Modern refrigeration units Liebherr are famous for their reliability and thoughtful ergonomics, but even the most advanced equipment requires proper installation for stable operation. Many users encounter situations where, after delivery or moving, the device begins to hum, does not close tightly, or cools food unevenly. Often the cause is a simple mis-adjustment of the position of the housing or broken factory thermostat settings.
Quality adjusting the Liebherr refrigerator is not just a matter of aesthetics, but a necessary condition for proper refrigerant circulation and compressor operation. If the unit is not level, the door may open by itself or, conversely, not fit completely, which leads to freezing of the evaporator. Understanding the principles of setup will allow you to avoid calling a technician and unnecessary costs for service.
In this article we will analyze in detail all stages of setup: from aligning the support legs to fine calibration of electronic parameters. You will learn how to correctly set the temperature for different chambers and what to do if the door closer mechanism stops functioning correctly. A competent approach to operation of equipment will extend its service life.
Basic temperature settings
The first step after installing the refrigerator in a permanent place should be setting the temperature parameters. In models Liebherr with electronic control, this process is carried out through a control panel located on the outside of the door or inside the chamber. For mechanical models, a rotary control is used, where the number indicates the cooling intensity, not degrees Celsius.
The optimal temperature for the main refrigeration chamber is considered to be the range from +4°C to +5°C. It is at these rates that bacteria multiply the slowest, and products remain fresh for the longest possible time. If you set the value below +2°C, there is a risk of freezing vegetables in the freshness zone, and at values above +7°C the shelf life of perishable products is sharply reduced.
⚠️ Attention: Do not try to suddenly change the temperature immediately after loading a large amount of warm food. Allow the compressor to reach operating mode for several hours before making adjustments to the settings.
For a freezer, the standard value is -18°C. This is the “golden mean”, which allows you to store meat, fish and semi-finished products for up to 12 months without loss of taste. The SuperFrost (Super Freeze) function allows you to temporarily lower the temperature to -24°C or -32°C to quickly freeze fresh food, after which the mode automatically turns off after 65 hours.
It is important to understand the difference between the actual temperature inside the chamber and the readings on the display. If you notice a discrepancy, you may need to calibrate the sensors or check the seal for leaks. In some advanced models, a function is available SmartDevicethat allows you to control parameters via a smartphone, which simplifies monitoring.
Adjusting the height of the support legs
The correct horizontal position of the body is the foundation for the stable operation of any refrigeration equipment. If Liebherr stands on an uneven floor, the compressor may make increased noise, and vibrations will be transmitted to furniture and the floor. Adjustment is carried out using four support legs, two of which (the front ones) are usually adjustable screws.
To get started, you will need a building level and a wrench (often included with the equipment or a standard open-end wrench is used). By rotating the front legs clockwise, you raise the angle of the body, counterclockwise, you lower it. The rear legs are usually non-adjustable, but in some industrial models they may have threads for fine adjustment.
☑️ Checking the installation of the refrigerator
It is critical to ensure that the body tilts slightly backwards. This is necessary so that the refrigerator door closes on its own under the influence of gravity if it is released in a half-open state. If the tilt is in the forward direction, the door will constantly strive to swing open, disturbing the temperature regime and loading the seal.
| Parameter | Recommended value | Consequences of violation |
|---|---|---|
| Tilt back | 1-2 degrees | Spontaneous opening of the door |
| Gap at the wall | Minimum 5 cm | Compressor overheating, increased energy consumption |
| Stability | No rolling | Increased noise, vibration, risk of tube breakage |
| The height of the front legs | Higher than the rear ones | Incorrect operation closing mechanism |
After adjustment, be sure to check the stability of the unit by slightly rocking it from side to side. If play is observed, tighten the legs until the wobble is completely eliminated. Remember that the floor under the refrigerator must support significant weight, especially if the appliances are filled with food.
Setting up the door and closer mechanism
Refrigerator doors Liebherr are equipped with complex hinge systems and, in many models, telescopic closers. Over time or after improper transportation, they may need to be adjusted. The main symptom of the need for adjustment is that the door does not reach the end and bounces back, or closes with excessive force.
Adjusting the tilt of the door is carried out by tightening the upper and lower hinges. By loosening the fixing bolts, you can move the blade in the desired direction. However, if we are talking about a telescopic closer (a mechanism that itself “reaches” the door in the last centimeters), then the tension force of the spring or the position of the rod is adjusted here.
What to do if the door touches the body?
If, when closing, the door touches the body or shelves, check whether the front legs are twisted too high. Excessive tilting back can cause the top corner of the door to drop below the frame level. Also check the filling of the shelves on the door itself - perhaps they are overloaded and distort the structure.
Models with the system Liebherr SoftSystem use a hydraulic shock absorber, which ensures smooth closing even when fully loaded. If the door begins to close with a roar, the shock absorber may have run out of fluid or the system's tightness may be compromised. In this case, simple adjustment is not enough - the unit will need to be replaced.
