Modern refrigerators of the South Korean brand LG are famous for their reliability and advanced cooling technologies, but even the most advanced models require periodic maintenance. Many owners mistakenly believe that the presence of a system No Frost completely eliminates the need for defrosting, but this is not entirely true. Although frost does not form on the internal walls of the chamber, condensation and dust accumulate over time in the air circulation system and in the drainage channels, which can lead to an unpleasant odor or a decrease in the efficiency of the compressor.
The process of turning off equipment for hygiene procedures or removing ice jams requires compliance with a certain algorithm of actions so as not to damage expensive equipment. LG refrigerator, like any complex household appliances, it is sensitive to sudden temperature changes and mechanical stress on the evaporator. Incorrect actions can lead to depressurization of the circuit or failure of the electronics, so it is important to clearly understand how the LG refrigerator is defrosted depending on the cooling system installed in it.
In this article we will analyze in detail the differences between drip system and complete No Frost, we will determine the optimal frequency of the procedure and consider safe methods for accelerating the melting of ice. You will learn why you should not use sharp objects to chip away ice and how to properly prepare the unit for long periods of downtime. Following these recommendations will extend the life of your LG and keep food fresh for many years.
⚠️ Attention: If your refrigerator is equipped with a system Smart Diagnosis or connected to Wi-Fi, before defrosting, it is recommended to reset the active compressor timers through the application, if such an option is available in your model.
Determining the type of cooling system in an LG refrigerator
The first step before starting any manipulations is to accurately determine the type of cooling system installed in your device. Models LG can be equipped with three main options: a traditional drip system (Direct Cool), a full system No Frost or a combined Total No Frost option. This directly determines whether you need to wait for the ice in the freezer to thaw or just wash the shelves.
In devices with a drip system, moisture on the back wall of the main chamber freezes and periodically thaws by gravity, going into the drainage hole. As a rule, an ice crust forms in the freezer compartment of such models, which must be removed manually. On the contrary, equipment marked No Frost is equipped with a special evaporator hidden behind a plastic panel and a fan that distributes dry cold, preventing the formation of visible ice on products and walls.
To avoid guessing, look at the technical data sheet of the device or find a sticker with the model on the inner wall of the refrigerator compartment. Often the system type is indicated directly in the model name or on the front control panel. Understanding the design of your unit will help you avoid unnecessary actions and correctly plan equipment downtime.
- 🧊 Drip system: requires defrosting the freezer compartment every 4-6 months, the refrigerator compartment defrosts automatically.
- 💨 No Frost: requires preventive defrosting of the entire device once a year to clean hidden channels and disinfection.
- 🔄 Combined: refrigerator compartment with drip cooling, freezer - No Frost, requires maintenance of the freezer as needed.
Preparation refrigerator for defrosting
Quality preparation is half the success of the entire operation. Before disconnecting LG refrigerator from the network, you must free the cameras from the products. If you plan to quickly defrost for cleaning, food can be temporarily placed in a cool place or in thermal bags with ice. For long-term shutdown, for example, during a move or renovation, all shelves and drawers must be removed.
It is important to correctly remove the internal elements. Glass shelves and plastic containers LG often have special guides. Do not use excessive force: if the shelf does not come out, you may not have removed the stopper or did not understand the principle of fastening. Plastic becomes brittle at low temperatures, so it is better to remove the boxes after they have warmed up a little, or do it very carefully.
After releasing the chambers, turn off the power supply. Unplug the cord from the outlet by grasping the plug itself, not the wire. If the refrigerator is built-in, provide access to the back wall for air circulation, if possible. Also turn off the water supply if your model is connected to the water supply to operate the ice maker or dispenser.
☑️ Preparing for defrosting
Natural defrosting: a safe method
The most gentle method that is recommended engineers LG, - this is natural thawing. This method takes longer, but ensures that no part of the inner contour is damaged. After unplugging, simply leave the refrigerator doors open. The process can take from 3 to 24 hours depending on the amount of ice and the temperature in the room.
During natural defrosting, the resulting water will flow into special gutters and through the drainage hole into a container located above the compressor at the back of the device. However, if there is a lot of ice, the system may not cope and water will pour onto the floor. Therefore, it is recommended to place rags or install flat trays under the bottom of the refrigerator and in front of the threshold of the chambers.
It is strictly forbidden to use sharp objects to speed up the process. The aluminum evaporator, even if it is hidden behind plastic in models No Frost, is very easy to pierce with a knife or screwdriver. Repairs after such an “acceleration” will be expensive, since the circuit will need to be re-welded and refilled with freon. Patience in this matter is the key to the longevity of the equipment.
⚠️ Attention: Do not turn on the refrigerator while there are ice blocks inside or water in the drainage system. Moisture on the electrical contacts or operation of the compressor with ice remaining in the evaporator can cause a short circuit.
How long does defrosting take?
The time depends on the temperature in the room and the thickness of the ice. On average: 3-5 hours for No Frost prevention, 10-24 hours for complete thawing of an old freezer with a thick layer of ice.
Accelerating the process: acceptable and prohibited methods
If time is running out, owners often look for ways to get rid of ice faster. There are safe methods that will help defrost your LG refrigerator faster without harming the equipment. The basic principle is to increase the ambient temperature inside the chambers without direct contact with the heating elements.
