Regular maintenance of refrigeration equipment is not just a matter of aesthetics, but a necessary condition for long and stable operation of expensive German equipment. Liebherr refrigerators are famous for their reliability and advanced technologies, such as the NoFrost or SmartFrostsystem, but even they require periodic intervention from the owner. Dust accumulating on the heat exchanger or a clogged drainage channel can lead to increased energy consumption and the appearance of unpleasant odors that are absorbed into the food.
Many users mistakenly believe that the presence of automatic defrosting completely eliminates the need for general cleaning. This is wrong. Internal surfaces, shelves and drawers come into contact with food, juices and potential bacteria, which must be removed mechanically. Properly carried out cleaning a Liebherr refrigerator will help maintain food freshness and prevent compressor breakdown due to overheating.
In this article we will analyze all stages of servicing your equipment: from preparing tools to the intricacies of caring for complex electronic components. You will learn what products are safe for plastic Liebherr, how to get to the hidden elements of the cooling system and what to do if a persistent smell appears inside. Following these recommendations will extend the life of your unit.
Preparation for the cleaning process and the necessary means
Before taking active steps, you need to properly organize your workspace and prepare equipment. Cleaning the refrigerator It takes time, so it is better to plan this procedure on a weekend when you will not need to open the door often for cooking. The first step should always be to completely disconnect the device from the electrical outlet. This is critical for safety, since you will be working with water and cleaning solutions in close proximity to electrical components.
To wash the interior and exterior surfaces, you will need soft sponges, microfiber and special cleaning products. Aggressive chemicals containing chlorine, acids or abrasive particles are strictly prohibited, as they can damage the antibacterial coating or scratch the plastic. Special sprays for household appliances or a simple solution of baking soda, which perfectly neutralizes odors, are ideal. SmartSteel or scratch the plastic. Special sprays for household appliances or a simple solution of baking soda, which perfectly neutralizes odors, are ideal.
It is also worth preparing containers for defrosted food and water in advance. If your model does not have a system NoFrost, ice may accumulate inside, which will need to be disposed of somewhere. Do not use hair dryers or heating devices to speed up defrosting - a sudden temperature change can deform the evaporator or damage the plastic of the chamber.
⚠️ Attention: Never use sharp objects (knives, screwdrivers) to chip ice inside the chamber. This can lead to breakdown of the evaporator tubes and a refrigerant leak, which will require expensive professional repairs.
Algorithm for defrosting and washing the internal chamber
The defrosting process depends on the type of cooling system of your unit. In models with a classic drip system CoolPlus or SmartFrost you must wait until the ice completely melts. In devices with technology NoFrost ice does not form on the walls, but moisture from the food still condenses, so preventative defrosting once a year is still recommended for thorough disinfection.
After the chamber is free of ice and food, proceed to washing. Start on the top shelves and work your way down. It is better to remove glass shelves SafetyGlass and wash them separately under running water to avoid dirt getting into the joints. Pay special attention to door seals - mold and food debris often accumulate in the folds of rubber, which become a source of odor.
☑️ Checklist for preparing for washing
To remove difficult stains, use a soft brush, but do not apply strong pressure. After washing, all surfaces must be wiped dry. Residual moisture can lead to re-formation of ice immediately after switching on or become a breeding ground for bacteria. Make sure all removable parts are completely dry before reinstalling them.
Care for the NoFrost and SmartFrost system
Owners of refrigerators Liebherr with a system NoFrost often wonder: do they need to clean the air supply ducts? Yes, this needs to be done regularly. Air ducts clogged with dust interfere with the circulation of cold air, which forces the compressor to work harder. In models SmartFrostthat use an evaporator with reduced icing, it is important to monitor the condition of the rear wall of the chamber.
To access hidden elements in some models, it may be necessary to remove plastic panels. Do this carefully while unclipping the latches. Inside you may find dust and small debris that got there from food or from the air. Remove dirt with a dry soft brush or vacuum cleaner at minimum power.
| System type | Frequency of defrosting | Care features |
|---|---|---|
| NoFrost | once a year (prevention) | Cleaning air ducts, checking drainage |
| SmartFrost | If the ice layer is > 5 mm | Carefully removing ice, washing the gutters |
| CoolPlus | As necessary | Thorough washing of the back wall and drain |
| DuoCooling | 1 time per year | Separate cleaning of chambers, checking valves |
The system deserves special attention DuoCooling, where the refrigerating and freezing chambers have independent circuits. It is important here not to confuse the elements during assembly and to make sure that the partitions between the zones are clean and do not violate the seal. Violation of the sealing of the chambers negates the advantages of the technology of separate storage of odors.
What is the DuoCooling system?
This is a technology that uses two separate refrigerant circuits for the refrigerator and freezer chambers. This prevents food from drying out and odors from mixing, since air does not circulate between compartments.
