Modern refrigerators have ceased to be just metal boxes for storing food, but have turned into complex climate systems with many modes. Among the variety of buttons and indicators on the control panel, there is often an option Coolmatic, the purpose of which is not always clear at first glance. Users often wonder what exactly is hidden behind this name and why this function is needed in everyday life.
Essentially, this technology is an accelerated cooling or super-freezing mode, which allows you to quickly reduce the temperature in the freezer. This is not just a marketing ploy, but a useful tool for maintaining food freshness during large loads. Understanding the principles of operation of this mode will help you operate the equipment correctly and extend the life of the compressor.
In this article we will look in detail at how it works Coolmaticwhen it really should be turned on, and in which cases it is better to refrain from using it. You will learn about the technical nuances of the process, the impact on energy consumption and receive practical advice on operation.
What is hidden behind the name Coolmatic
The term Coolmatic is most often associated with Bosch brand refrigerators, although similar functions under other names are found from Siemens, AEG and other manufacturers. This is a special mode in which the refrigerator compressor begins to operate in a continuous cycle, ignoring the standard stops provided by the thermostat.
The main purpose of activating this option is to quickly lower the temperature in the freezer compartment to values around -24°C or even lower. During normal operation, the temperature is maintained at -18°C. Such extreme cooling is necessary for the formation of small ice crystals inside the products, which allows them to preserve their structure and taste.
⚠️ Attention: The mode Coolmatic creates an increased load on the compressor. It is not recommended to keep this function turned on constantly unless necessary, as this leads to accelerated wear of parts and an increase in energy bills.
Unlike the standard mode, where the compressor work and rest cycles are strictly regulated electronically to save resources, Coolmatic forces the system to work at the limit of its capabilities. This is similar to the "turbo" mode in a car, which is used for sharp acceleration, rather than for quiet driving around the city.
Operation principle and technical nuances
The mechanism of action of the function Coolmatic is based on changing the compressor control algorithm. In normal mode, temperature sensors detect the achievement of a specified threshold (for example, -18°C) and turn off the motor. When the fast freezing mode is activated, this threshold shifts significantly lower, and the engine operating time increases.
In refrigerators with the system No Frost activation Coolmatic also affects the operation of the fans. They begin to circulate cold air more intensively, ensuring uniform distribution of low temperatures throughout the entire volume of the chamber. This allows you to freeze food not only on the shelves near the evaporator, but also in the center of the chamber.
It is important to understand the difference between Coolmatic and Frostmatic. Although both terms are often used as synonyms for quick freezing, in some models of equipment Frostmatic may refer to preparing an empty chamber for loading, and Coolmatic to maintaining an ultra-low temperature of already loaded products. However, in most modern Bosch models these concepts are combined.
Technical details of the compressor operation
In Coolmatic mode, the compressor operates without shutdown cycles until the temperature reaches extremely low values (usually -24°C). After this, if the function has not been disabled manually, the automation itself can turn off the mode after a certain time (usually 24-50 hours) to prevent breakdown.
The electronic control board monitors the operating time in extreme mode. If you forget to turn off the function, the smart electronics will decide to stop to protect the engine from overheating. However, you should not always rely on this insurance.
When it is necessary to use the fast freezing mode
The use of the function Coolmatic is justified in specific situations when quick intervention in the temperature regime is required. The main task is to cope with a large volume of warm products, which during normal freezing could defrost existing stocks.
Let's consider the main scenarios when activating the mode will be most useful:
- 🍖 Procurement of meat and fish: If you have purchased a large amount of fresh meat, poultry or fish and want to freeze them in portions, this mode will help create an ice crust in a matter of minutes, keeping the juice inside fiber.
- 🍓 Seasonal preparations: When freezing berries, fruits and vegetables in the summer, when the harvest arrives in large volumes, the function allows you to process the gifts of nature without losing vitamins.
- 🎉 Preparation for events: If a party is expected and you need to quickly cool a large number of drinks or desserts, turning on Coolmatic will speed up the process.
- 📦 After defrosting: After manually defrosting the refrigerator and loading the food back, this mode will help quickly return the chamber to operating temperatures.
