Owners of modern German equipment are often faced with many buttons on the control panel, the meaning of which is not always obvious without studying the instructions. One of these keys is Cool Pluswhich is found in refrigerator models Liebherr of the middle and high price segment. This function is not just a decorative element, but is an important tool for managing the temperature regime.
Understanding the principle of operation of this mode allows you to get the most out of your refrigeration equipment. Activating Cool Plus puts the compressor in maximum performance mode for a certain period, ignoring standard shutdown cycles. This is necessary to quickly reduce the temperature inside the chambers after loading a large amount of warm food.
In this material we will analyze in detail how exactly this option works, when it should be turned on and what indicators indicate its activity. Proper use intensive cooling extends the life of the compressor and preserves the freshness of products.
The principle of operation of the intensive cooling mode
Mode Cool Plus (sometimes referred to as Super Cool) is an algorithm forced operation of the compressor. In the normal state, the refrigerator Liebherr maintains the set temperature, turning on the motor-compressor only when the sensors detect an increase in degrees above the set threshold. However, when the function is activated Cool Plus the control system temporarily blocks the compressor from turning off.
This means that the unit operates continuously, cooling the evaporator as intensively as possible and supplying cold air to the chambers. The duration of this cycle is usually limited to a time interval, for example, 6 or 12 hours, after which the system automatically returns to normal operation. This prevents excessive energy consumption and freezing of products if the user forgets to turn off the function.
The main purpose of this mode is to quickly compensate for the thermal shock that occurs when a large volume of room temperature products is placed in the chamber. If you load a lot of warm items into normal mode, the overall temperature in the refrigerator will rise sharply and existing stock may begin to spoil. The quick freezing function minimizes this risk.
Technical details of the compressor operation
In the Cool Plus mode, the Liebherr inverter compressor can operate at higher speeds, creating greater refrigerant pressure in the system. This provides more intense heat transfer, but is accompanied by an increased noise level, which is absolutely normal for this mode.
When it is necessary to activate the Cool Plus function
The use of intensive cooling mode should be justified. Switching on Cool Plus is relevant in situations where a sharp and significant decrease in temperature is required in the entire volume of the refrigerator or freezer. Most often this happens after returning from a store with large purchases.
This function is also useful before a long absence, when you plan to load the refrigerator with groceries in advance. If you know that the door will be opened frequently in the next few hours (for example, while preparing a holiday dinner), activating the mode in advance will help create a reserve of cold.
- 🛒 After a large purchase of products, when more than 3-4 kg of warm food are placed in the chambers at a time.
- 🎉 Before a party or holiday, to ensure a maximum supply of cold before opening frequently doors.
- 🌡️ If the ambient temperature in the room where the refrigerator is located has sharply increased (for example, in the summer or when the air conditioner breaks down).
Indication and control on the refrigerator panel
The refrigerator control interface Liebherr may vary depending on the series (Comfort, Premium, Grand Cru), but the logic of the button operation Cool Plus remains united. On the display or panel with LED indicators, the corresponding symbol lights up, often depicting a snowflake with an arrow or simply the inscription “Cool”.
To activate the mode, you must press the corresponding touch button. Some models require a short press, others require a long press for 3 seconds to prevent children from accidentally turning it on. After activation, an indicator lights up on the display confirming that the function has been started.
It is important to know how the equipment behaves after the end of the cycle. Usually after 6-12 hours the indicator goes out and the refrigerator returns to the previously set temperature parameters. If the indicator blinks or is constantly on after a day, this may indicate a malfunction of the sensors or control system.
| Indicator status | Meaning | User action |
|---|---|---|
| On constantly | The mode is active, running intensive cooling | Wait for automatic shutdown or turn it off manually |
| Flashing | The temperature in the chamber is higher than normal or defrosting is in progress | Check the door is tightly closed |
| Not lit | Normal operation | No action required |
| Lights together with Alarm | Critical temperature increase | Urgently check the products and operation of the unit |
Differences between Cool Plus and other Liebherr modes
In the model range Liebherr There are various functions that may seem similar, but have different purposes. Cool Plus Often confused with "Eco" or "Smart Device" mode. However, the difference lies in the operating algorithms of the compressor.
Mode Eco is aimed at saving energy and operates at slightly elevated temperatures, which is acceptable for long-term storage, but not suitable for quick freezing. At the same time Cool Plus ignores savings for the sake of speed. Mode Smart Device (or Smart Cooling) is an intelligent system that itself analyzes user behavior and turns on intensive cooling only when necessary, without human intervention.
There is also a separate mode SuperFrost (Super Freeze), which is often used in conjunction with Cool Plus. While Cool Plus focuses primarily on the refrigerator compartment (or overall intensity), SuperFrost focuses on the freezer compartment, freezing food with a thin layer of ice to preserve its structure.
⚠️ Attention: Don't activate multiple intensive modes (such as Cool Plus and SuperFrost) at the same time unless absolutely necessary. This creates a double load on the electrical network and the compressor, which can lead to the activation of protective mechanisms.
The influence of the mode on energy consumption and equipment life
Any high power mode affects electricity consumption. When activated Cool Plusthe refrigerator Liebherr consumes significantly more kWh than in normal mode. The compressor works without pauses, which is the main factor in the growth of electricity bills.
However, modern models are equipped with inverter compressors that can smoothly regulate power. Even in intensive cooling mode, they work more efficiently than older models, but the difference in consumption is still noticeable. Long-term use in this mode (more than 24 hours) is not recommended.
- 💡 Short-term use (up to 12 hours) does not have a negative impact on the equipment life.
- 📉 Constant operation in maximum mode reduces the service life of the lubricant in the compressor.
- 🔌 Make sure that that the socket and wiring can withstand peak currents, especially in older homes.
Possible problems and ways to solve them
Sometimes users encounter situations when the button Cool Plus does not respond or the mode does not turn on. This may be caused by a software glitch in the electronics. In most cases, rebooting the device helps: unplug the refrigerator for 10-15 minutes, and then turn it on again.
If the indicator is on, but no cooling occurs, the compressor itself or the heat removal system (condenser) may be faulty. It is also worth checking whether the control panel is locked (function Child Lock), since in this state the buttons do not respond to presses.
In some cases, especially in models with the system Smart Device, manual start Cool Plus may be temporarily unavailable if the intelligent system believes that this is not necessary, or vice versa, if it is already operating in maximum mode.
⚠️ Attention: If, after disabling the Cool Plus mode, the temperature in the chamber does not recover within 2-3 hours, or the indicator continues to blink, contact an authorized service center. Self-repair of cooling systems is prohibited.
☑️ Check before calling a technician
Frequently asked questions (FAQ)
Is it possible to keep the Cool Plus mode on all the time?
No, this is not recommended. The mode is intended for short-term use. Constant operation at maximum power will lead to increased wear on the compressor, increased energy consumption and possible freezing of food, especially vegetables and fruits, which can lose their properties at too low temperatures.
Why is the Cool Plus button not pressed?
Most likely, the control panel lock is activated (child protection). Find the button with the picture of a lock and hold it for a few seconds until you hear a beep or the lock indicator goes off. After this, control of the buttons will become available.
Does this mode affect the formation of ice?
In refrigerators with the system NoFrost the formation of ice inside the chambers does not occur regardless of the operating mode. In models with a drip defrosting system, intensive cooling can contribute to more active formation of condensation on the back wall, but the standard moisture removal system should cope with this.
How long does the Cool Plus cycle work?
The standard cycle time in refrigerators Liebherr is usually 6 hours, but in some models it can be extended up to 12 hours or adjusted by the user through the settings menu. After this, the timer automatically turns off the function.