditions:

Care for the No Frost and drip system

Owners of models Atlant with the system No Frost often forget that the evaporator in them is hidden behind a plastic panel on the back wall. Ice forms there during the defrosting process and should drain into the pan. If you hear the sound of water inside the chamber or see ice on the food, it means that the drainage is broken.

When defrosting such models, special attention should be paid to the ventilation holes located between the chambers or on the back wall. They must be carefully cleaned of dust and lint using a vacuum cleaner with a narrow nozzle. Clogged air ducts are the main reason for uneven cooling and the formation of “warm zones.”

The secret to keeping the evaporator clean

To prevent the formation of ice in the No Frost system, you can wipe the visible parts of the fan (if access is available) with a dry cloth. Dust on the blades creates vibration and noise, and also interferes with effective airflow.

The drip system, characteristic of the refrigeration compartment of most two-chamber Atlantovrequires checking the moisture drainage groove. It is located at the bottom of the rear wall. It needs to be wiped with a cotton swab dipped in soda solution to remove mucus and mold, which often become a source of unpleasant odor.

Typical mistakes when defrosting

The most common mistake is using a hair dryer or heater to speed up the melting of ice. A directed jet of hot air creates local overheating of the plastic, which leads to its deformation. Subsequently, the deformed parts may not fit tightly, breaking the seal of the chambers.

The second mistake is turning on the refrigerator immediately after removing the ice. The internal surfaces and, most importantly, the compressor must warm up to room temperature. If you turn on the unit when it is cold, a water hammer may form in the system, since the refrigerant does not have time to transform into a gaseous state in the required volume.

• 🚫 Using chemical solvents or abrasive sponges to clean the internal plastic.
• 🚫 Attempts to pick out ice by holding onto the refrigeration circuit tubes (they burst easily).
• 🚫 Closing the doors during defrosting, which creates the effect of a thermos and delays the process.

⚠️ Attention: Technical characteristics of refrigerants and requirements for oils in compressors may differ in different modifications. Always check the technical sticker inside the refrigerator before any intervention in the system.

Completing the procedure and first start-up

After all surfaces have been wiped dry and the removable elements have been returned to their places, the refrigerator is ready to be turned on. However, there is no need to rush to load products. Let the unit run idle for 2-3 hours. This will allow you to create the required temperature regime and stabilize the operation of the thermostat.

In models with electronic control Control System it may be necessary to reset the settings or calibrate the sensors after a long period of inactivity. Usually this happens automatically, but in some cases you need to manually set the temperature recommended by the manufacturer (usually +4°C for the refrigerator and -18°C for the freezer).

It is better to do the first loading of products in small portions so as not to create a sudden thermal load on the compressor. If after a day of operation you do not observe the formation of an excessive amount of condensation or a repeated rapid increase in ice, then the defrosting and maintenance procedure was successful.

Questions and answers (FAQ)

Is it possible to defrost the Atlant refrigerator on the balcony in winter?

You cannot take the refrigerator out into the cold to defrost. Sudden temperature changes can damage the varnish coating of the case and make the plastic brittle. In addition, the oil in the compressor thickens in cold weather, and starting after such “ventilation” can be dangerous for the engine. You need to defrost in a warm room.

Why does the refrigerator not turn off for a long time after defrosting?

This is normal. After defrosting, the internal volume and walls of the chamber warmed up to room temperature. The compressor takes time (sometimes up to 10–12 hours depending on the load) to cool the entire volume to the specified parameters. If after 24 hours the mode does not stabilize, check the tightness of the door closure.

Does it need to be washed inside the refrigerator every time it defrosts?

It is recommended to carry out general washing with chemicals no more than 1-2 times a year. Each time you defrost, it is enough to wipe the surfaces with a damp cloth and soda solution to remove odors and bacteria. Aggressive detergents can damage the plastic and leave a persistent chemical odor that the products absorb.

What to do if the water does not go into the drainage hole?

It is necessary to clean the drainage channel. Take a soft pipe cleaner or a piece of flexible wire wrapped in cotton wool and carefully go over the hole. You can also pour some warm water into it using a syringe without a needle to break through the thermal blockage. If there is water in the tray under the evaporator, a deeper cleaning of the system may be required.