The mode is also useful if you notice that the temperature in the chamber has risen due to the door being opened for a long time or the seal breaking. A short-term switching on Coolmatic will help correct the situation.
Instructions: how to activate and disable the function
Mode control Coolmatic may vary depending on the model of your refrigerator and the type of control panel. In most cases, the process is intuitive, but knowing the exact sequence of actions will help avoid mistakes.
For mechanical controls or simple electronic panels, the algorithm is usually as follows:
☑️ Activating the Coolmatic mode
B For models with a touch display, such as Bosch Serie 6 or Siemens iQ500, you need to touch the corresponding icon on the screen. The indicator will light up to confirm activation. To disable the mode, you need to repeat the action: press the same button or icon. The indicator will go out and the refrigerator will return to its normal operating algorithm.
In some advanced models with intelligent control (Home Connect), you can activate Coolmatic through an application on your smartphone. This is convenient if you are in another room or want to turn on the freezing remotely before arriving home.
| Action | Indication | Result |
|---|---|---|
| Single press | Flashing indicator | Function selection (in the menu) |
| Long press (3-5 sec) | Constantly lit | Activation of Coolmatic mode |
| Repeat press | The indicator goes out | Deactivation of the mode |
| Automatic shutdown | Flashing before turning off | System protection after 24-50 hours |
Please note that in some models, when turned on Coolmatic the open door sound signal may be temporarily turned off so as not to irritate the user during active loading of products.
Influence on products and preservation of vitamins
The main advantage of use Coolmatic is concluded as a freeze. When food freezes slowly, large ice crystals form inside its cells. These sharp crystals rupture cell walls, resulting in loss of juice, vitamins and changes in texture when defrosted.
When using the fast freezing mode, the water in food crystallizes instantly, forming microscopic, almost invisible crystals. They do not damage the cell structure. As a result, after defrosting, the meat retains its elasticity, and the berries do not turn into porridge.
⚠️ Attention: Do not freeze warm foods in large volumes without a mode Coolmatic. Heat from fresh food can increase the temperature of already frozen stocks, causing them to partially thaw and breed bacteria.
This mode is especially critical for products with a high water content: watermelons, cucumbers, soft cheeses. Without shock freezing, they lose their presentation almost completely. However, it is worth remembering that even Coolmatic a cucumber will not make an ideal product after defrosting - physics cannot be fooled, but the damage will be minimized.
Energy consumption and economic aspect
The use of the function Coolmatic directly affects electricity consumption. Since the compressor operates without rest breaks, energy consumption increases significantly. Depending on the refrigerator model and energy efficiency class, consumption may increase by 1.5–2 times compared to the standard mode.
If you leave the mode on for a day, this can add a significant amount to your electricity bills, especially at high tariffs. Therefore, it is economically advisable to use the function only when necessary and be sure to turn it off immediately after achieving the result.
Modern inverter compressors, which are often found in refrigerators Coolmatic, are more economical and create less noise, but even they consume maximum resources in continuous operation. Electronics tries to optimize the process, but physics is physics: cooling a large volume requires energy.
To estimate costs, you can give an approximate table (average figures):
- ⚡ Normal mode: about 1–1.5 kWh per day.
- ⚡ Coolmatic mode: can reach 2.5–3 kWh per day.
- ⚡ Cost: at a tariff of 5 rubles/kWh, a day of Coolmatic operation will cost about 10–15 rubles versus 5–7 rubles in normal mode.
It would seem that the difference is small, but with frequent use without need, the annual overpayment can amount to a significant amount. In addition, the compressor resource is consumed faster, which can lead to earlier and more expensive repairs.
Frequent errors during operation
Users often make mistakes when using the function Coolmatic, which reduces its effectiveness or harms the equipment. One of the most common mistakes is leaving the mode on all the time “just in case.”
Another mistake is loading too many products into the chamber at one time, even with Coolmaticon. If you load 10 kg of warm meat into a small refrigerator, the system may not be able to cope, and some of the food in the center of the chamber will still spoil while the edge freezes.
