Modern refrigeration units of the Korean brand LG are famous for their reliability and advanced technologies for preserving the freshness of products. However, even the most advanced units require regular maintenance, including periodic defrosting. Many owners mistakenly believe that the presence of a system No Frost completely eliminates the need for human intervention, but this is not entirely true. Although frost does not accumulate on the evaporator in such models, general cleaning and prevention are still necessary to maintain hygiene and energy efficiency.
In models with a drip system or combined cooling, the defrosting process is a mandatory procedure that cannot be ignored. Ice accumulation in hard-to-reach places can lead to incorrect operation of temperature sensors and increased energy consumption. Therefore, knowing how to defrost a refrigerator LG correctly is a basic skill for every owner of this equipment. In this article we will analyze in detail all the stages of preparation, the process itself and the subsequent launch of the equipment.
It is necessary to understand that each type of design has its own characteristics, and there is no universal approach that would suit absolutely all models without exception. It is important to take into account the age of the device, the type of refrigerant and the design nuances of the storage chamber. Proper defrosting extends the life of the compressor and preserves the properties of the rubber seals. Let's look at where to start preparing for this important procedure.
Determining the type of cooling system in your LG refrigerator
The first step before starting any manipulations is to accurately determine the type of cooling system installed in your unit. Models LG can be equipped with a classic drip system, technology No Frost or a combined option Total No Frost. In drip models, moisture flows down the back wall into a special hole, from where it evaporates, but defrosting is required once every 6–8 months. In systems No Frost ice does not form on the products, but dust and dirt can clog the air circulation channels.
If you have a model with Full No Frostthen physical thawing of the ice in the chamber is not required, as this happens automatically. However, it is still recommended to disconnect from the network for washing and disinfection at least once a year. In combined systems, where there is a “crying” wall in the refrigerator compartment and a “weeping” wall in the freezer compartment, the approach should be a hybrid one. An erroneous determination of the type of system can lead to an attempt to pick out ice where it should not be, or, conversely, to ignoring the overgrowth of the drainage. No Frost, the approach must be hybrid. An erroneous determination of the type of system can lead to an attempt to pick out ice where it should not be, or, conversely, to ignoring the overgrowing of the drainage.
To clarify the characteristics of your specific model LG it is best to look at the technical data sheet or find the sticker inside the chamber. The exact model code will be indicated there, by which you can determine the presence of technology Multi Air Flow or other circulation features. Understanding the structure of your unit will help you avoid mistakes and not damage the fragile elements of the cooling system during cleaning.
⚠️ Attention: Never use sharp objects (knives, screwdrivers) to remove ice, even if it seems unnecessary to you. Damage to the evaporator hidden behind the plastic panel will lead to freon leakage and expensive repairs.
Preparatory stage: disconnecting and releasing the chambers
You should start the defrosting process only after careful preparation, which will take you about 20-30 minutes of active time. The first step is to empty the refrigerator and freezer compartments of all food. If it's winter outside, boxes of frozen food can be taken out to the balcony, after packing them in blankets to maintain the temperature. In the summer, use thermal bags or ask your neighbors to temporarily store some perishable goods.
After emptying the shelves, you need to remove all removable elements: glass shelves, plastic containers, vegetable baskets and ice trays. It is better to immediately soak these parts in warm water and detergent to make subsequent washing easier. Then find a temperature regulator, which in modern models LG can be electronic or mechanical. Set the value to Off or 0to stop the compressor before unplugging it.
Only after this can you unplug the power cord from the power supply. It is strictly forbidden to turn off the refrigerator by simply pulling the cord if it is running under load - this can create an unwanted power surge. The doors of the chambers should be opened wide to ensure maximum flow of warm air. It is recommended to place old towels or flat containers under the bottom of the unit, especially on the freezer side, to collect melting water that may flow through the drainage hole.
☑️ Preparing for defrosting
Natural thawing versus accelerated methods
The safest and recommended by the manufacturer LG defrosting method is natural thawing. This process can take anywhere from 8 to 24 hours depending on the amount of ice accumulated and the room temperature. The main advantage of the method is that the temperature change occurs smoothly, which eliminates deformation of plastic parts and cracking of the metal of the evaporator. Natural defrosting guarantees that the internal mechanisms will not receive stress.
Many users try to speed up the process by using a hair dryer, warm water in bowls, or even heaters. Using a hairdryer is permissible only at a minimum temperature and from a distance of at least 30 cm from the internal walls, but the risk of local overheating of the plastic still exists. Pouring hot water directly onto an ice block in the freezer it is absolutely forbidden - a sharp temperature change can lead to the appearance of microcracks in the tubes of the cooling system, which is fatal for the refrigerator.
If time is running out, you can lay out towels soaked in warm (not hot!) water, and change them as they cool. This will speed up the melting of the ice without being aggressive. It is important to ensure that water does not flow into the technical openings where the electronics are located. For models with No Frost acceleration is not required, since there is physically little ice there, and the main task is washing.
Is it possible to defrost an LG refrigerator with a hair dryer?
Using a hair dryer is possible, but is not recommended by manufacturers. A hot blast of air can melt the thin plastic of the interior panels or damage the door seals. If you nevertheless decide on this method, use only the warm (not hot) air mode, keep the hair dryer at a distance and constantly move it, without staying on one point for more than 3-5 seconds.
