Owners of modern household appliances often wonder whether it is really necessary to defrost the refrigerator LG No Frostif the name of the system contains the prefix “without frost”. There is an opinion that such units do not require human intervention at all, but this misconception can lead to compressor breakdown or the appearance of an unpleasant odor. Despite the advanced air circulation system, moisture still accumulates inside the device, which turns into an ice crust on the evaporator, hidden behind plastic panels.
Regular maintenance is necessary in order condensate drainage system to work smoothly. If you ignore preventive maintenance, the drain hole may become clogged and water will begin to accumulate at the bottom of the refrigerator compartment or, worse, leak under the cabinet. Proper defrosting of an LG refrigerator is not just waiting for the ice to melt, but a set of measures for hygiene and checking the technical condition of the components.
In this guide we will analyze all stages of the process, from preparation to the first turn on after a pause. You will learn why you should not use a hair dryer, how to find hidden drainage, and what actions are strictly prohibited by manufacturers. Compliance with these rules will extend the service life of your LG Electronics and preserve the freshness of products.
Is it necessary to defrost the No Frost system and why
The system No Frost ("no frost") really minimizes the formation of ice on the inner walls of the chamber, but this does not mean a complete absence of ice in designs. The moisture released by the food is deposited on a hidden evaporator located behind the rear panel. Periodically, the automation starts the defrost mode, heating the heating element, and the water flows into a special pan, from where it evaporates.
However, over time, microparticles of food, mold or grease can accumulate in the drain tube, which leads to blockage. In this case, the water does not have time to evaporate and turns into an ice ball, blocking the operation of the fan. That is why defrosting the LG No Frost refrigerator is mandatory at least once a year, even if visually there is no visible ice.
In addition, complete defrosting allows for high-quality sanitization internal surfaces. Odors tend to be absorbed into plastic, and bacteria multiply in hard-to-reach corners where the flow of cold air does not reach. Preventive shutdown helps maintain health and avoid costly repairs to the water drainage system.
⚠️ Attention: If you notice that your LG refrigerator has begun to hum louder than usual or freeze worse, this may be a sign of evaporator freezing. In this case, defrosting must be carried out immediately, without waiting for the planned date.
Preparing the LG refrigerator for defrosting
Before you start the process, you need to properly prepare the equipment. First, empty the cameras of all products. If it's winter outside, you can take perishable goods to the balcony, otherwise use thermal bags or ask your neighbors to temporarily accept the products. This is critically important, since re-freezing thawed meat or fish is strictly prohibited sanitary standards.
Next, turn off the power supply. Unplug the plug from the socket or turn off the machine in the panel. Make sure that the power cord is not stretched or lying in a puddle that may form during the melting process. All removable elements - shelves, drawers, egg trays - must be removed and washed separately with warm water and a mild detergent.
Prepare a place to collect water. Although LG refrigerators have condensate collection systems, if there is severe frosting, water may leak over the edge of the tray. Cover the floor around the appliance with rags or towels, and you can place absorbent rags inside the lower chamber. Also prepare a sponge and a container with warm water for washing in advance.
- 🧊 Empty the refrigerator and freezer compartments of all food and packaging.
- 🔌 Disconnect the appliance from the power supply and unplug it from the socket.
- 🧼 Remove everything removable shelves, drawers and containers for separate washing.
- 🧽 Prepare rags, basins for water and mild detergents.
☑️ Preparation checklist
Step-by-step instructions: how to defrost correctly
The most important stage is the thawing process itself. Many users make the mistake of trying to speed it up with mechanical or thermal effects. For models LG with the system No Frost this is especially dangerous, since the plastic back panel, behind which the evaporator is hidden, is very thin and easily damaged. Leave the refrigerator and freezer doors completely open.
The time for complete defrosting can vary from 10 to 24 hours depending on the room temperature and the thickness of the ice crust. Do not try to close the doors ahead of time, thinking that this will speed up the process - this will disrupt air circulation and slow down the melting of ice in hard-to-reach places. At this time, you can wash the outer surfaces of the case.
After all the ice has melted, you need to thoroughly clean the drainage hole. It is usually located on the back wall of the refrigerator compartment. Use a special soft brush or cotton swab dipped in warm water to remove dirt. This will ensure free flow of condensate in the future.
