Owners of household appliances often wonder how exactly their device functions, especially when it comes to such an important process as defrosting. Veko refrigerator has several types of cooling systems, and understanding the principles of their operation will help to significantly extend the period unit services. Modern models of the brand are equipped with advanced technologies that minimize human participation in maintenance.
However, even the most advanced systems require the correct approach to operation and periodic monitoring. In this article, we will analyze in detail how defrosting occurs in different models, what is the difference between technologies and what actions are required from the user. Technical solutionsused by the company's engineers are aimed at creating an ideal microclimate for storing products.
Before delving into technical details, it is worth noting that most modern units of this manufacturers operate in automatic mode. You don't have to wait for the weekend to manually turn off the appliance and wait for the water to drain. Automatic defrosting has become a quality standard that ensures comfortable use.
Principles of operation of the No Frost system in Beko refrigerators
Technology No Frost (no frost) is dominant in the Beko range, especially in refrigerators with a capacity of more than 200 liters. The operating principle is based on forced circulation of air masses inside the chambers. A special fan drives air through the evaporator, where it is cooled and dried, after which it is distributed throughout the entire volume.
The key point that is often overlooked is the cyclical operation of defrosting. Unlike older models, where ice accumulated on the walls, here moisture settles on a hidden evaporator. Defrosting cycle starts automatically by a timer or when a certain thickness of the ice crust is reached on the sensors.
- ❄️ The evaporator is hidden behind the back panel and does not come into direct contact with products.
- 💨 The fan ensures uniform temperature at each point of the chamber.
- ⏱️ The timer initiates heating of the heating element every 8–12 hours of compressor operation.
- 💧 Melt water flows into a special pan, from where it evaporates naturally way.
It is important to understand that the system No Frost does not mean a complete absence of moisture, it only prevents the formation of visible ice on products. The air in these chambers is drier, which may require vegetables and fruits to be packed more tightly to prevent them from drying out.
⚠️ Attention: Never use sharp objects to remove ice from the evaporator once you reach it. Damage to the freon tubes or heating element will lead to expensive repairs that will not be covered by the warranty.
Drip defrosting system: features and care
In refrigeration chambers with Direct Cool (drip system) the process occurs differently. There are no powerful fans driving air, and cooling occurs due to natural convection and contact with the rear wall. Frost periodically forms on the inner wall of the refrigerator compartment.
When the compressor turns off after reaching the set temperature, the wall begins to heat up. The ice crust melts, turning into water, which flows down the groove into the drainage hole. From there, through the tube, the moisture enters the container above the compressor, where it evaporates. This process is called drip defrosting.
It is important for the user to know that in such models the freezer most often requires manual defrosting, unless a separate No Frost system is implemented there. In the refrigerator compartment, human intervention is kept to a minimum, but monitoring the drain hole is necessary.
Combined systems and Dual Cooling technology
Modern models in the mid- and high-price segments are often equipped with a combined system. It works in the freezer No Frost, completely eliminating the formation of ice, and in the refrigerator compartment a drip system or more advanced technology is used Dual Cooling.
Dual Cooling technology implies the presence of two independent cooling circuits. This means that the air from the freezer does not mix with the air of the refrigerator compartment. Separate flows allows you to maintain ideal humidity in the refrigerator (food does not dry out) and low temperature in the freezer (food does not freeze).
In such devices, defrosting occurs fully automatically for both compartments, but mechanically the processes are separated. In the freezer, heating elements thaw the evaporator, and in the refrigerator compartment, moisture simply flows down the back wall during pauses in the compressor operation.
| System type | Refrigerator compartment | Freezer compartment | Participation user |
|---|---|---|---|
| No Frost (Full) | Automatic (fan) | Automatic (fan) | Minimum |
| Direct Cool | Drip (wall) | Manual (usually) | Regular (freezer) |
| Dual Cooling | Autonomous system | Autonomous system | Absent |
| Low Frost | Drip | Accelerated manual | Rare (1-2 times a year) |
Low Frost technology: balance between systems
The technology deserves special attention Low Frost, which is often found in budget and mid-range Beko models. This is not complete No Frost, but not classic manual defrosting either. The design of the evaporator here has been changed: it is located along the perimeter of the chambers, hidden under plastic.
