No frost system in refrigerators what does it mean

No Frost or drip system: which refrigerator to choose?

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Today’s refrigerators, no matter how they work, are high-tech appliances that we use every day. It is important that they meet all the needs: preserving the quality of the food, requiring a minimum of electricity and remaining functional for as long as possible. Let’s find out below what is better: drip system or No Frost.

Possible breakdowns

Masters encounter several typical malfunctions when servicing models with No Frost technology. Here is a description of the causes and possible solutions.

The fan doesn’t work

The fan is a key part of the No Frost system, which makes defrosting unnecessary. Fan stoppage can be caused by frozen blades. Snow crust on the blades interferes with the movement, as a consequence, the fridge or freezer compartments stop cooling foodstuffs at the same level.

Freezing of the blades can be caused by moisture accumulated over the years, a dirty drain hole for escaping thawed water, or a refrigerant leak. The refrigerator needs to be defrosted for twenty-four or ten hours. If the blades do not move after defrosting, then the fan is out of order and needs to be replaced. A service center will be needed.

Difference Between no Frost and Defrost

Faulty relay, timer and sensor

The malfunction of these devices manifests itself in a similar way. The evaporator begins to build up ice and frost, which reduces the cooling capacity and causes the temperature in the chambers to rise. The part that caused the cataclysm must be found and replaced. It is necessary to call a specialist, who will diagnose the device and find out the reason.

Another sign of the presence of defects. constantly running fan. This is because the evaporator, covered with frost and ice, freezes and prevents proper air circulation. The fan starts spinning to lower the temperature in the compartment. Continuous operation of the blades can be caused by a broken sensor, which receives false temperature data and forces the motor to run without pauses.

How does a Refrigerator work?

Refrigerator with No Frost or Total No Frost system

Total No Frost refrigerators do not require defrosting of the freezer compartment, and limit the formation of mold or unpleasant odors inside the refrigerator thanks to a system consisting of one motor, one evaporator, a ventilation and air cleaning device that prevents the formation of frost, as if inhaling the vapor produced by the food.

Refrigerators with the No Frost system work on the principle of dry cooling, which can lead to the “drying out” of fresh food, such as vegetables: before putting the vegetables in the refrigerator, it is recommended to wrap them in plastic film.


As we have already said, defrosting the refrigerator or freezer with the NO-ICE system is automatic. Modern models have “electronic intelligence” so that the appliances themselves adjust the temperature and, if necessary, control frost and ice buildup during operation.

In ATLANT freezers and refrigerators with the NO Frost system, on the back wall there is an evaporator with a heating element, thanks to which the defrosting takes place. To prevent the accumulation of moisture and ice in the refrigerator or freezer compartment, the control module activates a defrosting process every 8 hours to ensure that the refrigerators and freezers are free from ice and frost. The frost turns into water and flows down along the special channels into the vessel for collecting the thawing water, located on the compressor, on the back wall of the refrigerator, on the external side. The heat generated by the compressor during operation promotes evaporation of the liquid.

Do I have to defrost my fridge with the No Frost system??

In contrast to appliances with a drip-free refrigeration system, there is no formation of ice on the walls of the freezer because all the moisture is retained in the evaporator. It also cools and dehumidifies the air with the help of a blower fan that blows air around the evaporator thus removing the excess moisture. The treated air is then blown into the chamber via special ducts using the same blower. This ensures a constant circulation and the functionality of the No Frost system.

This design feature prevents formation of frost and ice on the walls of the chamber and makes it possible to eliminate the need to defrost the refrigerator or freezer. One cannot say that there is no frost at all, but it only appears in the enclosure in the evaporator area above the freezing chamber, in the area of the rear or side walls.

Frost is periodically removed when the compressor is switched off, when the heater starts to work, which melts the ice. The water formed is drained into a collection tank through special troughs, where it quickly evaporates. That is why a No Frost refrigerator provides long-term storage and is very easy to maintain. Though the fridge does not need to be defrosted, but it is necessary to clean and wash periodically the inside of the shelves under the running water or you will get the unpleasant smell and the bonuses in the form of bacteria.

