Many owners of modern household appliances mistakenly rely on the marketing name of the system No Frost, believing that their LG refrigerator will never need defrosting. However, actual operation makes its own adjustments: the accumulation of ice in hidden channels, the appearance of an unpleasant odor, or simply the need for general cleaning require a complete shutdown of the unit. Unlike drip systems, the process here has its own nuances, ignoring which can lead to damage to sensitive electronics.
You need to understand that air circulation LG cameras are more complex than in older models, and stagnation of moisture can cause the formation of ice plugs that block the operation of the evaporator. Even if the ice crust is not visually noticeable, ice crystals may form inside the technological openings, interfering with the normal drainage of condensate. Regular maintenance extends the service life compressor and maintains the energy efficiency of the device at the level declared by the manufacturer.
There is a persistent myth that such models need to be defrosted only when they break down, but service center experts recommend this prophylaxis at least once a year. This is especially true if you notice that the refrigerator has started to operate louder than usual or is less able to maintain the set temperature. A competently carried out procedure will help to avoid expensive repairs and replace calling a technician for independent maintenance.
Why defrost the No Frost system
The main reason why you need to defrost an LG refrigerator with the system No Frostlies in the peculiarities of the evaporator. Although advertising promises no frost on the products, ice still forms, but it happens in a hidden compartment behind the back panel. Over time, the layer of snow on the evaporator thickens, and the standard Heating element (heating element) ceases to cope with its complete removal during short defrost cycles.
As a result, the cooling efficiency drops, and the compressor is forced to work almost without interruption, trying to compensate for heat loss. This leads to increased energy consumption and motor wear. In addition, bacteria and mold can accumulate in the drainage channels, which are then carried by air currents throughout the chamber, spoiling the smell of the food.
⚠️ Attention: If you notice that there is always water at the bottom of the refrigerator or under the vegetable drawers, this is a sure sign that the drainage hole is clogged with ice and requires complete defrosting to clean.
It is also important to take into account the hygiene aspect. Even with antibacterial filters, food microparticles and microorganisms accumulate inside the unit over time. Complete shutdown and washing allow you to clean hard-to-reach places that cannot be reached when the refrigerator is running, keeping microclimate inside the chambers healthy.
Preparation for the defrosting procedure
Before you begin active actions, you need to properly prepare workplace and the unit itself. The first step is to free up the internal space: all products should be removed. If you plan to simply wash the chambers without long downtime, the products can be temporarily moved to bowls with ice or to the balcony (in winter) so that they do not spoil.
Next, you should disconnect the refrigerator from the power supply. It is not enough to simply turn off the button on the case, if there is one - you need to unplug the cord from the outlet. This is critical for safety as water will be used during defrosting and the risk of short circuits must be completely eliminated. It is also recommended to move the refrigerator away from the wall to provide access to the back and base.
☑️ Preparing for defrosting
Do not forget to remove all removable elements: shelves, drawers, egg containers and bottle holders. It is better to wash them separately in the bath or shower with warm water and a mild detergent. While they dry, you will have access to the inner walls of the chambers. Plastic parts should not be washed with hot water, as sudden temperature changes can cause them to crack.
Step-by-step defrosting process
The safest and most correct way to defrost an LG refrigerator is the natural method. After unplugging, leave the refrigerator and freezer doors wide open. Circulating warm air from the room will start the ice melting process. Depending on the thickness of the ice crust and the temperature in the room, this process can take from 4 to 24 hours.
It is strictly prohibited to speed up the process using a hairdryer, hot water or heating devices. Sudden heat can damage the plastic elements of the interior trim, deform door seals, or even lead to rupture of the evaporator tubes where the refrigerant circulates. Repairing such damage is often unprofitable.
During the melting process, water will flow down. In LG models with the system No Frost some of the moisture will go through the drainage hole into a special tray above the compressor, from where it will evaporate. However, if there is a lot of ice, water may flow onto the floor. Prepare absorbent rags in advance or install low sides of towels around the unit.
If you find that the drainage hole is in The refrigerator compartment (usually located on the back wall) is clogged; it must be carefully cleaned after the main ice has melted. To do this, you can use a special brush or soft wire wrapped in cotton wool. Do not use sharp objects to avoid piercing the channel.
Washing and disinfection of internal chambers
After all the ice has melted, the surface cleaning stage begins. To clean the inside of your LG refrigerator, it is best to use a weak solution of baking soda or a special household appliance cleaner. Aggressive chemicals, abrasive powders and chlorine-containing substances can damage the coating of shelves and plastic parts.
