A modern kitchen is unthinkable without a reliable assistant that preserves food freshness. The brand Beko has established itself as a manufacturer of affordable and technologically advanced equipment, which is found in many homes. Understanding exactly how your unit functions will help you avoid common operating mistakes and extend its service life.
The operation of any refrigeration equipment, including Beko models, is based on the physical process of extracting heat from the internal chamber and releasing it into the environment. This is not magic, but a clear thermodynamic cycle in which the refrigerant changes its state of aggregation. The key element here is the compressor, which is often called the heart of the system.
Unlike older models, modern Beko devices are equipped with inverter motors and systems ventilation No Frost, which makes their operation quieter and more efficient. Let us analyze in detail what processes occur inside the case after you close the door.
The basics of the refrigeration cycle and the role of the compressor
The operation of the refrigerator begins with turning on the compressor. Beko models often use both classic piston and more modern inverter engines. Inverter technology allows the motor not to shut down completely, but only reduce speed, maintaining the set temperature with minimal energy consumption.
The compressor compresses the gaseous refrigerant (freon), turning it into a hot liquid under high pressure. This heated gas is then sent to a condenser, a grill on the back of the device. This is where heat is transferred into the room, so the back of the refrigerator is always warm.
⚠️ Attention: If you feel that the back wall or side panels of the Beko refrigerator are very hot (up to 50-60 degrees) in the first hours after turning on or defrosting, this is normal operation of the system, and not a breakdown.
After passing through the condenser and heat loss, the refrigerant turns into a liquid state and enters the capillary tube. Here the pressure drops sharply, and the liquid enters the evaporator, where it begins to actively boil at a low temperature, absorbing heat from the refrigerator chambers.
No Frost defrosting system in Beko technology
One of the most popular functions in Beko refrigerators is the system No Frost (or Low Frost in some budget series). It eliminates the need for the user to manually remove ice. The principle of operation is based on forced circulation of cold air inside the chambers.
A fan located in the freezer compartment drives air through a hidden evaporator. There the air is cooled and dried, as moisture settles on the walls of the evaporator in the form of frost. Then dry and cold air is distributed over the shelves through special channels.
Periodically, based on a signal from a timer or sensor, the heating element (heating element) is turned on. It melts accumulated frost on the evaporator. The resulting water flows into a special pan located above the compressor, where it safely evaporates.
It is important to understand that even in No Frost systems, ice formation is possible if the door seal is broken. Seal It should fit tightly around the entire perimeter. If the rubber band is dirty or damaged, moist air from the room will constantly get inside, overloading the moisture removal system.
Temperature control and electronics
Modern Beko refrigerators are controlled by an electronic module that receives data from temperature sensors. These sensors are located in different zones: in the freezer, in the refrigerator compartment, on the evaporator and sometimes in the freshness zone.
The user sets the desired temperature through the control panel. The electronics compares the sensor readings with the set values and makes a decision to turn on or off the compressor, fan or defrost heating element. Some models have a function Eco Modethat optimizes operating cycles to save energy.
| Storage area | Optimal temperature | Beko function |
|---|---|---|
| Freezer compartment | -18°C and below | Fast Freeze |
| Main chamber | +3...+5°C | Active Fresh Blue Light |
| Zero Zone | 0...+2°C | EverFresh+ |
| Door shelves | +5...+8°C | Door Cooling+ |
If the electronics detect a temperature deviation, it can extend the operation of the compressor or, conversely, stop it. In models with a Wi-Fi module (HomeWhiz), temperature data can be transmitted to a smartphone, allowing you to monitor the condition of products remotely.
What is Blue Light in Beko refrigerators?
Active Fresh Blue Light technology imitates natural sunlight using blue spectrum LEDs. This helps photosynthesis continue even inside a closed chamber, preserving the vitamins and freshness of vegetables and fruits longer than under normal conditions.
The location of the sensors and their effect on the operation
The accuracy of the refrigerator directly depends on the serviceability of the sensors. In Beko technology, the most common ones are thermistors - elements whose resistance changes depending on temperature. They are located at strategically important points.
The sensor in the freezer monitors the overall temperature. A defrost sensor (often there are two of them: one controls the start of heating, the other controls the end) prevents overheating of the plastic parts of the evaporator. If one of them fails, the refrigerator may either stop freezing or become covered in ice.
When replacing or checking sensors, it is important to consider their rated resistance at a certain temperature (usually 25°C). Faulty sensor can send false signals to the control board, causing the compressor to work non-stop, which leads to overheating and increased noise.
⚠️ Attention: When diagnosing electronics, always unplug the refrigerator. An attempt to test the sensors with a multimeter under voltage is guaranteed to burn out the control board.
Typical problems and their connection with the device
Understanding the device helps to quickly diagnose problems. For example, if the refrigerator hums but does not freeze, there may be an open circuit in the compressor or a freon leak. If you hear the cracking of ice, this is normal for defrost cycles.
A common problem in models with No Frost is a clogged drainage channel. Water from melted ice does not go into the pan, but accumulates at the bottom of the freezer or flows out under the refrigerator. This is not a breakdown of the mechanism, but a maintenance issue.
Users may also experience uneven cooling. In Beko refrigerators with Multi Air Flow system, cold air is supplied through several levels. If you close all the ventilation holes with food, the circulation will be disrupted and the upper part of the chamber will become warmer.
☑️ Diagnosis of poor cooling
Energy efficiency and extending service life
Energy consumption class indicated on sticker (usually A+ or higher in new Beko models), depends on the quality of the insulation and the efficiency of the compressor. In order for the equipment to operate in the stated mode, you must follow the installation rules.
Do not place hot foods inside. This causes the compressor to work harder trying to compensate for the sudden temperature rise. It is also not recommended to leave the door open often and for a long time, especially in a hot room.
Regular cleaning of the condenser from dust (from the back or bottom, depending on the model) improves heat transfer. A radiator clogged with dust forces the system to work longer to achieve the same temperature, which increases electricity consumption and wear of parts.
Why does a Beko refrigerator make clicking noises?
Clicks are most often produced by the thermostat or compressor start relay when turned on and off. The plastic of the housing may also click when expanding or contracting due to temperature changes during defrost cycles. This is normal.
How often does No Frost need to be defrosted?
The No Frost system does not require manual defrosting to remove ice. However, once every 6-12 months it is recommended to completely defrost and wash the chambers with the power turned off for hygiene and cleaning hard-to-reach places from bacteria.
Is it possible to transport a Beko refrigerator lying down?
The manufacturer categorically does not recommend transporting equipment lying down. Oil from the compressor may leak into the refrigerant circuit, causing water hammer on first start-up. If transportation lying down is unavoidable, let the refrigerator stand upright for at least 24 hours before turning it on.
What to do if the alarm indicator is on?
A flashing indicator usually signals that the temperature in the chamber has risen above the permissible level. Check if the door is closed tightly and if you have loaded a lot of warm food. If after several hours of operation the signal does not disappear, diagnostics of the sensors may be required.