Modern brand refrigerators LGequipped with No Frost or Total No Frostsystems are often perceived by users as devices that do not require any maintenance. However, even the most technologically advanced models require periodic cleaning and maintenance to maintain efficiency and hygiene. Ignoring this rule can lead to the appearance of unpleasant odors, the growth of bacteria, and even the failure of important components of the unit.
The defrosting process is not just waiting for the ice to melt, but a set of procedures that require compliance with certain time intervals and safety rules. If you notice that cooling has become less efficient, or a noticeable layer of frost has appeared on the walls of the chamber, despite the declared automatic defrosting system, it's time to do a thorough cleaning. The right approach will extend the life of the compressor and evaporator.
In this article we will analyze in detail the algorithm of actions that is relevant for most models of the Korean brand. You'll learn why you shouldn't use sharp objects to chip ice, how to quickly dry out the interior, and what to do with food during the process. Following the instructions will help you avoid typical mistakes that inexperienced users often make when servicing refrigeration equipment.
Preparing for the defrosting procedure
The first and most important step is to completely disconnect the device from the electrical network. It is not enough to simply turn off the button on the control panel; you must remove the plug from the socket. This will ensure your safety and allow the control system refrigerator to completely reset the current operating cycles. If the model has a button locking function, it should also be deactivated before turning off the power.
Next, you need to empty the chambers of the contents. All products should be removed and sorted. It is better to place frozen semi-finished products, meat and fish in thermal bags or wrap them in several layers of newspapers and blankets so that they do not have time to defrost while the main process is in progress. Vegetables and fruits that do not require freezing can be temporarily moved to a cool place or left in closed cabinets if the room is cold enough.
⚠️ Attention: It is strictly forbidden to use a hair dryer, fan heater or other heating devices to speed up the melting of ice. A sudden temperature change can lead to cracks in the plastic housing of the evaporator or damage the rubber seals, which will lead to expensive repairs.
After the chambers are freed, you need to prepare a place for collecting water. Find a few old towels, rags or special absorbent mats in advance. Water will not only drain from the main drainage hole, but may also leak from under the vegetable drawers. Cover the floor around unit rags to avoid flooding the kitchen or damaging the floor covering.
☑️ Preparing for defrosting
Natural defrosting and removing moisture
Leave the refrigerator and freezer doors open. The time required for the ice to completely melt depends on the thickness of the ice and the room temperature. On average, this process takes from 3 to 5 hours. Do not try to forcibly tear off pieces of ice with your hands - this can lead to injury or damage to fragile elements of the cooling system While the ice is melting, you can start washing the removable elements. It is best to remove shelves, drawers, trays and containers and wash them in the bathtub or sink with warm water and a mild detergent. The use of aggressive chemicals containing chlorine or abrasive particles is unacceptable, as the plastic may become cloudy or crack. Rinse all parts thoroughly and let them dry..
While the ice is melting, you can start cleaning the removable elements. It is best to remove shelves, drawers, trays and containers and wash them in the bathtub or sink with warm water and a mild detergent. The use of aggressive chemicals containing chlorine or abrasive particles is unacceptable, as the plastic may become cloudy or crack. Rinse all parts thoroughly and let them dry.
When the main body of ice melts, water will remain inside the chambers. It must be carefully collected with a sponge or soft cloth. Pay special attention to the drainage hole, which is usually located on the back wall of the refrigerator compartment. If it is clogged, water will accumulate at the bottom. You can clean the channel using a special brush or soft wire wrapped in cotton wool.
What to do with melt water?
Melt water may contain dust particles, bacteria and detergent residues. It is not recommended to use it for repeated washing or watering indoor plants. It is better to immediately pour it down the drain.
Disinfection and elimination of odors
After the moisture has been removed, the disinfection stage begins. Even if there is no visible contamination, microorganisms could multiply inside. For treating internal surfaces, a baking soda solution (one tablespoon per liter of warm water) or a weak vinegar solution is ideal. These products are safe for food and effectively destroy bacteria.
Apply the solution to a soft cloth and wipe all the internal walls, ceiling and bottom of the chambers. Pay special attention to the rubber seals on the doors. Dirt and mold often accumulate in the folds of the seals, which are difficult to notice during a quick inspection. Carefully bend the rubber and wipe the hidden cavities with a cotton swab dipped in a disinfectant solution.
If foods with a strong odor (fish, smoked meats) were previously stored in the refrigerator, regular washing may not help. In this case, use activated carbon. Crush 10-15 tablets, scatter the powder into saucers and leave in closed chambers for a day. An alternative can be freshly ground coffee or a cut apple, which perfectly absorb extraneous aromas.
