Double-chamber refrigerators brands Position have earned a reputation for reliable and unpretentious units, however, even the highest quality equipment requires proper initial setup for effective operation. Incorrect adjustment of the thermostat often leads to food freezing in the refrigerator compartment and melting in the freezer, or the compressor running non-stop, consuming excess electricity. Understanding the principles of operation of the thermostat and knowledge of the features of your model will help you avoid these problems without calling a specialist.
The setup process depends on the type of control installed by the manufacturer: mechanical or electronic. Most budget and mid-range models Pozis use a classic rotary control, while more modern lines can be equipped with a digital display. It is critical to consider that complete temperature stabilization after adjustment takes from 2 to 6 hours, so you should not turn the handle again after 10 minutes. In this article we will look at all the nuances so that you can set the ideal climate for your products.
Features of the Pozis refrigerator cooling system
Refrigerators Position are most often equipped with a classic heat removal system with one compressor, which serves both compartments at once. Thermoregulator in such models it is usually installed in the refrigerator compartment and controls the temperature there, while the freezer compartment is cooled according to the residual principle. This means that by lowering the temperature in the main compartment, you automatically freeze food more strongly in the freezer, and vice versa.
Intensity of work compressor directly depends on the position of the thermostat knob and the external ambient temperature environment. In the summer, when the room is hot, the unit has to work longer to maintain the set parameters, so in winter and summer the settings may differ.
Some models, especially with a system No Frost or “crying” wall, have automatic defrosting cycles, which also affect the temperature regime. In such systems, sensors independently monitor ice formation and trigger heating of the evaporator, which can briefly increase the temperature inside the chamber. The user does not need to interfere with this process, but should be aware of its existence so as not to panic during temporary fluctuations.
- ❄️ Single compressor circuit means that the setting is made by one regulator for both chambers.
- 🌡️ The temperature sensor responds to the heat coming from the products and from the outside through seals.
- ⚙️ The system can have mechanical or electronic control depending on the series.
⚠️ Attention: If you hear a loud click and hum, and the cold does not appear within a day after switching on, the problem may not be in the settings, but in a freon leak or a compressor malfunction.
Mechanical adjustment of the thermostat
In classic models Position, such as the RK, RD or F series, control is carried out using a rotary knob located inside the refrigerator compartment or on the front panel. The adjustment scale usually has divisions from 1 to 5 (or from Min to Max), where the number does not indicate degrees Celsius, but the intensity of the compressor. The higher the selected value, the colder it will be inside the chambers, and the longer the motor will work.
The factory setting, as a rule, corresponds to the average value, for example, number 3 or 4 on the scale. This is the optimal mode for most household situations when the door is not opened too often and the room is maintained at standard room temperature. If you set the regulator to maximum (5 or Max), the compressor will work almost non-stop, which will lead to freezing of food and increased energy consumption.
For precise adjustments, it is recommended to use an external thermometer placed in a glass of water on the middle shelf. Turn the control knob smoothly, pausing between changes in position, as the inertia of the system is high. Abrupt mode switching creates an extra load on starting relay and can shorten the service life of the equipment.
The correct position of the handle allows the compressor to rest approximately 30-40% of the total operating time. If you notice that the unit turns on too often or, conversely, is silent for a long time, and the food spoils, you need to adjust the position of the regulator towards decreasing or increasing power accordingly.
Setting up electronic panels and displays
Modern two-chamber refrigerators Posis premium class can be equipped with an electronic control module with digital display that allows you to set the exact temperature in degrees. In such models, settings are made by pressing the buttons Temp or the up/down arrows on the outer panel of the case. Digital control eliminates the human factor and allows you to maintain the climate with an accuracy of 0.5 degrees.
The optimal temperature for the refrigerator compartment is considered to be from +3 to +5 °C, and for the freezer - from -18 to -24 °C. The electronics itself controls the cycles of turning the compressor on and off, as well as the operation of the fans (if the system is provided No Frost). The user only needs to set the desired values once, and the system will independently maintain them, compensating for opening the door or loading warm products.
Some models with electronics have a “Super Freeze” or “Vacation” mode, which changes the standard operating algorithm. Activating these functions through the menu Mode or a special button allows you to quickly freeze a large volume of food or, conversely, minimize energy consumption by leaving only the freezer working. Do not forget to turn off these modes after use so as not to overload the system.
- 🔢 The digital value on the display shows the current or set temperature in degrees.
- 🔔 A sound signal often notifies you about a long door open or a sensor malfunction.
- 🔄 Reset settings to factory settings is possible by holding the button combination for a long time.
⚠️ Attention: During voltage surges in the electrical network, the electronic control unit may go astray or fail. It is recommended to use a surge protector or stabilizer to protect expensive electronics.
Seasonal temperature adjustment
External temperature has a direct impact on the efficiency of refrigeration equipment, so manufacturers recommend changing the thermostat settings depending on the time of year. In winter, when the room is cool, heat loss from the refrigerator is reduced and the compressor takes less time to maintain the cold. If you leave the summer settings, the unit may not turn on at all or operate in too short cycles, which is harmful for the motor.
In summer, the situation is the opposite: high ambient temperature forces more heat to penetrate through the walls of the housing, requiring more intensive operation of the cooling system. On hot days, it is recommended to shift the regulator towards lower temperatures (higher numbers on the scale), but not to set it to maximum in order to prevent continuous operation. Condenserlocated at the back should be able to effectively transfer heat to the environment.