⚠️ Attention: Before starting work on adjusting the hinges, be sure to disconnect the refrigerator from the power supply. Do not remove the doors completely without an assistant, as they have significant weight and can drop the unit or damage the floor covering.
Calibration of BioFresh freshness zones
A unique feature of many models Liebherr are drawers BioFreshthat support temperature around 0°C and high humidity for storing vegetables, fruits, meat and fish. The adjustment of these zones often raises questions, since they depend on the overall temperature in the refrigerator compartment.
In mechanical models, the BioFresh zone is adjusted using a separate slider or wheel located inside the chamber, usually above the drawers or on the side wall. The position of the control affects the damper that supplies cold air from the freezer or main evaporator. For meat and fish, it is recommended to set the minimum temperature (closer to 0°C), and for vegetables - a little higher so that they do not freeze.
In electronic models with a system EasyFresh or HydroBreeze the process is automated. However, the user can influence the humidity. For example, in boxes with an adjustable damper (AirFresh), you can change the humidity level: a closed damper retains moisture for vegetables, an open one allows dry air to circulate for cheeses and sausages.
If you notice that food in the freshness zone is freezing or, conversely, withering, try changing the position of the air supply regulator by one notch and wait 24 hours. Abrupt changes in settings will not give an objective result, since thermal stabilization of the chamber volume takes time.
Eliminating noise and vibration during operation
Refrigerators Liebherr are known for their quiet operation, but sometimes users can hear extraneous sounds. It is important to distinguish between normal operating noises (refrigerant sounds, thermostat clicks, compressor hums) and sounds that indicate a problem or incorrect installation. Often the “problem” is solved by simply adjusting the position of the unit.
If the refrigerator hums or vibrates, check the distance to the walls and furniture. The rear grille of the condenser must not touch any surfaces. Also make sure that bottles or bags inside the chamber do not touch the walls and do not rattle due to vibration of the compressor. Sometimes the source of noise becomes a removable shelf, which just needs to be installed more tightly in the grooves.
In models with the system NoFrost the sound of a running fan or the crackling of plastic may be heard periodically when the temperature changes (thermal expansion). This is absolutely normal. However, if a metallic clang or whistle is heard, this may indicate that the refrigeration circuit tubes are touching the housing or each other.
| Type of sound | Probable cause | Remedy method |
|---|---|---|
| Monotone hum | Uneven installation, touching furniture | Align the legs, move them away from the walls |
| Burring, gurgling | Refrigerant circulation | Normal, no intervention required |
| Clicks | Thermostat or relay operation | Normal for on/off cycles |
| Whistling or squeaking | Fan malfunction or compressor | Requires diagnostics by a technician |
If, after eliminating external factors (vibration, touch), the noise persists and interferes with comfortable living, it may be a defective compressor or an imbalance of internal components. In this case, independent disassembly of the compressor compartment is prohibited.
Resetting settings and diagnosing errors
In the event of electronic failures or after power surges, the refrigerator Liebherr may begin to work incorrectly: blink indicators, emit sound signals, or not maintain the temperature. The first step in such a situation should always be a complete reset.
To perform a reset, you must disconnect the device from the power supply. Don’t just turn it off with a button, but simply remove the plug from the socket. Leave the refrigerator without power for at least 10-15 minutes. This time is necessary for the capacitors on the control board to discharge and the controller's RAM to be reset.
Hard Reset algorithm:1. Turn off the refrigerator with the On/Off button (if equipped).
2. Unplug the cord from the outlet.
3. Wait 15 minutes.
4. Connect to the network.
5. Press and hold the power button for 3-5 seconds.
After turning on, the device will go into factory settings mode. You will need to reset the desired temperature. If the error code (for example, F1, F2, E1) remains on the display, write it down. These codes indicate a specific malfunction of sensors or actuators.
⚠️ Attention: If after resetting and recalibrating the refrigerator continues to show an error or does not cool, do not Try to disassemble the control board yourself. This is complex electronics that requires professional diagnostic equipment.
Regular checking and correct adjustment of your refrigerator Liebherr is the key to its long service life. Do not ignore small nuances such as the tilt of the body or the tightness of the door, since it is the “little things” that make up the service life of expensive equipment. By following these recommendations, you will ensure ideal storage conditions for your products.
Why does the Liebherr refrigerator not maintain the temperature after adjustment?
If, after adjusting the legs and adjusting the thermostat, the temperature does not stabilize, check the tightness of the door seal. It may be dirty or damaged. Also, the reason may be insufficient clearance for ventilation at the back or a malfunction of the temperature sensor, which requires replacement.
How often should you check the adjustment of the legs of the refrigerator?
It is enough to check the horizontal installation once a year or after general cleaning, when the refrigerator has been moving. If the floor in the room is flat and not subject to deformation, the legs rarely go astray. However, if you notice that the door has stopped closing on its own, you should check it immediately.
Is it possible to adjust the temperature in SuperFrost mode constantly?
No, SuperFrost mode is intended for short-term intensive freezing. Constant operation in this mode will lead to excessive energy consumption, accelerated wear of the compressor and possible freezing of products, which will negatively affect their structure and taste.