What to do with the water in the pan?
In some LG models, the water collection pan is located below, behind the base panel. If you notice water there, carefully remove the pan (it may have latches), pour out the liquid and wash it with soap. Don't forget to put it in place before turning it on.
How to wash the refrigerator inside and out
When the ice has melted, it’s time for general cleaning. To clean the interior, use warm water with mild dishwashing detergent or a special household appliance spray. The main requirement is that the product should not have a strong odor, since plastic LG easily absorbs odors, which will then be transferred to the products.
Wipe the surfaces with a soft sponge or microfiber. Pay special attention to the rubber seals on the doors: this is where mold and dirt most often accumulate. Gently fold back the cuff and wipe out the folds. For disinfection, you can use a weak solution of vinegar or citric acid, but after that, be sure to wipe the surfaces clean with water.
The external surface, especially if you have a coated model Smart Inverter coated Anti Fingerprint, should be washed with special products for stainless steel or simply with a damp cloth without abrasives. Scratches on a glossy or metal body are almost impossible to remove, so avoid hard brushes and powders.
| Type of contamination | What to remove | What to avoid |
|---|---|---|
| Greasy stains | Solution soda or dish soap | Acetone, gasoline, aggressive solvents |
| Mold on the gum | A weak solution of vinegar or peroxide | Chlorine-containing bleaches in their pure form |
| Unpleasant odor | Activated carbon, soda, lemon | Air fresheners with chemical fragrance |
| Deposit on the shelves | Warm water with soap | Hot water (can crack the glass) |
What you ABSOLUTELY NOT DO
There are a number of actions that can instantly damage your refrigerator LG. The most common myth is that ice can be quickly broken off with a knife or defrosted with a hairdryer. Do this prohibited. Sharp objects can puncture the thin evaporator tubes that circulate refrigerant. Repair in this case will not be economically feasible.
Using a hair dryer or heater is also dangerous. A sharp temperature change can lead to deformation of plastic panels and the appearance of cracks. In addition, hot air can damage electronic components located near the cameras. Defrosting should only take place naturally at room temperature.
Do not turn on the refrigerator immediately after washing. The internal mechanisms and electrical contacts must be completely dry. If you run the compressor in a humid environment, a short circuit may occur. Also, do not place hot food in a freshly defrosted chamber - this will create unnecessary stress on the system.
⚠️ Attention: Never use a knife, screwdriver or other sharp objects to chip ice. One awkward movement can pierce the cooling circuit, and the gas will escape, making repairs impossible.
Starting and checking operation after defrosting
After you have washed the refrigerator and made sure there is no moisture, reassemble it in the reverse order. Reinstall shelves, drawers, and trays. Make sure all fasteners snap into place correctly. Now you can connect the device to the network. Pay attention to the indicators on the control panel LG.
For the first few hours, the refrigerator will work in enhanced mode, reaching the set temperature. Don't load it with products right away. Let the equipment run idle for at least 2–4 hours to allow the temperature to stabilize. This is especially important for models with linear inverter compressor.
Check for any extraneous noise or vibration. Make sure that the doors close tightly and that the magnetic tape fits all the way around. If after defrosting you notice water under the refrigerator or a lack of cold, this may indicate a clogged drain or a more serious problem.
Frequent questions and answers (FAQ)
How long does it take to defrost an LG No Frost refrigerator?
Usually the process takes from 10 to 24 hours. The exact time depends on the temperature in the room and the amount of ice. Take your time, let the ice melt on its own.
Is it possible to defrost the refrigerator without unplugging it?
No, you cannot. For safety and correct operation of the electronics, it is necessary to completely de-energize the device before starting any maintenance procedures.
Why did the smell of plastic appear after defrosting?
This could be a residual smell of detergent or a reaction of the plastic to cleaning. Ventilate the chambers with the doors open for several hours. If the smell does not go away, check whether water has got on the heating elements.
Do you need to lubricate the rubber seals after washing?
Special lubrication is usually not required if the rubber bands are elastic. However, you can wipe them with glycerin to maintain softness and prevent drying out, especially if the air in the room is dry.
What to do if the water does not go into the drainage hole?
Take a soft wire or brush and carefully clean the channel. You can also pour a little warm water into it using a syringe without a needle to push through the blockage.