Drying and assembling the refrigerator
A critically important stage that is often ignored is complete drying. It is impossible to turn on LG refrigerator with wet walls, as this will lead to instantaneous formation of new ice and increased load on the compressor. Leave the doors open for another 30-60 minutes after wet cleaning to allow any remaining moisture to evaporate naturally.
Make sure that all removable elements are completely dry. Damp shelves or drawers that are placed back will create increased humidity inside the enclosed space. Wipe them dry with a paper towel before installing them in their original places. Check that the drainage hole is free and not blocked by structural parts.
Assemble the refrigerator in the reverse order. Install shelves, containers and drawers. Check the reliability of their fixation - they should fit tightly and not wobble. If your model has special guides or stops, make sure they fit correctly. Incorrect installation of boxes can block air circulation.
First start-up and temperature conditions
Now you can connect the device to the network. After switching on, do not rush to load products. Let the refrigerator run idle for at least 2-3 hours. During this time, the unit will reach the required temperature, and the automation will stabilize the operating parameters. Indicators on the control panel LG will tell you when the mode has been reached.
For models with electronic control, it is recommended to check the settings. Make sure that the temperature in the refrigerator compartment is set at around +3...+4°C, and in the freezer -18°C or lower. If you have previously used Vacation or Eco mode, reset the settings to standard settings for everyday use.
⚠️ Attention: Do not load the cameras with food immediately after turning them on. The heat load of other products will cause the compressor to work hard, trying to quickly cool a large volume. Load food gradually, in small portions.
Comparison of defrosting systems in LG models
Understanding the type of defrosting system of your device helps to plan care correctly. In the line LG there are different technologies, and the requirements for them differ. Below is a table that helps determine the frequency of procedures depending on the installed system.
| Type of system | Principle of operation | Frequency of defrosting | Care features |
|---|---|---|---|
| Manual | Ice freezes on the walls | Once every 4-6 months | Requires complete shutdown and manual removal of ice |
| Drop System | Drip (refrigerator compartment only) | Once every 6-12 months | Freezer defrost manually, refrigeration chamber - preventively |
| No Frost | Forced air circulation | Once every 1-2 years | Ice is not visible, but drainage cleaning and disinfection are required |
| Total No Frost | Automatic in both chambers | Once every 1-2 years | Minimum care, but ventilation ducts need to be checked |
Even if you have a modern model with markings Total No Frost, this does not mean that ice does not form at all. It forms on the hidden evaporator and is removed automatically, but over time the drainage system can become clogged with debris or mold. That is why preventive defrosting and cleaning are necessary for any device, regardless of the year of manufacture and technology.
Frequent errors during maintenance
Many users, trying to speed up the process, take actions that can fatally affect the equipment. The most common mistake is using knives, blades or screwdrivers to chip ice. The plastic of the evaporator in refrigerators LG is very thin, and a breakdown of the refrigerant tube will lead to a freon leak. Repair in this case will be difficult and expensive.
Another mistake is ignoring seals. Dirty or damaged rubber impairs the seal of the chamber. Warm, humid air enters the refrigerator, which causes the compressor to work without interruption, and ice forms on the walls again. Regularly check the condition of the seals and replace them if necessary.
Also, you should not turn on the unit immediately after washing, without waiting for it to dry completely. Residual moisture will turn into an ice crust during the first cooling cycle. This will not only reduce operating efficiency, but can also lead to sticking of drawers and shelves with the walls of the chamber.
Is it possible to defrost an LG refrigerator without unplugging it?
No, it is not possible. For correct operation of the defrosting system and user safety, the device must be completely de-energized. A running compressor will try to compensate for the heat entering when the door is open, which will lead to its overheating.
How long should a defrosted refrigerator stand before turning on?
The optimal waiting time after washing and drying is about 1 hour. This is necessary to evaporate micro-particles of moisture and stabilize the temperature of the internal components to room temperature. If you also moved the refrigerator, let the oil in the compressor drain back (15-20 minutes) before starting.
What to do if after defrosting the refrigerator does not freeze?
If more than 5-6 hours have passed after turning it on and there is no cooling, check whether the doors are tightly closed and whether food is blocking the air channels. If the problem persists, perhaps moisture has entered the system or an electronics failure has occurred, which requires calling a technician.
Do door hinges need to be lubricated after defrosting?
Yes, this is a good practice. After prolonged washing and sitting with the doors open, the lubricant in the hinges could wash out or dry out. A drop of silicone grease will ensure smooth movement of the doors and prevent squeaks in the future.