Thanks to this design and the special coating of the internal walls, the ice does not freeze into a dense crust. It is formed in the form of a thin, easily removable layer. Low Frost defrosting It is required much less frequently - usually 1-2 times a year, and takes only a few minutes.
When defrosting, water does not flow out automatically, as in a drip system, so the chamber will need to be wiped with a rag. However, the absence of complex fans and air channels makes these models quieter and more energy efficient.
Why is Low Frost better than conventional manual defrosting?
Conventional defrosting requires waiting for the ice to completely melt, which takes hours. Low Frost allows you to remove ice mechanically in 5-10 minutes, since it does not freeze tightly to the walls thanks to the smooth coating.
Manual defrosting algorithm: when necessary
Despite the abundance of automation, situations may arise when manual defrosting is inevitable. This applies to models with mechanical controls, old refrigerators, or situations where the No Frost system has failed and a “fur coat” has formed. Defrosting is also necessary before a long shutdown or general cleaning.
The process must be carried out in stages so as not to damage the internal components. First you need to completely empty the chambers of products. It is better to take them out to the balcony (in winter) or put them in a thermal bag with refrigerants.
☑️ Checklist for proper defrosting
It is strictly forbidden to use hair dryers, hot water or scrapers to speed up the process. A sudden temperature change can lead to cracks in the plastic box or damage to the evaporator tubes. Natural melting is the safest, albeit time-consuming method.
⚠️ Attention: If you use a hair dryer, hot air can melt plastic door seals or damage temperature sensors, which will lead to to incorrect operation of the thermostat in the future.
Frequent problems and their solutions during defrosting
Sometimes users are faced with a situation where the refrigerator seems to be defrosting incorrectly. For example, water flows onto the floor, or ice does not melt even after a long shutdown. Most often, the problem lies in a clogged drainage hole.
In a drip system and No Frost, water should go into the drainage. If this does not happen, it overflows over the edge of the groove and ends up on the floor or in vegetable drawers. For cleaning, you can use a special soft brush or a piece of flexible wire with a melted end.
Another common problem is a malfunction of the defrost sensor or heating element in No Frost systems. If you see that the back wall of the freezer is completely clogged with ice, and the fan is humming or standing still, this is a signal that the automatic defrosting system is broken.
Critical important: If an ice plug has formed at the exit of the drainage tube, the water may freeze inside the channel. In this case, defrosting must be carried out with the door open for at least 24 hours so that the ice inside the case has completely melted.It is also worth checking the tightness of the sealing rubber. If the door does not close tightly, warm, moist air constantly enters the chamber, which instantly turns into frost. The defrosting system simply does not have time to cope with such a volume of moisture.
What to do if the refrigerator does not turn on after defrosting?
Wait 3-4 hours. After a long defrosting, the sensors and thermostat should return to normal. If during this time the compressor does not start, check the integrity of the cord and the presence of voltage in the socket.
Is it necessary to defrost a Beko refrigerator with No Frost?
In normal mode - no. The system removes moisture itself. However, once every year or two it is recommended to carry out preventive defrosting and washing for hygiene and checking the operation of the drainage.
Why does ice freeze in the freezer if there is No Frost?
Possible reasons: a door that is not tightly closed, damage to the seal, a clogged drainage hole or failure of the defrost element. Diagnostics is required.
How often do you need to defrost a refrigerator with Low Frost?
Low Frost technology involves the formation of a minimum amount of ice. It is recommended to defrost 1-2 times a year or when a layer of frost becomes noticeable (more than 3-5 mm).
Is it possible to speed up defrosting with hot water?
No, you cannot pour boiling water or very hot water on the plastic and the evaporator. This may cause materials to deform and damage the refrigerant. Use only room temperature.
Where does the water go after defrosting in No Frost?
The water flows into a tray located above the compressor (at the bottom rear of the refrigerator). From the heat of a running motor, it evaporates into the atmosphere, so there is no need to drain it manually.