The question of how to defrost an LG No Frost refrigerator often confuses owners, because many mistakenly believe that systems with “no frost” technology do not require human intervention at all. Indeed, automation takes on the main job of removing moisture, but maintenance is still necessary. Even in modern models, such as LG DoorCooling+ or classic two-chamber units, over time, ice plugs may accumulate in the drainage system or ice may form in places where the seals do not fit tightly.
Proper defrosting is not just a way to get rid of excess ice, but an important preventive measure to extend the life of the compressor and fans. Ignoring this procedure may lead to the refrigerator will stop freezing or starting to make extraneous sounds. In this article we will analyze all the nuances of the process, from preparation to the first turn on, so that your LG works like new.
It is worth immediately noting that the algorithm of actions may differ slightly depending on the specific series of the device. However, the basic principles remain the same across the entire brand line. The main thing is to be consistent and not rush things using aggressive methods.
Why ice forms in No Frost and when defrosting is needed
Technology No Frost implies forced circulation of air that passes through the evaporator, where it is cooled and dehumidified. Under ideal conditions, moisture should escape through the drainage hole. However, in reality everything is more complicated. Microscopic food particles, dust and lint clog the drainage channel over time, which is why the condensate does not have time to drain and freezes, forming an ice “coat.”
⚠️ Attention: If you notice that a layer of ice more than 3-5 mm thick has appeared on the back wall of the chamber, or water has begun to accumulate at the bottom of the refrigerator compartment, this is a sure signal that an unscheduled repair is necessary. defrosting.
In addition, ice can build up due to frequent opening of the door or loose closure. In such cases, the defrost system simply cannot cope with the volume of incoming moisture. This is especially true for models with Linear Coolingwhere the temperature regime is maintained very accurately, and any violation of the tightness immediately affects the operation of the evaporator.
Another reason may be a malfunction of the defrost sensor or heating element, but before calling a technician, you should try to carry out a complete manual defrost. Often this helps reset the error in the electronic control module and melt the ice jam.
Preparing the refrigerator for the defrosting procedure
Before To begin active actions, it is necessary to properly prepare the unit. First, empty the chambers of food. It is better to put all perishable products in bowls with ice or take them out to the balcony if the temperature there is low. Deep-frozen products can be wrapped in blankets - this will keep them cold for several hours.
Next, you should disconnect the device from the power supply. Unplug the cord from the outlet. This is a critical step as the compressor and heating elements must not be operated during defrosting. After disconnecting, remove all removable elements: shelves, drawers, containers for vegetables and bottle holders.
- 🧊 Place food in prepared containers with refrigerant or ice.
- 🔌 Unplug the power cord completely from the outlet.
- 🚿 Remove all shelves, glass inserts and plastic drawers.
- 🚪 Leave the refrigerator and freezer doors wide open.
It is better to immediately wash glass shelves and plastic parts with warm water and a mild detergent and set them aside. While they dry, you can work on the inner walls of the chambers. Don't forget to also prepare several large terry towels or absorbent rags, since there can be a lot of water.
Step-by-step instructions: how to quickly and safely defrost
The safest and recommended by the manufacturer LG method is natural defrosting with the doors open. This method takes the most time (10 to 24 hours depending on the amount of ice), but ensures that you do not damage the fragile plastic or evaporator tubes.
Place prepared towels on the floor in front of the refrigerator and on shelves inside to absorb melting water. If the ice crust is very thick, you can speed up the process by placing containers with hot (but not boiling!) water inside the chambers. Change the water as it cools.
⚠️ Attention: It is strictly prohibited to use hair dryers, heaters or sharp objects (knives, screwdrivers) to chip ice. A sharp temperature change can lead to cracks in the plastic housing of the evaporator, and mechanical stress can lead to a puncture of the freon circuit.
During the melting process, regularly wipe the walls and change wet rags. Pay special attention to the bottom of the refrigerator compartment, where the drainage hole is located. It needs to be cleaned with a brush or soft wire to ensure free flow of water.
