Buying a new refrigerator is always a joyful event, promising freshness of food and the absence of everyday problems. However, joy can give way to disappointment if you ignore the technical features of the first inclusion of German technology. Refrigerators Liebherr are known for their complex electronics and sensitive compressors, which require a special approach during initial activation.
Many users make the mistake of plugging the device into the network immediately after delivery. This is strictly forbidden, since the oil in the compressor must return to the crankcase after shaking during transportation. The correct algorithm of actions will extend the service life of the unit and avoid false alarms.
In this article we will analyze the entire process in detail: from unpacking to configuration smart functions. You will learn how long to wait, how to set the optimal parameters for the zone EasyFresh and what to do if the control panel does not respond.
Preparing for the first turn on
The first thing to do after delivering the equipment to the apartment is to let it “settle.” If the refrigerator was transported in a horizontal position or simply tilted strongly, the compressor oil takes time to drain back into the reservoir. For models Liebherr the minimum waiting time is 4 hours, but it is better to wait a full day.
While the equipment is resting, prepare the installation site. The refrigerator should be placed on a flat surface, away from heating devices and direct sunlight. The gap between the back of the device and the wall should be at least 5-7 cm for free air circulation.
Carefully remove all shipping materials. Pay special attention to the inner packaging: foam inserts can block the moving elements of the drawers or the system flaps NoFrost. Also remove the protective film from metal surfaces, if any.
⚠️ Warning: Do not use sharp objects to remove stickers or film from inside the camera. Damage to the evaporator will lead to a refrigerant leak and costly repairs.
Check the integrity of the door seals. They should fit snugly around the entire perimeter of the body. If you notice creases, try to carefully straighten them with a hairdryer at the minimum temperature, but do not overheat the rubber.
Installation and alignment of the case
High-quality installation is the key to quiet operation and proper sealing. German engineers have provided adjustable supports that allow you to compensate for uneven floors. To make adjustments, you will need the included wrench or a regular wrench.
Rotate the front supports clockwise to raise the angle, or counterclockwise to lower it. The ideal position is when the refrigerator is slightly tilted back. This will ensure that the doors close automatically when released at a slight angle.
Use a building level to check that the top edge is level. Distortions can lead to improper operation of the condensate drainage system and noise during compressor operation.
Why can a Liebherr refrigerator hum after installation?
The hum often occurs due to vibration of the case against the floor or wall. Make sure that the unit does not touch furniture and that the supports are firmly in contact with the floor. If the floor is wooden and resonates, place rubber anti-vibration mats under the supports.
Primary connection to the electrical network
After the refrigerator has “rested” and is in its place, you can begin electrification. Connect the device only to a separate grounded outlet. The use of extension cords, tees or low-quality surge protectors is not recommended, as the starting currents of the compressor can be high.
Immediately after connecting to the network, you will hear a characteristic click and, possibly, a slight hum. This is normal - the compressor starts. The control panel should light up. Depending on the model (CN, CBN, KB series), the interface may be touch-sensitive or push-button.
If the alarm indicators are lit on the display or the temperature symbol is blinking, do not be alarmed. During the first hours of operation, the refrigerator has not yet gained cold, and the electronics signal a high temperature inside the chambers. Protection system overload can also briefly block the start if the voltage in the network is unstable.
Check the operation of the internal lighting. The door should open easily, without squeaks. If the door opens too tightly, perhaps the seal has not yet been developed, or the refrigerator is not level.
Adjusting temperature settings
The factory settings of refrigerators Liebherr are usually optimal, but they can and should be adapted to your needs. For the refrigerator compartment, the recommended temperature is +5°C, and for the freezer compartment - -18°C.
To change settings, use the touch panel or control buttons. Press the corresponding button until the desired value lights up on the display. Pay attention to the special modes:
- 🌡️ SuperCool —super-cooling mode, quickly reduces the temperature in the refrigerator compartment after loading food.
- ❄️ SuperFrost —a similar mode for the freezer, freezes products faster, preserving their structure.
- 💡 EcoMode —economical mode that optimizes the operation of the compressor to reduce energy consumption.
It is important not to confuse the modes. If you've just placed a lot of products, turn it on SuperCool for a few hours, then return to standard settings. Continuous operation in supercool mode can lead to the formation of excess frost or over-drying of food.
