The brand's modern technology Liebherr is famous for its reliability and advanced technologies for preserving food, but even the most advanced units require periodic maintenance. Owners of two-chamber models often wonder about the need and correct procedure for defrosting, especially if ice begins to form on the walls of the chamber or an unpleasant odor appears. Although many modern systems are positioned as not requiring defrosting, actual operation makes its own adjustments.
In this article we will look in detail at how to properly prepare two-chamber refrigerator for the cleaning procedure, whether it is necessary to turn off the power and how long the entire process will take. We will look at the differences between NoFrost and LowFrostsystems, since the approach to them is radically different. Ignoring simple maintenance rules can lead to decreased cooling efficiency and increased energy consumption.
Before taking active steps, it is important to understand what exactly happened to your device. Sometimes a visual “snow coat” is a sign of a faulty seal or sensor, and not the normal operation of the system. In any case, competent defrosting will extend the life of the compressor and keep your food fresh for many years.
Is it necessary to defrost a Liebherr with the NoFrost system
The first thing the owner needs to do is determine the type of system defrost function installed in your model. Equipment Liebherr is often equipped with a system NoFrost (or SmartFrost in some modifications), which theoretically eliminates the formation of ice. In such units, moisture is removed through a special drainage, and the evaporator is hidden behind the back wall.
However, even the presence of the NoFrost marking does not provide a 100% guarantee that ice will never appear. If you notice frost on the food or small ice build-ups in the corners of the chamber, this may indicate that the doors are opened frequently or the seal is not tight enough. In such cases, preventive defrosting will still be required, but it will be more of a hygienic nature than a technical necessity.
⚠️ Attention: If a thick layer of ice (more than 3-5 mm) has formed in the chamber with the NoFrost system, this is a signal of a malfunction. Check the integrity of the rubber seal of the door and make sure that the drainage hole is not clogged with crumbs.
For models with full automation of the process, the procedure is simplified to a minimum. You don't have to wait a day for the ice to melt on its own. It is enough to turn off the device, thoroughly wash the internal surfaces and turn it on again. The main thing here is not to use sharp objects to chip ice, as you can damage the hidden cooling circuit.
Preparing the refrigerator for defrosting
Quality preparation is 80% of the success of the entire operation. Before pressing the power button, you must empty the cameras of their contents. The products should be transferred to another cold place, for example, in a bowl of ice or on the balcony (if there is sub-zero temperature) so that they do not have time to spoil.
Next, you should perform a number of preparatory steps that will protect your floor and make cleaning easier. Prepare in advance several terry towels, a basin for collecting water and a soft rag for wiping. It would be a good idea to cover the floor in front of the refrigerator with a thick cloth or a mat.
☑️ Preparing to defrost Liebherr
After the chambers are released, you need to find the temperature regulator. Depending on the model Liebherr, this may be a rotary knob inside the camera or an electronic control panel on the door. Move the regulator to the "0" or "Off" position, and only then unplug the power cord from the outlet.
Step-by-step instructions for defrosting
The process of defrosting a two-chamber refrigerator Liebherr requires sequential steps. Failure to do so may result in water getting into electrical components or damage to the plastic of the internal chambers.
- 🧊 Disconnect the device from the power supply and leave the doors wide open. This will provide an influx of warm air and speed up the melting of the ice.
- 💧 Install containers to collect melting water under the freezer and in the lower part of the refrigerator compartment, if there is no special chute there.
- 🧼 While the ice is melting, start washing the removed shelves and drawers. Use warm water with a mild detergent, avoiding abrasive powders.
- 🔍 Carefully inspect the door seals for dirt. Wipe them with a damp cloth to ensure a tight fit in the future.
It is important not to speed up the ice melting process using artificial methods. The use of hair dryers, heaters, or, especially, boiling water is strictly prohibited. A sudden temperature change can cause cracks in the plastic casing or damage the aluminum evaporator, which will lead to a refrigerant leak and costly repairs.
After the ice has completely disappeared, wipe all surfaces dry. Pay special attention to corners and joints where moisture may remain. Only after thorough drying can you begin assembly and switching on.
Features of defrosting the freezer
The freezer in two-chamber models Liebherr often requires more careful care, especially if it is a system LowFrost. In such models, the evaporator is hidden, but ice can still accumulate on the products and walls if the humidity in the chamber was high.