⚠️ Attention: Do not fill the freezer completely tightly with Coolmaticon. For effective circulation of cold air, it is necessary to leave gaps between the bags and the walls of the chamber.
It is also a mistake to ignore sound signals or blinking indicators, which may indicate a system overload or malfunction. If the refrigerator has been operating in Coolmatic mode for 2 days and does not turn off on its own, this is a reason to check the technical condition.
What happens if you forget to turn off Coolmatic?
Modern refrigerators from Bosch and Siemens have built-in protection. Typically, after 50-65 hours of operation in extreme mode, the system forcibly turns off the function and returns the temperature to standard. However, you should not rely on this function regularly, as it is stressful for the electronics.
Comparison with analogues from other manufacturers
Function Coolmatic is a proprietary name used primarily by the BSH concern (Bosch, Siemens). However, almost all major manufacturers have similar technologies, they just have different names.
For example, Samsung calls this function Power Freeze, LG - Express Freeze, Indesit and Ariston - Fast Freeze or Eco Freeze (depending on the model). The essence is the same for all: forced operation of the compressor to quickly reduce the temperature.
Differences may lie in the “smart” shutdown algorithms and the maximum temperature achieved. Some brands allow you to customize the duration of the mode, while Coolmatic often works on a fixed timer or until manual cancellation.
Comparative table of modes
To better understand the place Coolmatic in the arsenal of refrigerator functions, let's compare it with the normal mode and holiday mode.
| Parameter | Normal mode | Coolmatic | Holiday mode (Eco) |
|---|---|---|---|
| Temperature in the freezer | -18°C | up to -24°C and below | +15°C (freezer off) |
| Compressor operation | Cyclic | Continuous | Minimum / Off |
| Energy consumption | Standard | Maximum | Minimum |
| Purpose | Storage | Quick freezing | Savings in the absence |
The table shows that Coolmatic is a tool for solving specific problems, and not for everyday use. It occupies a niche between conventional storage and a complete stop of equipment.
Possible problems and their solutions
When using the mode Coolmatic users may encounter a number of problems. Most often this is an increased noise level. As the compressor operates at full speed, the hum may become more noticeable, especially at night.
Another problem is the formation of excess ice in drip-type refrigerators or older models. Intensive work may lead to the fact that the defrosting system will not have time to cope with moisture, and after some time manual defrosting will be required.
If the indicator Coolmatic flashes, but the mode does not turn on, this may indicate:
- ❄️ Sensor malfunction temperature.
- ❄️ Problems with the control board.
- ❄️ Refrigerant leak (the system cannot reach the desired temperature).
- ❄️ Clogged capillary or filter drier.
In such cases, it is recommended to contact the service center. Independent repair of complex electronic cooling systems is not recommended, as it requires special equipment and knowledge.
Can Coolmatic be used to cool drinks?
Technically it is possible, but not advisable. This mode is designed for freezing foods with high moisture content. To cool bottles of water or juice, simply lower the overall temperature in the refrigerator compartment or use a special compartment. Using a powerful freezing mode for liquid will only waste energy and risk bottles bursting with ice.
How long can you keep the Coolmatic on?
The recommended operating time is from 6 to 24 hours, depending on the load size. Manufacturers do not recommend exceeding 48 hours of continuous operation. If the temperature has not stabilized during this time, it means that either too many warm products are loaded, or there is a malfunction.
Is the mode harmful for the compressor?
Short-term use does not harm a modern compressor, since it is designed for such loads. However, constant operation in the “turbo” mode without rest breaks reduces the overall engine life and increases the wear of mechanical parts.
Why does the temperature not rise for a long time after turning off the Coolmatic?
This is a normal phenomenon. After intensive freezing, a large supply of “cold” accumulates in the chamber and in the products themselves. The thermostat will not turn on the compressor until the temperature rises to the upper threshold (for example, from -24°C to -18°C). This allows the system to rest and save energy.
Is Coolmatic different in No Frost and drip refrigerators?
The operating principle is the same - increased compressor operation. However, in systems No Frost the effect is achieved faster due to forced air circulation by fans. In drip systems, the process is slower, since the cold is transmitted mainly through the walls and natural convection.