Cleaning the drainage system and removing odors
One of the most common reasons for the appearance of a puddle under the refrigerator or inside the chamber is a clogged drainage hole. It is located on the rear wall of the refrigerator compartment and serves to drain condensate into the evaporator. If the drain is clogged with food crumbs or mucus, water begins to accumulate at the bottom of the chamber.
To clean, use a special brush, which often comes with the refrigerator, or a soft wire wrapped in cotton wool. Carefully insert the tool into the hole and make several rotational movements. After mechanical cleaning, rinse the canal with warm water using a syringe or syringe without a needle. This will help flush out any remaining dirt.
⚠️ Attention: Specifications and location of drainage holes may vary depending on the specific model and year of manufacture. It is recommended to check the user's instructions (section "Care and Cleaning") before starting work in order to know exactly the location of the elements.
If the smell does not disappear after cleaning, it means that it has been absorbed into the plastic or rubber seals. In this case, natural adsorbents will help. Place activated carbon, soda in open containers or special odor absorbers inside the chamber. Do not use chemical flavors, they only mask the problem, but do not solve it, and can also give the food an unpleasant taste.
Maintenance of the external part and heat exchanger
The appearance of the refrigerator Liebherr is the face of your kitchen. For stainless steel cases, use only specialized products that do not leave streaks and create a protective film. Movements with the rag should be directed along the texture of the metal (“hairbreadth”) to avoid micro-scratches, which will eventually turn into noticeable stripes.
However, the most important part of external maintenance is hidden from view. On the back wall of the refrigerator there is a condenser (grid with pipes) and a compressor. Over time, they become covered with a layer of dust, which acts as a heat insulator. Dirty condenser poor heat transfer, the compressor works continuously, trying to gain temperature, which leads to increased electricity bills and wear on the motor.
To clean the back panel, move the refrigerator away from the wall and Vacuum the condenser grill and the area around the compressor. Use a soft nozzle to avoid bending the thin lamellas of the heat exchanger. If the dust is compacted, you can carefully brush it over. It is enough to carry out this procedure once every 6-12 months, depending on the dustiness of the room.
Typical cleaning mistakes and precautions
Even experienced housewives sometimes make mistakes that can cost expensive repairs. One of the most common is an attempt to clean the refrigerator without removing the glass shelves from the cold. If cold glass is SafetyGlass poured with hot water, it may burst due to thermal shock. Allow the shelves to warm to room temperature before washing.
Another mistake is using steam cleaners to clean interior plastic surfaces. The high temperature of the steam can deform the thin plastic of drawers and panels, as well as damage the adhesive joints of the seals. For disinfection, it is enough to use safe antiseptic solutions that do not require high-temperature exposure.
- 🚫 Do not turn on the refrigerator immediately after washing - let it stand for 3-4 hours so that the moisture in hard-to-reach places dries and the pressure in the system stabilizes (if defrosting was carried out).
- 🚫 Do not use abrasive sponges ("steel pads") to clean the internal walls - they leave microscopic scratches into which dirt gets clogged.
- 🚫 Do not pour water directly onto the ceiling of the camera or into the lamp area - this may lead to a short circuit.
- 🚫 Do not ignore the appearance of mold on seals - its spores spread quickly and can be hazardous to health.
Following these simple rules will allow you to avoid typical problems. Remember that Liebherr refrigerator is a complex technical device, and careful treatment of it will pay off in years of trouble-free operation. Regular maintenance does not take much time if you do it systematically, and not when the problem has already become obvious.
Is it possible to wash a Liebherr refrigerator with a window cleaner?
It is not recommended to use conventional window cleaners for the internal surfaces of the refrigerator. They often contain alcohol and ammonia, which can dry out the plastic, make it brittle, or change color. In addition, chemical residues may end up on food. It is better to use special household appliance products or a soda solution.
How often should you defrost a NoFrost refrigerator?
Although the NoFrost system prevents the formation of ice, it is recommended to defrost at least once a year. This is necessary for hygienic treatment, removal of bacteria and checking the operation of the drainage system, which cannot be properly cleaned without completely turning off the device.
What to do if after cleaning the refrigerator hums more?
If after cleaning you hear an increased hum, check whether the refrigerator is level on the floor. When moving, it could be moved, and the level would be disrupted. Also make sure there is nothing in the back touching walls or pipes that could cause vibration. If the noise does not stop after a day of operation, the fan may have been touched during cleaning.
How to remove yellow deposits on plastic boxes?
Yellowishness on plastic often appears from time or contact with certain products. Try making a paste of baking soda and water, apply to the stains and leave for several hours. Special wipes for cleaning plastic or a solution of hydrogen peroxide also help well, but avoid chlorine-containing bleaches.