One of the effective ways is to use containers with warm water. Pour warm (not boiling water!) water into bowls and place them on shelves or the bottom of the chambers. The steam from the water will gently warm the space, accelerating the melting. The doors should be closed to create a greenhouse effect; they should only be opened to replace cooled water.
You can also use a fan to direct a flow of warm room air inside the open refrigerator. This will enhance convection and shorten the procedure time. However, the use of hair dryers, heaters or heating pads inside the cells is strictly prohibited. Local overheating of the plastic can lead to its deformation, and the contact of hot water on the cold glass of the shelf will cause it to crack.
- ✅ You can: Bowls with warm water, a fan, soft napkins for wiping.
- ❌ Don't: Hair dryer (melts plastic), knife/scraper (pierces evaporator), boiling water (thermal shock for glass and plastic).
- ⚠️ Dangerous: Defrost sprays (may contain aggressive chemicals that are harmful to food chambers).
Caring for the drainage system and removing blockages
One of the main reasons why you have to defrost LG refrigerator more often than not, the drainage hole is clogged. During operation, crumbs, mold and mucus get there, forming a plug. The water stops flowing, freezes and turns into an ice block at the bottom of the chamber or under the vegetable boxes.
To clean, use a soft wire with a melted end or a special brush. Carefully insert the tool into the hole on the back wall of the refrigerator compartment (usually located above the groove) and make several forward movements. After this, pour some warm water from a syringe into it to flush the channel.
If you find that the water collection tray located above the compressor at the back is overfilled or emits an unpleasant odor, it also needs to be removed and washed. In models LG it is often accessed by removing the lower rear panel. A dirty tray is a source of bacteria and the reason for the appearance of water on the floor under the refrigerator.
Frequency of defrosting and maintenance table
Many users ask the question: how often do you need to defrost appliances? For models with No Frost once a year is enough for general cleaning and disinfection. Drip systems require attention to the freezer every six months, and more often if the humidity in the room is high. Ignoring these deadlines leads to an increase in energy consumption, since the ice crust acts as a heat insulator, forcing the compressor to work harder.
Below is a table that helps you navigate the maintenance schedule depending on operating conditions and type of device. Remember that frequent opening of doors and adding warm food accelerates the formation of condensation.
| System type | Refrigerator compartment | Freezer compartment | Signs of necessity |
|---|---|---|---|
| No Frost | once a year (cleaning) | 1 time a year (cleaning) | Odor appearance, reduction of cold |
| Drip | Automatic | 1 time every 4-6 month | Ice layer > 5 mm, difficult to close |
| Combi | Automatic | 1 time every 6 months. | Ice in freezer |
| Old models | As it becomes overgrown | As it becomes overgrown | Visible ice on the walls |
Completion of the process and first start-up
After all the ice has melted and the surfaces have dried, it is necessary to thoroughly wipe the internal chambers. Use a weak soda solution or a special refrigerator cleaner. Aggressive chemicals and abrasives cannot be used, as they can damage the plastic coating and rubber door seals LG.
Pay special attention to the rubber seals. Dirt in the folds breaks the seal, causing warm air to enter the chamber, and the refrigerator begins to work overload. Wipe them with a damp cloth and make sure there are no cracks or creases.
You can turn on the unit only after all surfaces have completely dried and all removable elements have been collected. Leave the refrigerator empty for 1-2 hours. During this time, it will reach the required temperature, and only after that you can load the products. Sharp loading with warm food will cause the compressor to wear out.
⚠️ Attention: If, after defrosting and turning on, the refrigerator does not begin to cool or makes unusual sounds, do not try to repair it yourself. Contact an authorized service center, as there may be a freon leak or an electronics failure.
Why does the refrigerator hum louder after defrosting?
After a long period of inactivity and defrosting, the compressor may work harder to gain temperature. The body could also shift. If the noise does not subside after a day, diagnostics is needed.
Frequently asked questions (FAQ)
Is it possible to defrost an LG refrigerator with a hairdryer?
Using a hairdryer is highly not recommended. Hot air can deform the plastic parts of the internal lining, and drops of molten plastic getting on the heating element of a hair dryer or inside the equipment is dangerous. In addition, a sharp change in temperature can lead to cracks in the glass of the shelves.
Is it necessary to defrost an LG refrigerator with the No Frost system?
Yes, it is necessary, but not to remove ice (it is not there), but for hygienic cleaning, disinfection and cleaning of drainage channels. This is also necessary if you are leaving for a long time and plan to disconnect the device from the network.
What to do if water from the refrigerator is pouring onto the floor?
Most likely, the drainage hole in the refrigerator compartment is clogged. It is necessary to clean it with a soft wire or brush and rinse with warm water. Also check the integrity of the water drainage gutter.
How to quickly defrost an LG freezer?
The fastest safe way is to place bowls of hot water inside and close the door for 10-15 minutes, then repeat. Using a fan will also speed up the process. Mechanical chipping of ice is prohibited.
How long after defrosting can you load food?
It is recommended to wait 1-2 hours after turning on for the refrigerator to reach operating temperature conditions. Loading warm food immediately after switching on will increase the cooling time and the load on the compressor.