The efficiency of refrigeration equipment directly depends on correctly set cooling parameters. For owners of equipment Indesit (formerly known as Ariston), it is critically important to understand what temperature conditions are the reference for maintaining the quality of products. Incorrect settings can lead to either rapid spoilage of supplies or excessive energy consumption.
Modern models are equipped with electronic control systems that allow precise calibration of the climate inside the chambers. However, even with automation, the user must know basic physical standards in order to notice a malfunction of the unit in time. In this material we will analyze in detail the standards for freezer compartments and methods for their correction.
The stability of the microclimate is the key to food safety. If you notice that the ice in the chamber has begun to melt or, conversely, that a crust is too thick, this is the first signal to action. Let's figure out what values are considered normal for different types of freezing.
Standard temperature conditions of freezers
The main task of the freezer compartment is deep freezing and long-term storage of products at negative values. According to international standards, the optimal storage temperature for most household models is minus 18 degrees Celsius. It is at this indicator that the biochemical processes in products stop, which allows them to preserve their properties for up to 12 months.
However, not all operating modes are the same. Many refrigerators Ariston have the “Super Freeze” function, which temporarily lowers the temperature to minus 24 degrees. This is necessary to quickly process fresh food so that ice crystals inside the cells are minimal and do not destroy the structure of the food. After activating the mode, the system automatically returns to the standard minus 18 degrees.
It is important to distinguish between storage zones. In the upper part of the chamber, especially in models without a system No Frost, the temperature may be slightly higher, about minus 12–14 degrees. The lower part, near the compressor or evaporator, is coldest. Therefore, the distribution of products on shelves is important for their safety.
⚠️ Attention: Long-term storage of products at temperatures above minus 12 degrees is not recommended, as this shortens their shelf life and can lead to the growth of bacteria after defrosting.
Factors influencing the microclimate inside the chamber
The stability of cold is influenced by many external and internal factors. One of the key parameters is chamber loading. An empty freezer loses cold faster when the door is opened, as air circulates more actively. On the contrary, tightly packed shelves (especially if there are already frozen products there) work as a cold accumulator, stabilizing the mode.
The frequency of door opening also plays a role. Each opening forces warm air out of the room, causing the compressor to work harder. If the room is hot (for example, in the kitchen +28 degrees in summer), the load on the system increases, and achieving the specified parameters may take longer.
The technical condition of the seal is another critical point. The rubber gasket around the perimeter of the door should fit snugly against the body. If it is worn out, dirty or damaged, warm air is constantly sucked in. As a result, snow coatis formed on the walls, and the temperature rises above normal.
Indesit and other brands use different refrigerants (freon R600a or R134a), the efficiency of which also depends on the health of the heat removal system. If the condenser at the back of the refrigerator is clogged with dust, heat transfer is disrupted and the freezer stops freezing properly.
How to check the door tightness?
Take a sheet of paper, clamp it with the refrigerator door and try to pull it out. If the sheet is pulled out too easily without resistance around the entire perimeter, the seal may require replacement or adjustment of the hinges.
Temperature adjustment: mechanics and electronics
The adjustment method depends on the series of your refrigerator. In older or budget models, mechanical thermostatis used. This is usually a round knob inside the refrigerator compartment or on the body, with divisions from 1 to 5 (or 7). It is important to understand: the number does not indicate degrees, but the power of the compressor. Position “1” is the minimum cooling, “5” or “MAX” is the maximum.
In models with electronic control, the setting is carried out through a panel on the door or a hidden display. Here you can see the exact numbers. To change the mode, you usually need to press and hold the setting button for a few seconds until the indicators start flashing, and then use the “+” and “-” buttons to set the desired value. The standard factory setting is often set to minus 18 or minus 20 degrees.
You should not unnecessarily set the regulator to maximum. Operating in the “Super Freeze” mode constantly (if it is not automatic) leads to accelerated wear of the compressor and excessive consumption of electricity. It is optimal to keep average values that provide stable cold without extreme loads.
