Owners of modern household appliances often wonder about the need and duration of the defrosting procedure, especially when it comes to models with the No Frost system. Brand refrigerators Atlantequipped with this technology do indeed require significantly less attention than their predecessors with a crying evaporator, but maintenance cannot be completely ignored. Many users mistakenly believe that the word “No Frost” (without frost) means “never defrost at all,” but this misconception can lead to a decrease in the efficiency of the compressor and the appearance of unpleasant odors.
In fact, the process of “defrosting” in such units is more correctly called preventive cleaning and rebooting the system, since ice freezes on does not occur on the chamber walls. Full defrost required to remove dust from the heat exchanger, clean drainage channels and update the air mass inside the chambers. The time you will have to spend on this procedure depends on many factors: ambient temperature, the thickness of the air cushion in the compressor (if your model has one) and the degree of contamination of the internal systems.
On average, for a full defrosting cycle and subsequent start-up of the refrigerator Atlant No Frost will require from 12 to 24 hours, although active human participation is required for only a small portion of this time. If you plan to simply turn off the device at night, this may not be enough to completely evaporate moisture from hard-to-reach areas, especially in winter. Understanding the physical processes occurring inside the chamber during downtime will help you plan a maintenance schedule so as not to be left without food and not damage the equipment.
Why does the Atlant No Frost refrigerator need defrosting
The system No Frost implies the circulation of dry cold air, which prevents moisture from settling on food and walls in the form of ice. However, condensate formed during operation of the system still accumulates in a special tray and evaporates. Over time, microparticles of food, mold or mucus can accumulate in the drainage system, which, without periodic flushing, will lead to a blockage. That is why technical defrosting is necessary primarily for hygiene and cleaning of water drainage channels.
In addition, even in systems with forced air circulation, the formation of local ice in hidden cavities is possible if the door does not fit tightly or the products are packaged in open containers with water. Ice can block the operation of fan or the damper that regulates the air flow between the freezer and refrigerator compartments. If you notice that the refrigerator has started to work louder or to hold the temperature worse, this is a sure sign that the system needs rest and removal of excess moisture.
⚠️ Attention: Do not use sharp objects or a hair dryer to speed up defrosting in No Frost models. The thin evaporator tubes in these models are often located very close to the plastic panels, and the risk of damaging the cooling system or melting the plastic is extremely high.
Regular maintenance will also extend the life of the compressor. When the heat exchanger is clean and free of excess moisture and dirt, heat transfer occurs more efficiently, and the motor does not have to work in increased mode. Many service engineers recommend performing this procedure at least once a year, even if there is no visible ice. This allows you to reset the errors of the electronic control module and check the operation of all systems in normal mode after switching on.
Factors influencing the duration of the process
The time required for defrost the Atlant refrigeratoris not a fixed value and depends on a number of variables. The first and most obvious factor is the room temperature. In summer, at high ambient temperatures, ice and condensation evaporate faster, but the cooling process itself will take longer after switching on. In winter, on the contrary, the moisture may freeze out longer, but the unit will also gain cold more actively.
The design features of a particular model also play a role. In two-chamber models with one compressor and Full No Frost air distribution system, the defrosting process is more uniform. If you have a model with a drip system in the refrigerator compartment and No Frost in the freezer, then the time to defrost the refrigerator compartment may be less, but the general procedure requires thorough drying of both zones. The volume of the chambers directly affects the amount of air that needs to be cooled after switching on.
An important aspect is the presence or absence of defrost heating elements (heating elements) in the evaporator area. In models Atlant they can operate in automatic mode, but when completely defrosted, it is important for us that all moisture melts, including that which could flow into the insulation. If the refrigerator was used for a long time without interruptions, the thermal insulation could become saturated with moisture, and it would take longer to dry than indicated in the standard instructions.
Step-by-step instructions: how to defrost correctly
The procedure should begin with preparation: empty the chambers of food by removing all shelves and drawers. This will not only free up space for air circulation, but will also allow you to thoroughly wash the insides of the unit. Disconnect the appliance from the power supply by unplugging the plug from the socket and open the doors wide open. If your model has a valve for keeping cold, it is better to close it so that the heat does not flow too intensely, although this is not critical during complete defrosting.
Next, it is necessary to ensure the outflow of melt water. Unlike older models, in No Frost water often leaves through the drainage hole, but if there is a lot of melting, it may not be able to handle it. Place absorbent rags or towels on the bottom of the lower compartment and freezer. Do not leave the process unattended in the first hours so that water does not flow onto the floor and damage the flooring or furniture.
☑️ Checklist for preparing for defrosting
After the main ice has melted and the water has drained, it is necessary to thoroughly rinse all surfaces. Use a warm soda solution or a special refrigerator cleaner. Pay special attention drainage hole: it can be carefully cleaned with a cotton swab or a special brush to prevent blockages in the future. After washing, all surfaces need to be wiped dry.
How long does complete defrosting take?