If you are the owner of a model with an open evaporator (which is found in older or budget series), be extremely careful. Aluminum tubes are very easy to pierce with a knife or spatula. If the ice holds tightly, it is better to wait another 30-40 minutes than to risk the integrity of the system.
| System type | Defrost frequency | Defrost time | Risk of damage |
|---|---|---|---|
| NoFrost | once a year (prevention) | 2-4 hours | Low |
| LowFrost | once every 6-8 months | 6-10 hours | Medium |
| Drip | 1 time every 4-6 months | 10-12 hours | High |
When defrosting the freezer, be sure to remove all drawers. Ice often accumulates under them and around the guides. After defrosting, check if the air circulation holes in the back of the chamber are clogged.
Care of seals and ventilation
During defrosting, ideal access to parts that are normally hidden is provided. The rubber door seal is a key element in keeping the cold out. Over time, grease, crumbs and mold accumulate on it, which impairs its elasticity and tightness.
Wipe the seal with a soft sponge soaked in a weak solution of vinegar or citric acid. This will not only clean the rubber, but also disinfect it. After treatment, you can lubricate the seal with a special silicone grease or glycerin to prevent drying out and cracking.
⚠️ Attention: Never use solvents, gasoline or chlorine-containing products to clean seals. Aggressive chemistry destroys the rubber structure, making it hard and brittle.
Also check the ventilation holes on the back wall of the refrigerator compartment. In models Liebherr with system MultiAirflow air circulates through multiple channels. If they are clogged, the cold will not be distributed evenly, and the compressor will work with overload.
Starting the refrigerator after defrosting
After all surfaces have been washed and wiped dry, you can assemble the unit. Place shelves and drawers in their proper places. Make sure that they stand up straight and do not warp the structure. Now you can plug in the refrigerator.
Do not rush to download products right away. Let the equipment run idle for at least 2-3 hours (for some models up to 6 hours) to reach operating temperature conditions. An indicator on the control panel (usually a flashing snowflake symbol or) will tell you when the temperature has stabilized.
When the refrigerator gets cold, carefully load the food. Try not to put warm food inside, as this will cause a sharp jump in humidity and the formation of condensation, which will again start the icing process.
Common mistakes when defrosting
Even experienced users sometimes make mistakes that can shorten the life of the equipment. One of the most common is trying to pick out ice with a knife. This action is almost guaranteed to lead to a breakdown of the cooling system, the repair of which is often impractical.
Another mistake is turning on the refrigerator ahead of time. If there is a piece of ice left inside or moisture in hidden cavities, when the compressor starts, water may freeze in the drain tube, blocking the outflow of condensate in the future.
Is it possible to defrost a refrigerator in winter on the balcony?
Technically it is possible, but not recommended. Sudden temperature changes when bringing equipment from a cold place into a warm room can cause condensation inside the electronic boards and on the mechanical parts of the compressor. It is better to do this indoors at room temperature.
Ignoring cleaning the rear grille of the condenser (radiator) is also a mistake. While the refrigerator is defrosting, it makes sense to move it away and vacuum the radiator from behind or from below. Dust there reduces heat transfer, causing the motor to work longer.
How long does it take to defrost a Liebherr refrigerator?
The time depends on the thickness of the ice and the temperature in the room. For the NoFrost system, 3-4 hours are enough. For models with manual defrost or LowFrost, the process may take 8 to 24 hours. Do not speed up the process with hair dryers.
What to do if after defrosting the refrigerator does not freeze?
If after turning on and passing for 4-6 hours the temperature does not drop, there may be damage to the circuit or a failure in the electronics. Check if the door is tightly closed. If the problem persists, call a technician.
Is it possible to wash the inside of a Liebherr refrigerator with a steam generator?
The use of a steam generator is not recommended by the manufacturer. Excessive hot steam can damage plastic elements, marking stickers and penetrate the insulation, causing corrosion or a short circuit.
Do door hinges need to be lubricated after defrosting?
Yes, if you notice a creaking or stiff movement. Use food-grade mineral oil or special refrigerator lubricant. Do not use vegetable oil - it will go rancid over time and begin to smell unpleasant.