Correct temperature setting is the foundation on which the durability of your refrigeration equipment and food safety are built. Owners of domestic brand equipment Pozis often face the need for manual calibration, since many models are not equipped with an electronic display that accurately displays degrees. Understanding the principles of operation of the thermostat will allow you to avoid food spoilage and unnecessary energy consumption.
The main task of the user is to balance the operation of the compressor. Temperature is too low leads to freezing of the back wall and drying out of food, while insufficient cold provokes the growth of bacteria. In this article, we will analyze in detail the mechanics of adjustment, the features of various models and answer frequently asked questions that arise during operation.
It is worth noting that even in modern conditions, the household appliance market dictates its own rules, and manufacturers can change control interfaces.
Therefore, it is always useful to check your actions with the official instructions that come with the kit, especially if you are faced with a new modification of the usual model.Thermostat device in Pozis refrigerators
Most models of refrigerators Pozis, especially the classic series RDS or RK, are equipped with a mechanical thermostat. This device is a sensor that responds to changes in temperature inside the refrigerator compartment and closes or opens the electrical circuit of the compressor. The regulator usually looks like a rotary knob with numbers or divisions, located inside the chamber or on the front panel.
The principle of operation is based on the expansion and contraction of the sensing element (bellows) under the influence of heat. When you turn the knob, you change the tension of the spring, which requires a greater or lesser change in the volume of gas in the bellows to turn on the motor. The numbers on the regulator do not mean degrees Celsius, they indicate the conditional cooling power.
- 🔹 Minimum value (0 or Min) - the compressor practically does not turn on, cooling minimal.
- 🔹 Average values (2-4) —standard operating mode that maintains an optimal microclimate.
- 🔹 Maximum value (Max or 7) —the motor runs almost without interruption, trying to achieve extremely low temperatures.
It is important to understand that a mechanical regulator is not a precise device, but rather a “rough” setting.
The interpretation of these numbers depends on the external temperature in the room and the load on the refrigerator with food.Optimal temperature conditions for different chambers
To maintain the freshness of products, it is necessary to maintain strictly defined temperature ranges. In the refrigerator compartment, values from +2 to +5 degrees Celsius are considered ideal. It is within these limits that the development of pathogenic microflora slows down, but the water in the products does not freeze. In the freezer, the temperature should not be higher than -18 degrees, which guarantees long-term storage of meat and fish.
Setting up refrigerators Pozis with a system No Frost or a drip system (“Crying Evaporator”) has its own nuances. In drip models, the cold is distributed unevenly: it is always colder at the back wall than at the door. Therefore, the regulator is set to a position where the temperature at the wall is about 0...+2°C, and in the center of the chamber - +4...+5°C.
⚠️ Attention: Do not try to set the regulator to maximum immediately after loading a large amount of warm products. This will cause the compressor to wear out without being able to shut down. Allow the products to cool gradually.
Below is a table of correspondence between the approximate values of the regulator and temperature modes for standard room temperature (+20...+22°C):
| Position of the regulator | Temperature in the fridge compartment | Compressor operating mode | Recommended use |
|---|---|---|---|
| 1 (Min) | +6...+8°C | Rare starts | Storage of drinks, vegetables in a cool room |
| 2-3 | +4...+5°C | Normal cycle | Daily storage of food (norm) |
| 4-5 | +1...+3°C | Frequent switching on | Hot summer, full load of food |
| 6-7 (Max) | 0...+1°C | Continuous operation | "Super Freeze" mode (short-term) |
Step-by-step instructions: how to set the temperature
The process of setting the temperature in the refrigerator Pozis does not require special tools, but requires a sequence of actions and patience. The thermostat does not respond instantly: after each turn of the knob, several hours must pass for the temperature inside to stabilize.
First determine the current position of the regulator. If the refrigerator is working normally, but you need to increase or decrease the cold a little, change the position of the knob by only one division.
☑️ Setting the temperature
For accurate diagnosis, use an external thermometer placed in a glass of water on the middle shelf. This is the only way to know the real temperature, since the built-in indicators (if there are any) often show only the operating status, and not the degrees. Take readings throughout the day, opening the door only to record the data.