Cleaning and disinfecting internal surfaces
While the ice is melting, it’s time to do a thorough cleaning and disinfection. To wash the internal chambers of the refrigerator LG it is best to use a soft sponge and warm soapy water. A solution of baking soda (1 tablespoon per liter of water) or a weak solution of vinegar works great for removing grease and odors. These products are safe for plastic and do not leave toxic residues, which is critical for food storage.
Particular attention should be paid to the drainage hole, which is located on the back wall of the refrigerator compartment. It is through this that the condensate flows into the tray above the compressor. If it is clogged with crumbs or mold, water will begin to accumulate at the bottom of the chamber. You can clean it using a special flexible brush wire included in the kit, or a regular cotton swab. Gently push out the dirt, but do not use excessive force to avoid damaging the tube.
After washing, be sure to wipe all surfaces dry with a clean cloth. Moisture inside the chambers before turning on is unacceptable, as it will instantly turn into an ice crust when the compressor starts. Also be sure to wash and dry all removed shelves and drawers before putting them back. Cleanliness of the rubber seal around the perimeter of the door is the key to tightness; wipe the folds of the elastic with a cotton swab dipped in a soda solution.
| Element | What to wash | What to avoid |
|---|---|---|
| Plastic panels | Soda solution, soft soap | Abrasive powders, chlorine |
| Glass shelves | Warm water, glass cleaner | Steep boiling water (risk of cracks) |
| Sealant | Water with vinegar | Oils, solvents |
| Metal body | Damp cloth | Hard brushes, scrapers |
Correct startup and setup after defrosting
After all surfaces have been thoroughly washed and wiped dry, you can proceed to assembly and launch. Place all shelves, containers and racks in their proper places. Make sure they are secured correctly and do not wobble. Now the refrigerator can be plugged in. Modern models LG are equipped with restart protection, so the compressor may not start working right away - this is normal, the electronics perform self-diagnosis.
It is better to keep the doors closed during the first minutes of operation so that cold air begins to circulate inside a closed circuit. Do not rush to load food! Idling the refrigerator should last at least 2-4 hours, and for a freezer with the function Super Freeze - up to 6 hours. During this time, the unit will reach the required temperature, and the thermostat will turn off the compressor.
If you load food into warm chambers, the compressor will work without stopping, trying to cool a large amount of heat, which will lead to its overload and increased energy consumption. First, let the chambers cool down to the specified parameters, and only then begin to gradually fill them with products. On the first day, do not add large amounts of warm food.
Typical errors and precautions
During the defrosting process, users often make mistakes that can shorten the life of the equipment. LG. One of the most common is trying to knock off the ice with a knife or hitting it with your fist. Mechanical impact on the cooling system, even through a layer of plastic, is fraught with breakdown of the evaporator. Repair in this case will not be economically feasible. Also often overlooked is cleaning the back of the refrigerator where the condenser (grid) is located. The dustiness of this unit worsens heat transfer and makes the motor work harder.
Another mistake is turning on the refrigerator immediately after the last piece of ice has melted. The interior surfaces may appear dry, but there is still moisture in the plastic's pores and hidden cavities. Starting the compressor in the presence of excess humidity will lead to the formation of a new coat of ice at an accelerated rate. Always wipe the cameras dry and ventilate them for 15–20 minutes.
Do not use aggressive chemicals, strong fragrances or oils for washing. Plastic in refrigerators LG is sensitive to solvents and may become cloudy or crack. Oils disrupt the properties of the sealing gum, making it hard and leaky. Taking care of materials will extend the life of your appliance.
⚠️ Attention: If, after defrosting and turning on, the refrigerator makes unusual sounds, does not get cold, or condensation quickly appears on the walls, do not try to repair it yourself. Contact an authorized service center, as the defrost sensor or thermostat may have failed.
Frequently asked questions (FAQ)
How long does it take on average to defrost an LG refrigerator?
The time depends on the amount of ice and temperature in the room. Typically the process takes from 8 to 12 hours. For models with No Frostwhere there is little ice, 3-4 hours are enough for ventilation and washing.
Is it possible to tilt the refrigerator during defrosting to drain water?
Tilting the refrigerator too much or placing it on its side is strictly not recommended. This can lead to oil flowing from the compressor into the refrigerant circuit, which will cause clogging of the capillary tube and damage to the unit.
Is it necessary to lubricate the rubber seal after washing?
Special lubrication is usually not required if the rubber is elastic. However, if it begins to dry out, you can wipe it with a special rubber care product or petroleum jelly, but not vegetable oil, which can oxidize.
What to do if the refrigerator does not freeze after defrosting?
Check that the doors are tightly closed and the temperature setting is set correctly. If the cold does not appear within 5-6 hours, the wiring may have been damaged during defrosting or the sensor may have failed. A call from a specialist is required.
Is it harmful to frequently defrost an LG refrigerator?
Too frequent defrosting (more than once every 3-4 months for drip systems) is not beneficial and creates unnecessary stress on the plastic and seals. Observe the recommended interval, unless emergency icing has occurred.