⚠️ Attention: Do not set the temperature in the refrigerator compartment below +2°C on a permanent basis. This can lead to freezing of vegetables in the freshness zone and increase the load on the compressor.
For models with a zone VarioFresh or EasyFresh humidity is adjusted automatically depending on the selected temperature, but in some series there are mechanical damper controls. For vegetables and fruits, the humidity should be maximum (the damper is closed), for meat and cheeses - minimal (the damper is open).
Loading with products and testing
After switching on, the refrigerator takes time to enter operating mode. An empty unit will gain temperature faster, but for stability of operation it is recommended to wait 8-12 hours before fully loading.
Carry out the first load gradually. Do not place hot or warm food - this will cause a sharp rise in temperature and turn on the compressor at maximum power. Distribute food evenly without blocking the ventilation holes on the back wall.
Check the operation of the system NoFrost. A day after switching on, there should be no visible ice or drops of water on the walls of the freezer and refrigerator compartments (except for the freshness zone, where the humidity is high).
☑️ Ready for loading
Pay attention to odors. New plastic may have a specific aroma that dissipates in a couple of days. If the smell is pungent and chemical, wipe the internal surfaces with a weak soda solution and ventilate the chambers.
Connecting smart functions (SmartDevice)
Modern models Liebherr are equipped with a module SmartDeviceBoxthat allows you to control the refrigerator via a smartphone. This is not just a marketing toy, but a useful tool for monitoring temperature and receiving notifications.
To activate the function, find the module slot (usually at the top of the refrigerator compartment, behind a decorative panel or in a niche). Install the module if it is included separately. Then download the application Liebherr Home Connect to your smartphone.
The pairing process takes a few minutes:
- Turn on Bluetooth and geolocation on your phone.
- Launch the application and select “Add device.”
- Follow the instructions on the screen by entering a code that may need to be activated through the refrigerator panel (button combination).
What to do if the SmartDevice module does not connect?
Make sure that you are using a 2.4 GHz Wi-Fi network (many smart devices do not see the 5 GHz network). Also check if the router is blocking the connection of new devices (MAC filtering). Try rebooting the router and the module itself (by removing and inserting it again).
Through the application, you can receive notifications if the door is left open, or if the temperature is outside the permissible limits. This is especially useful when you are on vacation.
Table of typical startup faults
Even with proper startup, situations may arise that require attention. Below is a table to help diagnose common symptoms.
| Symptom | Possible cause | Action |
|---|---|---|
| Alarm light on | Temperature higher norms | Wait 6-12 hours, do not open the door |
| Strong noise/hum | Uneven installation | Adjust the supports to the level |
| Water on the floor | Drainage is clogged or skewed | Check the level, clean the drainage hole |
| The light does not light | Transport plug | Check whether the film has been removed from lamp/sensor |
| Vibration of the case | Touching walls or furniture | Move the refrigerator, check the gaps |
If after following all the recommendations the problem persists, contact an authorized service center. Self-repair of complex electronics Liebherr may lead to loss of warranty.
⚠️ Attention: Specifications and interfaces of models may vary. Always check the official instructions supplied with your specific appliance, as manufacturers may make design changes without notice.
Frequently Asked Questions (FAQ)
How long can you not turn on the Liebherr refrigerator after purchase?
The minimum waiting time is 4 hours if the device was transported vertically. If horizontal, it is better to wait 12-24 hours for the oil to completely drain into the compressor.
Why is the red temperature indicator flashing?
This is a signal that the temperature inside the chambers is higher than safe. The first time you turn it on, this is normal and will go away after 6-10 hours of operation. If it flashes later, check that the doors are tightly closed.
Do you need to defrost a Liebherr refrigerator with NoFrost?
The NoFrost system automatically removes moisture, so regular defrosting is not required. However, it is recommended to completely turn off the device once a year, wash it and let it dry for hygiene.
Can a Liebherr refrigerator be transported lying down?
Transporting it in a lying position is highly undesirable due to the risk of damage to the tubes and oil leakage. If necessary, carry only on the side opposite to the outlet side of the compressor tubes, and leave for a long time before turning on.
How to activate the vacation mode?
In the settings menu, select the “Vacation” mode. It will turn off the refrigerator compartment, leaving the freezer running, which will save energy while you are not at home.