If, after adjustment, the compressor does not turn off for more than 2-3 hours in a row, and the temperature drops below 0 degrees, immediately reduce the value on the regulator. And vice versa, if the motor is silent for too long and the food begins to deteriorate, add power.
Why can’t you turn the regulator often?
Frequent and sudden changes in settings upset the thermal balance. The compressor and refrigerant must operate in a stable rhythm; sharp jumps in temperature requirements reduce the life of the motor.
Seasonal adjustment and external factors
The ambient temperature directly affects the efficiency of the refrigerator. In summer, when the apartment is hot, heat flow through the walls of the unit increases. The compressor has to work harder to maintain the set mode. During such periods, it is recommended to shift the regulator by one division in the direction of increasing power (for example, from 3 to 4).
In winter, the situation is the opposite. If the refrigerator is located in an unheated room or next to a window where the temperature drops below +16 degrees, the standard setting may cause the motor to stop turning on altogether. This is due to the design of the thermostat: it may not have enough external heat to “warm up” the sensor and start the cycle.
- 🌡️ Summer mode: Increase the cooling power, keep the condenser clean at the back.
- ❄️ Winter mode: Reduce power, make sure the refrigerator is not standing on draft.
- 🏠 Location: Do not place the unit closer than 10 cm to the wall and away from the radiator or stove.
⚠️ Attention: Operation of the refrigerator at ambient temperatures below +10°C (for single compressor models) may cause malfunction. Under such conditions, the oil in the compressor thickens, and the refrigerant does not circulate correctly.
Features of models with electronic control
Modern lines Pozissuch as the series Smart or models with index FK, can be equipped with electronic control panels. Here, the temperature is adjusted by selecting an exact numerical value in degrees Celsius. Typically, this is done using touch buttons or mechanical keys next to the display.
Changing parameters on an electronic scoreboard usually requires pressing and holding the settings button (often indicated by a thermometer symbol) for 3-5 seconds until the numbers begin to flash. After this, use the “+” or “-” buttons to set the desired value.
Electronics allows you to set the temperature with an accuracy of 1 degree, which cannot be done mechanically regulator.Such models often have a “Vacation” or “Eco” function, which automatically switches the refrigerator to an economical mode with a temperature of about +15°C in the refrigerator compartment (the freezer continues to operate). This is convenient for long-term absence of owners, as it prevents the appearance of mold when the doors are closed.
Diagnosis of problems: when adjustment does not help
There are situations when turning the regulator knob or changing the numbers on the display does not give any result. If the compressor hums constantly, but there is no cold, or, conversely, there is silence for days, the problem may lie deeper than a simple setting. Thermostat malfunction is one of the most common reasons: its sensitive element could lose its seal and the gas has evaporated.
Other A common problem is a refrigerant (freon) leak. In this case, the compressor may work non-stop, trying to catch up with the temperature, but there will be no cold. It is also worth checking the rubber seals on the doors: if they do not fit tightly, warm air enters the chamber, and no regulator will cope with the heat influx.
If you notice the following signs, temperature adjustment is useless and you need to call a specialist:
- 🔊 The compressor operates continuously for more than 24 hours without shutdown.
- 💧 A puddle appeared on the floor under the refrigerator, and inside there was a “coat” of ice.
- 🧊 In the freezer, food is defrosted, although the motor is running.
- 🔥 The side walls of the refrigerator remain cold when the motor is running (normally they should warm up).
Why does the temperature not recover for a long time after defrosting?
After complete defrosting, a lot of moisture and warm air remain inside the refrigerator. Metal walls and food require time (up to 24 hours) to cool to the specified values. During this period, the compressor works more intensely than usual.
Is it possible to use a Pozis refrigerator in winter in an unheated country house?
Technically, it can be started, but manufacturers do not recommend operation at temperatures below +10°C. This can lead to thickening of the oil in the compressor and disruption of refrigerant circulation, which can lead to motor breakdown.
What does a flashing temperature indicator mean?
Flashing usually signals an alarming condition: the temperature in the chamber is higher than normal. This may be due to recent loading of food, a door that is not closed properly, or a problem with the cooling system. Check the tightness and settings.
How often should you check the thermostat settings?
It is enough to check the relevance of the settings when changing the season (summer/winter) or after general cleaning and defrosting. The rest of the time, if the refrigerator is operating normally, there is no need to interfere with its settings.