The answer to the question “how long to defrost” depends on what we consider the end of the process. Active melting of residual ice and condensation usually takes from 4 to 8 hours. However, it takes significantly longer for the internal channels, evaporator and seals to dry completely. Experts recommend leaving the refrigerator turned off for at least 12 hours, and ideally for a full day.
If you hurry and turn on the appliance 2-3 hours after the visible ice has melted, moisture may remain inside, which, when frozen, will turn into an ice crust on parts that are not visible eye. This is especially true in the area behind the back of the freezer where the evaporator is located. Insufficient drying can lead to the fact that after a week of operation you will again hear the fan noise or notice snow in the chamber.
| Process stage | Time (minimum) | Time (optimal) | Note |
|---|---|---|---|
| Melting of visible ice | 2 hours | 4-5 hours | Depends on the temperature in the room |
| Drying the drainage | 2 hours | 4 hours | The water must completely evaporate |
| Drying of the seals | 1 hour | 2 hours | Be sure to wipe dry |
| Total downtime | 8 hours | 24 hours | To ensure the system is dry |
It is important to consider that after turning on the refrigerator will also need time to reach operating temperature. It usually takes 2 to 4 hours before you can load your products. Thus, it is better to plan the full cycle of “turning off - maintenance - turning on - cooling” on the weekend so as not to risk the safety of supplies.
What to do after defrosting: starting and checking
Before plugging Atlant into the network, make sure that all removable elements (shelves, drawers, shelves on the door) are completely dried and installed in place. Check that the doors close tightly and are not distorted. Plug in the appliance, but do not load any food yet. Let it run idle for at least 2 hours so that the refrigerant is distributed throughout the system and the thermostat registers that the desired temperature has been reached.
In the first hours of operation, listen to the sounds made by the refrigerator. No Frost system may make specific sounds: cracking of plastic (thermal expansion), noise flowing water (refrigerant circulation or defrost), fan hum. If you hear a loud knocking, grinding or vibration that was not there before, perhaps some element was touched during cleaning or a foreign object got into the drainage.
Is it normal for the refrigerator to heat up on the sides?
Yes, modern models have condensation grilles are often built into the side walls. During active operation after defrosting, they can heat up to 50-60 degrees, which is the norm for heat removal.
Only after the temperature indicator (if there is one) shows a green light or sufficient time has passed for cooling, you can add food. Do not load the unit with a large amount of warm food at once - this will put extra stress on the compressor, which has just come out of idle mode. Fill the chambers gradually.
Typical mistakes when servicing No Frost
One of the most common mistakes is trying to speed up the process with a hairdryer or hot water. In models Atlant plastic parts are made of materials that can be deformed due to sudden temperature changes. A hot stream of air can melt thin evaporator tubes or damage sensor wiring, which will lead to expensive repairs.
Another mistake is ignoring the back wall. Many users wash only visible surfaces, forgetting that dirt and mold can also accumulate behind the plastic panel in the freezer. You should only remove this panel yourself if you are confident in your abilities and know how to properly install it back without damaging the fasteners. Otherwise, it is better to limit yourself to thoroughly blowing out the accessible holes.
⚠️ Attention: If you decide to remove the back panel in the freezer to clean the evaporator, proceed with extreme caution. Fastenings are often made of fragile plastic, which becomes brittle in the cold. Allow the chamber to completely warm up to room temperature before dismantling.
Also, do not use aggressive chemicals, bleach or abrasive sponges. They can damage the antibacterial coating of the inner walls and leave scratches in which bacteria will multiply at double speed. For disinfection a vinegar solution or special wipes for household appliances is sufficient.
Frequent questions and answers (FAQ)
Is it possible to defrost an Atlant No Frost refrigerator in winter by opening the window?
Technically it is possible, but not recommended. A sudden influx of cold air can cause condensation on internal parts, which then freezes, creating a crust of ice. In addition, a draft does not contribute to uniform drying of hard-to-reach places. It is better to do this at room temperature.
Do you need to lubricate the seals with oil after defrosting?
Yes, this is a useful procedure. Rubber seals can dry out over time. Wiping them with silicone grease or glycerin after washing and drying will prolong their elasticity and ensure a tight fit of the door, which is critical for the No Frost system.
What to do if the refrigerator does not turn on after defrosting?
Check for voltage in the socket. If the electricity is fine, the thermostat protection may have tripped or there may have been a power surge. Let the device stand turned off for another 30-60 minutes and try again. If it doesn’t help, call a specialist.
How often do you need to defrost Atlant with No Frost?
The optimal frequency is once a year. If you notice a decrease in efficiency, the appearance of odor or ice, the procedure can be performed unscheduled. It doesn’t make sense to do this more often than once every six months if the equipment is working properly.
Is it possible to wash a refrigerator with tap water?
For rinsing removable shelves and drawers - yes. It is better to wipe the internal surfaces with a well-wrung out cloth so that excess moisture does not get into the technical openings and electrical contacts. Avoid direct contact of a jet of water inside the case.