Wipe all walls thoroughly, paying special attention to the corners and joints of panels where dirt may have accumulated. Pay special attention to the rubber seals on the doors: bacteria and mold often hide in their folds. Rinse them with warm water and dry them with a soft cloth. If the rubber bands are heavily soiled, you can use a cotton swab dipped in a soda solution.
| Type of contamination | Recommended product | Tool |
|---|---|---|
| Grease stains | Household solution soap | Soft sponge |
| Mold in rubber bands | Vinegar solution (1:1 with water) | Cotton swab |
| Unpleasant odor | Activated carbon or soda | Cloth for wiping |
| Lime in the tray | Citric acid | Brush |
After When cleaning wet, be sure to wipe all surfaces dry with a clean cloth. Remaining moisture can become a source of humidity immediately after switching on, ruining any defrosting efforts. Allow the chambers to “ventilate” for another 15–20 minutes before assembling.
Drying and assembling the unit
Before assembling the refrigerator back, make sure that all surfaces are completely dry. Inspect the bottom of the chambers, corners and drainage hole. If you washed the shelves and drawers, check that they are dry. Wet elements during assembly can again create an environment for the growth of bacteria.
Install all removable parts in their places: shelves, drawers, containers. Make sure they fit snugly and correctly according to the guides. An incorrectly installed shelf can disrupt air circulation, which is critical for the operation of the system No Frost. Check that nothing prevents the doors from closing tightly.
How long should the equipment dry?
On average, after wet cleaning, the cameras take from 30 minutes to 1 hour to dry completely with the doors open in a ventilated room. Do not rush to turn on the equipment until you are sure there is no moisture.
Now you can return the refrigerator to its permanent place. Make sure that there is a gap of at least 5–10 cm between the back wall of the unit and the wall of the room for normal radiator ventilation. Also check that the floor under the legs of the refrigerator is dry and level.
First launch and setting modes
After assembly and installation, connect the refrigerator to the power supply. Modern LG models with digital controls may require time and temperature adjustments. Usually the factory settings are already optimal, but you can adjust them to suit your needs. The recommended temperature for the refrigerator compartment is +3...+5°C, for the freezer -18°C and lower.
Do not load food immediately. Let the refrigerator run idle for at least 2-3 hours (or better yet, leave it overnight) so that it reaches operating temperature and stabilizes the compressor operating mode. Only after this can you begin to fill the chambers with food.
⚠️ Attention: If after turning on you hear a loud knock or hum, or notice that the refrigerator does not cool for 5-6 hours, immediately turn it off and contact the service center.
Pay attention to the indicators on the control panel. If the defrost or error icon lights up, the procedure may not have been completed correctly or there may be a technical problem. In this case, check the user manual for your specific model LG.
Common mistakes when defrosting
One of the most common mistakes is using a knife or other sharp objects to chipping ice. In systems No Frost the evaporator is often located very close to the rear wall of the chamber, and careless movement can puncture the thin tube with freon. Repairing such a system is complicated and expensive.
Another mistake is ignoring the drainage system. Many users defrost the refrigerator but forget to check if there is a drainage hole. As a result, after the first cycle of operation, water begins to accumulate inside again, and ice grows at twice the speed.
Also, do not turn on the unit ahead of time. Starting the compressor with wet walls and warm products will cause the system to work under overload, which can reduce engine life. Patience in this matter will pay off with long and stable operation of the equipment.
Is it possible to defrost a refrigerator on the balcony in winter?
You cannot take a working or just defrosted refrigerator out into the cold. Sudden temperature changes and low temperatures can damage compressor oil and seals. Defrost only in a warm room.
FAQ: Frequently asked questions
How often should you defrost the LG No Frost refrigerator?
It is recommended to completely defrost and wash it once a year. If you notice a deterioration in the quality of cooling, the appearance of ice on food or foreign odors, the procedure should be carried out unscheduled.
Can you use a hair dryer to speed up defrosting?
The use of a hair dryer is not recommended by manufacturers. Hot air can deform the plastic of the inner chamber and damage the seals. It is better to wait for natural thawing to preserve the warranty and integrity of the parts.
What to do if after defrosting the refrigerator does not freeze?
Make sure that it has been turned off for a sufficient time and paused before turning it on (about 2 hours). If the problem persists for more than a day, it is possible that the circuit was damaged during cleaning or the sensor settings were lost - a call to the technician is required.
Do the seals need to be lubricated after washing?
Yes, after drying, the rubber door seals can be treated with a special silicone grease or glycerin. This will preserve their elasticity and ensure a tight fit to the door, which is important for saving energy.
Where should you put the water during defrosting if there is no drain?
Prepare flat containers (baking trays, trays) and absorbent rags in advance. The water will drain by gravity, so it is important to control the process and periodically wipe away puddles so that water does not get on the floor or inside the refrigerator base.