Owners of modern refrigeration units are often faced with the myth that the NoFrost or FrostSafe systems with which the models are equipped Liebherr SBSdo not require defrosting at all. Although the compressor and evaporator are indeed free of ice, condensation and moisture remain in food storage areas. Over time, this leads to the appearance of an unpleasant odor, the growth of bacteria and even icing of the lower shelves, which reduces the efficiency of the unit.
Many users ignore the need for prevention until they encounter a problem with water drainage or a decrease in the quality of cooling. Scheduled defrosting - this is not just washing, but a necessary technical procedure for extending the life of complex electronics and seals. In this article, we will analyze in detail the algorithm of actions for models of the SBS series, which often have a complex door design and several temperature zones.
You should not wait until the layer of ice becomes visually noticeable. Regular maintenance will prevent situations where the drainage hole becomes blocked by debris and water begins to accumulate at the bottom of the chamber. The correct approach to this process ensures that your Liebherr will work silently and economically for many years, keeping food fresh.
Preparation of equipment and premises for the procedure
Before starting any manipulations, it is necessary to clear the internal space. Remove all food, shelves and drawers. Pay special attention to glass shelves: if you take them out of a warm room immediately after the refrigerator is running, they may burst due to a sharp temperature change. Let them sit at room temperature for 10-15 minutes before washing.
It is important to prepare a place for draining water, since models Liebherr SBS often have a large internal volume. Place absorbent rags or towels on the floor in front of the unit in advance. If you are unable to move the refrigerator to the drain, prepare a flat tray or baking sheet that can be placed under the front of the unit.
⚠️ Attention: Make sure the power cord is in an accessible place. Do not attempt to defrost your refrigerator by simply turning it off using the button on the control panel if the instructions for your specific model do not allow this. A complete blackout through the outlet is the safest option.
For quality cleaning, you will need safe detergents. Aggressive chemicals, abrasive powders or solvents can damage the plastic trim of the chambers and sealing rubber bands. It is best to use specialized sprays for refrigerators or a weak solution of baking soda, which perfectly neutralizes odors.
Step-by-step algorithm for shutdown and defrosting
The shutdown process must take place sequentially so as not to damage the control system. First, remove all removable parts, then disconnect the device from the power supply. If your model Liebherr is connected to a Smart Home system or has a display, wait until the screen goes dark before unplugging.
Leave the refrigerator and freezer doors open. This will speed up the melting of the remaining ice and allow odors to dissipate. Depending on the room temperature, a complete cycle can take from 3 to 6 hours. Do not use a hair dryer or other heating devices to speed up the process - this can deform plastic parts and damage the evaporator tubes.
☑️ Preparation checklist
In models with a system SmartFrost or combined cooling, it is important to check the condition of the drainage channels. While the ice is melting, you can carefully clean the water drainage hole with a special soft brush or brush. A blockage here is a common cause of puddles appearing under the refrigerator after turning it on.
⚠️ Attention: Never use sharp objects (knives, screwdrivers) to chip ice. A puncture of the cooling circuit will lead to an immediate release of refrigerant and expensive repairs, which are often not economically feasible.
Features of caring for NoFrost and SmartFrost systems
Equipment owners Liebherr should understand the difference between cooling systems. In NoFrost freezers, ice does not form on the back wall, but moisture from the food settles on the walls of the drawers and seals. It is these areas that require careful wiping. Ignoring these areas results in the door no longer closing tightly.
The refrigerator compartment in SBS models is often equipped with a system SmartFrostthat reduces the amount of ice, but does not eliminate it completely. It is important to flush the air circulation channels here. If they become clogged with dust or food particles, the cold will be distributed unevenly and the compressor will begin to work with increased load.
Why does it smell after defrosting?
An unpleasant odor after the procedure usually indicates that water has gotten into hard-to-reach niches under shelves or behind plastic panels. Thoroughly dry all corners with a hairdryer on cool air or leave the refrigerator open for a day.