If you change the settings, give the system time. The compressor may take 4 to 12 hours to stabilize the climate after adjustment. Do not check the result immediately after turning it on.
☑️ Checking the mode settings
Comparison of temperature zones in different models
Different lines of refrigerators Ariston may have different thermal insulation characteristics and compressor power. Below is a table showing typical temperature ranges for various classes of equipment.
| Model type | Standard mode (°C) | Super Freeze mode (°C) | Cold retention time (hours) |
|---|---|---|---|
| Budget (mechanical) | -18... -20 | No (up to -24 manually) | Up to 9 hours |
| Middle class (No Frost) | -18 | Up to -24 (auto) | Up to 13 hours |
| Premium (Multi-Airflow) | -18... -19 | Up to -26 | Up to 15 hours |
| Chest freezers | -20... -22 | Up to -26 | Up to 24 hours |
As can be seen from the table, more modern systems are able to retain cold longer during a power outage due to improved insulation. However, the basic storage temperature remains the same for all household appliances - minus 18 degrees.
Critical: If your refrigerator shows a temperature above minus 12 degrees for a long time, this may indicate a refrigerant leak or a faulty sensor.
Diagnosing problems with cooling
If you have set the correct settings, but the food still spoils or melts, you need to carry out diagnostics. The first sign of a malfunction is often warm back wall or the complete absence of cold. In models with manual defrosting, a sign of a problem may be a layer of ice more than 5-7 mm thick.
Noisy operation of the compressor or its constant operation without shutting off also indicates that the system cannot reach the set temperature. This may be caused by a clogged capillary tube, a fan malfunction (in No Frost systems) or a thermostat failure.
Sometimes the problem lies not in the refrigerator itself, but in the operating conditions. If the unit is placed close to the wall, air circulation around the radiator is disrupted. It is necessary to provide a gap of at least 5-10 cm from the back wall to the furniture.
⚠️ Attention: If you hear relay clicks when starting, but the compressor does not turn on or hums for several seconds and goes silent, immediately disconnect the device from the network. This is a sign of problems with the starting relay or jamming of the compressor.
Features of operation in winter
In winter, the load on refrigeration equipment changes. If the refrigerator is placed on an unheated veranda or in a garage where the temperature drops below +10 degrees, it may stop turning on. This is due to the fact that the thermostat “thinks” that the cold has already been reached, since the room is cold.
In addition, if there are sudden temperature changes during transportation (for example, buying in winter), you cannot turn on the device immediately. The condensate inside the compressor should evaporate and the oil should return to working condition. It is recommended to keep the equipment in a warm room in a vertical position for at least 4-6 hours (preferably 24 hours).
During the cold season, it is also worth checking the operation of the condensate drainage system. If the drainage hole freezes, water may get on the food or freeze inside the case, creating an extra load.
Frequently asked questions (FAQ)
Why does ice freeze in the Ariston freezer, although it is set to No Frost?
The system No Frost does not mean a complete absence of moisture. Ice can form due to a loose door, damaged seal, or clogged melt water drainage channel. It is also possible that the defrost cycle may be disrupted (the defrosting heating element or timer is faulty).
Is it possible to store food at -10 degrees?
Short-term - yes. However, for long-term storage (months), the temperature should not exceed -18°C. At -10°C, shelf life is reduced significantly, and some bacteria may remain active. This is only permissible in the “short-term storage” mode.
How to reset the temperature settings to factory settings?
In most models Indesit/Ariston a complete reset of the settings is carried out by a long (10-15 seconds) press of the button combination or through the service mode menu. However, the easiest way is to disconnect the refrigerator from the network for 10-15 minutes - this will reboot the electronic module, returning the basic parameters.
Is it dangerous if the temperature briefly rises to -12°C?
If this happened once and quickly recovered (for example, when loading a large volume of products), there is no danger. Modern products can withstand such fluctuations. The only danger is staying in the “defrosting” zone for a long time (above -6...-8°C).