Modern household appliances produced by a Turkish company Vestelare deservedly popular due to their reliability and functionality. Understanding exactly how your refrigerator functions allows you not only to operate the unit carefully, but also to promptly diagnose faults before they lead to food spoilage. The operating principle of these devices is based on the classical laws of thermodynamics, but has its own engineering features.
It is based on a continuous refrigerant circulation cycle, which takes heat from the internal chamber and releases it to the external environment. This process occurs automatically and continuously as long as the device is connected to the power supply. The key element The entire system is a compressor, which is often called the “heart” of the refrigerator, providing the necessary pressure for the movement of freon through the tubes.
It is important to note that the efficiency of operation directly depends on the tightness of the circuit and the quality of thermal insulation walls Models with the system No Frost add another level of complexity associated with forced air circulation and periodic automatic defrosting of the evaporator. We will analyze each component in detail so that you can better navigate the structure of your equipment.
The role of the compressor and the movement of the refrigerant
The compressor in refrigerators Vestel performs the function of a pump that compresses the gaseous refrigerant, increasing its temperature and pressure. After compression, the freon is pushed into the condenser, located, as a rule, on the rear wall of the housing. This is where the first stage of heat exchange occurs, when the hot gas gives off heat to the surrounding air, gradually cooling and turning into liquid.
⚠️ Attention: If you hear a loud knocking or humming immediately after turning on, this may indicate that the compressor is overloaded. Do not ignore extraneous sounds, as they may indicate wear and tear on the internal parts of the engine.
Next, the liquid refrigerant passes through a filter drier, where residual moisture and possible contaminants are removed from it. This is a critical step, since the presence of water in the system can lead to the formation of ice plugs in the narrow channels of the capillary tube. After cleaning, the flow is directed to the evaporator, where a sharp expansion of the gas occurs.
At the moment of expansion, the refrigerant boils at very low temperatures, actively absorbing heat from the internal space of the chambers. This physical process provides the cold that we feel when we open the door. The cycle closes when gaseous freon returns to the compressor again, and the process repeats again.
Technical details of the motor operation
Modern Vestel models often use inverter compressors, which do not turn off completely, but only reduce the speed. This allows you to maintain the temperature more accurately and reduces the noise level compared to classic models operating in start-stop mode.
No Frost cooling system and its features
Many users choose equipment Vestel precisely for the presence of a system No Frostthat eliminates the need to manually defrost the refrigerator. In such models, the evaporator is hidden behind the back wall of the freezer, and food is cooled by circulating cold air. A special fan drives air masses through the evaporator, where they are cooled, and then distributes them throughout the entire volume of the chambers.
The main advantage of this scheme is the uniform distribution of temperature and the absence of ice on products and shelves. The humidity in the chambers is maintained at an optimal level, which prevents food from drying out. However, the system requires periodic defrosting of the hidden evaporator itself so that it does not become overgrown with ice and stops passing air.
For this, the refrigerator is equipped with a timer or an electronic control unit that periodically starts the defrost mode. At this moment, the compressor and fan are turned off, and a special heating element (heating element) located next to the evaporator is turned on. Melt water flows into the drain pan and evaporates naturally.
Temperature control: thermostats and sensors
A thermostat or an electronic control board with sensors is responsible for maintaining the set temperature in refrigerators. Vestel Mechanical models use a thermostat that physically opens the electrical circuit when a certain temperature is reached. You can adjust this threshold using a rotary knob located inside the chamber.
In more advanced models with electronic control (Electronic Control), the process is monitored by thermistors - resistance sensors that transmit data to the electronic board. The system analyzes the readings and makes a decision to turn the compressor on or off, as well as to start the fans. This allows you to achieve high accuracy, down to a degree.
If the refrigerator stops freezing or, conversely, begins to freeze food, the problem often lies in the sensors or thermostat settings. Incorrect readings may occur due to oxidation of contacts or displacement of the sensing element.
Air circulation pattern and zoning
Effective storage of products depends on the correct organization of air flows inside the chambers. In refrigerators Vestel with a system Multi Air Flow cold air is supplied through several openings located at different levels. This creates a uniform temperature background, eliminating the formation of “warm zones” in the corners.
In the freezer, the flow is usually directed from top to bottom or distributed along the rear wall. In the refrigerator compartment, air can be supplied through special channels in the shelves or through holes in the rear panel. It is important not to block these openings with products, otherwise circulation will be disrupted and cooling efficiency will drop.
Zoning the space also plays a role: on the upper shelves the temperature is usually slightly higher than on the lower ones. Therefore, it is better to place perishable foods such as meat and fish on the lower levels, and drinks and ready-made meals on the upper levels. Door shelves are the warmest place suitable for sauces and canned goods.
| Storage area | Temperature range | Recommended products |
|---|---|---|
| Top shelves | +4...+6°C | Ready food, drinks, dairy products |
| Lower shelves | +2...+4°C | Raw meat, fish, semi-finished products |
| Vegetable box | +5...+8°C | Fruits, vegetables, herbs (high humidity) |
| Door shelves | +6...+10°C | Sauces, eggs, canned food, drinks |
Typical malfunctions and their causes
Despite the reliability of the brand Vestel, technical problems may arise over time. One of the most common causes of failure is a refrigerant leak. If you notice that the compressor runs constantly without turning off, and no cold is generated, most likely the tightness of the circuit is broken.
Another common problem is the failure of the system fan No Frost. If it stops turning, the air stops circulating, and an ice coat forms in the freezer, and it becomes warm in the refrigerator compartment. This can be determined by the absence of fan noise when the compressor is running.
- ❄️ Ice buildup: indicates problems with the defrost system or a loose door fit.
- 🔊 Extraordinary noise: can be caused by vibration of the tubes, fan malfunction or compressor wear.
- 💡 Alarm indicator is on: signals that the temperature inside the chambers is above the permissible limit.
⚠️ Attention: Self-repair of the cooling system requires special tools and a license to work with freon. An attempt to solder the tubes without evacuation of the system will lead to repeated breakdown in a short time.
Operating rules for extending service life
In order for the refrigerator Vestel to serve you for many years, you must follow a number of simple operating rules. First of all, this concerns the placement of the unit. Do not install the equipment close to a wall or furniture, as the condenser requires free air flow to effectively remove heat.
Regular cleaning of the drainage hole in the refrigerator compartment will help prevent water from appearing at the bottom. A clog in this channel is a common cause of puddles under vegetable drawers. You can clean it using a special flexible brush or a cotton swab.
☑️ Monthly maintenance of the refrigerator
It is also important to keep the rubber seals on the doors clean. If they are contaminated with grease or food debris, the door will not close properly, causing warm air to constantly blow in and ice to form. Wipe them with a soft cloth and soapy water.
Why does the Vestel refrigerator hum loudly when turned on?
Humming when starting compressor - this is a normal phenomenon associated with the creation of the necessary pressure in the system. However, if the sound is too loud, check to see if the tubes are touching the cabinet or walls. Also, the noise level may depend on the levelness of the installation: adjust the legs so that the refrigerator stands stable.
How often do you need to defrost a model with No Frost?
Technically, the system No Frost does not require manual defrosting, since it occurs automatically. However, manufacturers recommend completely unplugging the device at least once a year, washing it and letting it dry. This will help remove odors and carry out hygienic treatment of hard-to-reach places.
What to do if there is an unpleasant odor inside?
The source of the odor can be spoiled food or contaminated drainage. Remove all products, wash the shelves and walls with a soda solution. Be sure to check and clean the drain hole. To eliminate odors, you can use activated carbon or special odor absorbers.