Regular cleaning of the vents is key to maintenance. Dust, mixing with moisture, forms a mud mass, which facilitates heat exchange. Wipe the grilles with a damp, well-wrung cloth. This is a simple operation that significantly increases the energy efficiency of your device.
How to wash internal surfaces and seals
The choice of cleaning agent is critical to preserving the properties of plastic and rubber. It is strictly not recommended to use gasoline, acetone, formic acid or abrasive sponges. These substances make the plastic brittle, and the rubber seals lose their elasticity, which leads to depressurization of the chamber.
The optimal solution is to use a soft microfiber cloth and a warm soapy solution. To disinfect, you can wipe the surfaces with a solution of acetic acid in a ratio of 1:3 or use special wipes for household appliances. After wet cleaning, be sure to wipe all surfaces dry.
| Type of contamination | Recommended product | Prohibited actions |
|---|---|---|
| Grease stains | Baking soda solution | Rub with a metal sponge |
| Scale on the shelves | Weak solution of citric acid | Use hot water |
| Mold in the corners | Specialized antiseptic spray | Leave the surface damp |
| Contamination of the seal | Soap solution, toothbrush | Stretch the rubber when cleaning |
Rubber deserve special attention door seals. This is where dirt most often accumulates, which is not visible during a quick inspection. Carefully bend the edges of the seal and wipe the hidden cavities with a cotton swab dipped in soapy water. This will restore the tightness of the door.
Drying and assembling the Liebherr refrigerator
After all surfaces have been washed, the drying stage begins. Moisture is the main enemy of electronics and a source of mold. Carefully wipe all corners, joints of plastic panels and places where shelves are attached. Pay special attention to the area around the light bulb and temperature sensors.
Let the refrigerator stand open for another 30-40 minutes after the final wipe. This ensures the evaporation of microdroplets of water that could remain in microcracks in the plastic. Only after making sure that it is completely dry can you begin assembly.
Install shelves and drawers carefully, checking their correct position. A loose drawer may block air flow or prevent the door from closing tightly. After assembly, turn on the refrigerator, but do not load food immediately.
⚠️ Attention: You cannot start the unit with food inside immediately after defrosting. The compressor needs time (from 2 to 4 hours) to reach the required temperature and reach operating mode. Loading warm food will cause the motor to wear out.
Typical mistakes when servicing Liebherr equipment
One of the most common mistakes is using hot water to speed up the melting of ice. Sudden heating of the plastic can lead to its deformation, and the shelves will no longer fit into the grooves. In addition, hot steam can damage electronic components located near the walls.
Another mistake is ignoring external cleaning. The condenser located on the rear wall (grid) becomes covered with a layer of dust and pet hair over time. This impairs heat transfer, the compressor overheats and consumes more electricity. You need to vacuum the grille at the back regularly.
Some users try to wash the refrigerator without unplugging it, using an extension cord for other appliances. This is a violation of safety rules. Water and electricity are incompatible, and the risk of a short circuit if moisture gets on the contacts is extremely high.
Frequently asked questions (FAQ)
Is it necessary to defrost a Liebherr refrigerator with NoFrost?
Yes, defrosting and general cleaning are necessary at least 1-2 times a year. The NoFrost system prevents the formation of ice on the evaporator, but does not protect against contamination of the walls, drawers and seals, as well as against the appearance of bacteria and odors.
How long can you not turn on the refrigerator after washing?
After wet cleaning and assembly, it is enough to let the device stand for 30-40 minutes to evaporate the residual moisture. After plugging it in, let it run empty for 2-3 hours until it reaches operating temperature before loading food.
What should you do if there is a strong smell after defrosting?
Water has probably gotten into the drainage system or under the removable panels. Leave the refrigerator open for a day. You can put an open pack of soda, activated carbon or a special odor absorber tablet for refrigerators inside.
Can glass shelves be washed with hot water?
No, tempered glass may not withstand sudden temperature changes, especially if it was previously in a cold chamber. Use only warm water at room temperature.