Low Frost or No Frost Refrigerators. How it works and what can go wrong

No Frost. is a system of refrigerators and freezers that triggers the process of cold air circulation and minimizes the appearance of ice on the walls. The term in English translates to “frost-free”. This is the main difference between the capsule system and the no frost system: it prevents formation of snow.

This technology distributes air evenly throughout the refrigerated compartment. It eliminates the formation of zones with temperature differences, where moisture freezes and condenses. Frosting in no-frost systems occurs but is very rare and outside the chambers, and can be eliminated by the owner. The no-frost refrigerators not only protect the food from freezing, but also relieve the owner from additional cleaning of the device.

Difference between Frost Free vs Non Frost Free Freezer

Low Frost or No Frost, which is better??

Sometimes refrigerators are positioned as Low Frost, Defrost, Superfrost. What it is? The inscription means, the system is advanced. What is the difference between Low Frost and the No Frost system described above? Let’s find out.

How dry sublimation works, without formation of frost on the walls, which means No Frost, is clear. The system makes it possible to forget about major cleaning in the refrigerating chamber for up to one year. Thanks to the fact that the refrigerator is equipped with No Frost system, there will be no long defrosting with unloading of food on the table. That means it’s easier to maintain.

The feature of dry air and ventilation is that it draws moisture out of the products. If the No Frost refrigerator has the contents in airtight containers. Fan creates extra noise, electricity bill costs go up.

Frost Free, Total No Frost and Low Frost. what is the difference??

The new generation cooling and defrosting systems have also undergone refinements that have allowed for the development of improved versions that are actively used in the production of modern refrigeration equipment. Beforehand you should get acquainted with the demanded technologies that will allow you to choose the refrigerator with the best value for money and quality ratio that can satisfy the operational needs of each customer.

To see the and model range, go to the catalog of refrigerators store QwertyShop with a warehouse in Odessa and delivery in Ukraine. In it the wide assortment of production from budgetary variants up to the units stuffed on the last word of technology is given.

Low Frost Technology

Low Frost. use of special evaporator placed behind the inner walls of the freezer. The technology makes it possible to achieve:

  • maintaining the temperature and humidity at the same level throughout the entire volume of the chamber;
  • Forming a thin layer of ice that can be easily cleaned by hand;
  • The technology makes it possible to achieve the following: The technology allows us to reduce the cost of refrigerators with this technology;
  • Elimination of some disadvantages of the classic freezer compartment cooling technology, where a lot of ice is formed and it is necessary to perform regular defrosting.

Frost Free system

If you see a Frost Free item in your refrigerator’s description, it means:

  • Using the No Frost functionality in the freezer compartment only;
  • The fridge compartment follows the classic drip-free principle and requires manual defrosting;
  • Reduce the cost, energy consumption and noise level of such a refrigerator, as opposed to a classic No Frost solution.

Total No Frost and Full No Frost

Total No Frost and Full No Frost have the same functionality and allow:

  • To use the No Frost functionality in both the fridge and freezer compartments;
  • The freezer compartment defrosts automatically, and the unpleasant odors and mold formation are prevented by a special technical system;
  • quickly set the desired cooling temperature. Some manufacturers offer individual settings for each cell.

Advantages and disadvantages of the Zero Frost system

The advantages of the No Frost system

Refrigerators with this system are the leaders on the market today. There are several reasons for this:

No sudden temperature fluctuations. Because the air in the refrigerator compartment circulates regularly, temperature fluctuations caused by opening and closing the door are evened out;

Instant freezing” function. This function implies rapid freezing of food at temperatures of the order of.20°С. Fast freezing avoids that food freezes too quickly and that there is no ice crust on the surface of the food;

Long-term preservation of food. Due to the reduced humidity, bacteria in refrigerators with the “no frost” system multiply much slower. This results in more favorable conditions for long-term food preservation in the cell.

Disadvantages of the No Frost system

Despite all the cleverness of the technology, it has several disadvantages:

On models with the no-frost system, foods may dry out a little faster. The situation will be saved by sealed dishes and film for storing food;

The evaporator mechanism occupies a considerable volume of the refrigerating chamber, and therefore the capacity of such refrigerators may be slightly lower than that of similar drip-type models;

Some users are convinced that such refrigerators consume more energy and are noisy. Contrary to popular belief, these nuances depend only on the technical characteristics of the refrigerator and can be inherent even in drip-type models.

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