Particular attention should be paid to installing the refrigerator in unheated rooms or in the kitchen with a gas stove. If the room temperature drops below +10 °C or rises above +30 °C, the standard adjustment may not cope. In such extreme conditions, even a correctly configured one thermostat does not guarantee the safety of food, and it is better to move the equipment to a more suitable place.
Check the condition of the door seals when changing seasons: in winter the rubber can harden and fit worse, and in summer it can soften. Pressing the door tightly is the key to ensuring that the set temperature will remain stable, regardless of the weather outside.
Diagnostics of temperature problems
If, after adjusting the thermostat, the temperature in the chambers does not change or changes too sharply, this may indicate a malfunction of the system components. A common problem is the failure of the thermostat itself: its contacts may stick, or the capillary tube of the temperature-sensitive element may lose its seal. In this case, the refrigerator either does not turn on at all or works non-stop, turning the chamber into a glacier.
Another common reason for incorrect temperature conditions is a clogged capillary tube or a refrigerant leak. If you hear the compressor humming but no cold, or it turns on for a couple of seconds and immediately turns off with a click, adjusting the thermostat knob will not help. Professional diagnostics are required using a manifold to check the pressure in the circuit.
It is also worth checking the defrosting system if we are talking about models with No Frost. If the defrost heating element or timer is faulty, the evaporator becomes covered with a “fur coat” that blocks the circulation of cold air. As a result, it becomes warm in the refrigerator compartment, and in the freezer the temperature may be normal or also elevated, despite the correct position of the regulator.
| Symptom | Possible cause | Action |
|---|---|---|
| Food freezes at the back walls | The thermostat is set to maximum or is faulty | Reduce power, check the thermostat |
| The chamber is warm, the compressor is silent | Thermostat failure or freon leak | Call a technician for diagnostics |
| The compressor works without interruption | Loss of tightness or wear of the seal | Check the door fit, look for leaks |
| Heavy ice in freezer | Malfunction of the defrost system | Defrost manually, check the heating element |
How to check the thermostat yourself?
Disconnect the refrigerator from the mains, remove the regulator handle and the plastic cover. Carefully remove the thermostat. Close the two wires going to it by twisting (after insulating the rest). Turn on the refrigerator. If it starts working and starts to cool, the thermostat is faulty and needs to be replaced. If not, the problem is deeper (compressor, starting, freon).
Operating rules for stable cold
In order for the set temperature to remain stable, it is important to follow the rules for loading the refrigerator. Do not place hot food inside the chamber: this causes a sharp rise in temperature and causes the compressor to wear out. In addition, warm steam condenses and turns into ice, which disrupts heat transfer and can lead to mechanical damage to the shelves or housing.
Air exchange inside the chambers is a key factor in uniform cooling. Do not fill the refrigerator to capacity with food and do not block the ventilation openings (if there are any, especially in models with No Frost). Cold air must circulate freely around the food, otherwise some corners of the chamber will be warm and others too cold.
Regularly check the cleanliness of the condenser grille at the back of the refrigerator. Dust and pet hair clinging to the black tubes act as a thermal insulator, preventing heat dissipation. This tricks the system into thinking it's not cold enough inside and increasing its output, throwing off your settings. It is enough to vacuum the back wall once every six months.
☑️ Checking the efficiency of the refrigerator
Following these simple operating rules will prolong the life of your Pozisu and ensure ideal storage conditions for products. Remember that equipment lasts longer when it operates in normal mode without constant overloads caused by incorrect settings or violation of operating conditions.
Frequently asked questions (FAQ)
What position of the thermostat knob is considered normal for a Pozis refrigerator?
The normal position is one in which the compressor works approximately 30-40% of the time (for example, 10 minutes working, 20 minutes resting). This is usually the middle of the scale (numbers 2-3 on a five-step regulator or 3-4 on a seven-step). The exact value depends on the room temperature and the amount of food.
Why do vegetables freeze at the back wall in the Posis refrigerator?
This happens if the thermostat is set to too low a temperature (maximum power) or if the regulator is faulty and does not turn off the compressor in time. The cause may also be insufficient sealing of the door, which allows moist air to enter inside, which condenses and freezes. Try reducing the power and checking the seal.
Is it possible to regulate the temperature in the freezer separately from the refrigerator compartment in Pozis?
In most models Posis with one compressor and mechanical control, there is no separate adjustment. The temperature in the freezer depends on the settings of the main chamber. If the freezer is not cold enough, you need to increase the cooling in the main compartment (increase the number on the regulator), but make sure that the food there does not freeze.
How long does it take the refrigerator to restore the temperature after defrosting?
After complete defrosting and washing the refrigerator Posis it takes from 2 to 6 hours to reach operating temperature. At this time, it is not recommended to load large quantities of products so as not to overload the compressor. Complete stabilization of the mode may take up to a day.
What to do if the refrigerator is humming, but does not get cold after adjustment?
If you changed the settings, more than 5-6 hours passed, and the cold did not appear (the food is warm, the back wall is not cold), there may be a refrigerant leak. or system clogging. The compressor or start relay could also be faulty. In this case, further independent adjustment is useless - you need to call a specialist.