☑️ Safe defrosting checklist
Cleaning the drainage system and removing odors
After the main body of ice has melted, it is necessary to thoroughly clean the drainage channel. In models LG it is often located deep in the back wall. For cleaning, you can use a special flexible brush that comes with the kit, or a piece of soft cloth twisted into a rope.
Wipe all internal surfaces with a weak soda solution or a special refrigerator cleaner. This will help remove not only dirt, but also bacteria that cause unpleasant odors. Rinse the surfaces thoroughly with clean water and wipe dry.
| Cleaning area | Mean | Tool | Frequency |
|---|---|---|---|
| Internal walls | Soda solution (1 tbsp per 1 liter of water) | Soft sponge | When defrosting |
| Door seals | Warm soapy water | Microfiber cloth | Once a month |
| Drainage hole | Clean water | Syringe or bulb | When defrosting |
| Outer housing | Stainless steel cleaner | Napkin | As it gets dirty |
Remember to wash and dry all removed shelves and drawers before installing them back. If you leave them wet, when you first turn them on, condensation or even a thin crust of ice may form on them.
What to do if the water does not drain?
If the water is standing in the tray and does not drain into the drain, an ice plug may have formed deep in the channel. Try to carefully pour in a little warm water (no more than 50 degrees) from a syringe without a needle to melt the mash.
Rules for the first start after defrosting
When all cleaning procedures are completed and you are convinced that the inside is dry and clean, you can assemble the refrigerator. Replace all shelves, containers and drawers. Make sure that they fit tightly and correctly, according to the markings on the walls.
Now you can plug the device into the network. However, don't rush to load the products. Let the refrigerator idle for at least 2-4 hours. During this time, the unit will reach the required temperature, and the automation will stabilize the operation of the compressor and fans.
For models with a display and smart functions Smart ThinQ after switching on, a reset or recalibration may be required. This usually happens automatically, but it’s worth checking if the indicators are lit normally.
- ✅ Make sure that the inside is dry and there are no puddles.
- ✅ Shelves and drawers are installed correctly.
- ✅ The doors close tightly.
- ✅ The device is plugged into a separate grounded socket.
Only after the refrigerator has been empty for several hours and has reached the set temperature, you can add food. Place items that do not require deep freezing first, and then gradually fill the freezer.
Typical errors and precautions
Many users, wanting to speed up the process, make mistakes that can cost expensive repairs. The most common of these is using a knife or ice pick to chip away at the ice. In systems No Frost the evaporator is often hidden behind a plastic panel, but even a careless blow to the chamber wall can damage the hidden tubes.
Another mistake is ignoring the instructions for defrosting time. If you turn on the refrigerator while there is still ice inside, water may get on the electrical contacts or in the fan operating area, causing a short circuit or damage to the motor.
⚠️ Attention: Never use chemical solvents, acetone or abrasive powders to clean the internal surfaces. They can damage the antibacterial coating and plastic, making it brittle.
Also, you should not turn on the device immediately after defrosting if it was in a cold room. Let it warm up to room temperature to avoid condensation on the electronic boards.
Frequently asked questions (FAQ)
How long does it take to defrost an LG refrigerator No Frost?
Usually the process takes from 10 to 24 hours. The exact time depends on the thickness of the ice and the room temperature. Do not try to speed up the process artificially if you do not want to risk the integrity of the plastic.
Do you need to defrost the refrigerator if there is no ice on the walls?
Yes, it is recommended to carry out preventive defrosting and washing at least once a year. This is necessary for hygiene, cleaning the drainage system from bacteria and checking the operation of the seals, even if there is no visible ice.
Is it possible to use a hair dryer to speed up defrosting?
The use of a hair dryer is not recommended by manufacturers. Hot air can deform the thin plastic of the inner chamber or damage the seals. It is better to use containers with warm water.
What to do if after defrosting the refrigerator does not freeze?
Check whether the doors are tightly closed and whether the shelves are installed correctly. If the temperature does not decrease within 4-5 hours, there may be a power surge or damage to the system during defrosting. In this case, contact the service center.
How often should you clean the drainage hole?
It is advisable to clean the drainage hole every time it is completely defrosted (once every 6-12 months). This will prevent blockages and the appearance of an unpleasant odor inside the chamber.