Owners of modern household appliances are often faced with a situation where a layer of ice appears on the walls of the chamber or in the freezer compartment, despite what is stated by the manufacturer system Total No Frost. Many users mistakenly believe that such models do not require defrosting at all, but regular maintenance is necessary for the correct operation of the compressor and air circulation. If you notice that LG it has stopped cooling food effectively or that freezing has begun to prevent the doors from closing, it’s time to carry out a complete defrosting.
The process of restoring the unit’s functionality requires compliance with certain rules so as not to damage the complex ventilation system and electronic sensors. Unlike old models with a drip system, it is important not just to let the ice melt, but also to properly prepare the device for this process. Defrosting this is not just waiting, it is a set of measures to care for your equipment that will extend its service life.
In this article we will analyze in detail the algorithm of actions, typical errors and technical nuances of servicing refrigerators LG. You will learn why even the system No Frost can become overgrown with ice and how to safely return the unit to factory efficiency parameters without calling a technician.
Why ice appears in Total No Frost
The system Total No Frost (or No Frost) implies the absence of ice due to constant circulation of dry cold air. However, ice can still appear for several reasons related to operation or component failure. Most often, the problem lies in a violation of the tightness of the chambers or clogging of the drainage channels.
If the rubber seal on the door is worn out or does not fit tightly, warm, moist air enters. When meeting the cold flow from the evaporator, the moisture instantly crystallizes. Also a common cause is clogging of the drainage hole, through which the condensate must go into a special tray above the compressor.
Other factors contributing to freezing:
- ❄️ Frequent or prolonged opening of doors, especially in summer with high humidity.
- ❄️ Loading hot water into the chamber or warm products that emit steam.
- ❄️ Malfunction of the defrost sensor or heating element of the evaporator, due to which the ice does not have time to melt automatically.
⚠️ Attention: If, after complete defrosting and cleaning the drainage, the ice builds up again within 2-3 days, the problem may lie in a freon leak or a breakdown of the electronic control module. In this case, diagnostics by a specialist is required.It is important to understand that even in systems No Frost a small frost forms on the evaporator (which is hidden behind a plastic panel) during the operation cycle, but it should be removed automatically. If this process is disrupted, the ice blocks the ventilation ducts and the cold stops flowing into the chamber.
📊 How often do you defrost the refrigerator?Once every six monthsOnce a yearOnly when ice appearsNever defrostedPreparing the LG refrigerator for defrosting
Before starting the procedure, you must properly prepare the unit to avoid spoilage of food and damage to internal surfaces. The first step should always be to completely unplug the device. Unplug the plug from the socket - this will protect you and the refrigerator’s electronics from power surges.
Next, you should empty the chambers of the contents. All products must be removed. If defrosting is planned and quick, the food can be transferred to bowls with ice or to another working refrigerator. If long-term maintenance with washing is planned, it is better to temporarily move supplies to a cool place.
Shelves, drawers and removable plastic elements also need to be removed. They are easier to wash separately under running water using mild detergents. The glass of the shelves LG is sensitive to temperature changes, so do not place cold shelves directly under hot water.
Preparatory checklist before starting:
- 🔌 Unplug the power cord from the outlet.
- 🥩 Remove all products and pack them for storage.
- 🧊 Remove all removable shelves, containers and egg trays.
- 🧼 Prepare a soft cloth, a basin for water and a mild detergent.
☑️ Preparing for defrosting
Done: 0 / 4Step-by-step instructions: how to defrost correct
The most important stage is the defrosting process itself. In models LG Total No Frost it is strictly forbidden to use sharp objects (knives, screwdrivers) to chip ice. Mechanical impact can damage the thin evaporator tubes, resulting in an immediate refrigerant leak and costly repairs.
Leave the refrigerator and freezer doors completely open. To speed up the process, you can place a container with warm (not boiling water!) water inside. The steam from the water will help soften the ice crust faster. The duration of the procedure is usually from 10 to 24 hours, depending on the thickness of the ice.
When the main body of ice has melted, it is necessary to thoroughly wipe all surfaces. Pay special attention to the drainage hole at the rear of the refrigerator compartment. It can be cleaned with a special soft brush or a cotton swab dipped in warm water.
Table of defrosting stages:
Stage Action Time 1. Disconnection Removing from the network, opening doors 5 minutes 2. Waiting Natural melting of ice 10-24 hours 3. Cleaning Removing water, wiping, cleaning drainage 30-40 min 4. Assembly Installing shelves, connecting to the network 15 min Can a hair dryer be used?
Use of a hair dryer is allowed only at a minimum temperature and from a long distance. A directed jet of hot air can deform the plastic housing or damage temperature sensors. It is better to use the natural method or containers with warm water.
After the moisture has been removed, wipe the internal surfaces with a dry, clean cloth. Make sure that there is no water left in the recesses and joints of the panels. Only after this can you install the shelves and containers in their places.
Mistakes during defrosting and how to avoid them
Many users make mistakes that negate all efforts or lead to breakdowns. The most common mistake is trying to speed up the process with a knife or blade. Evaporator in refrigerators LG is located very close to the back wall, and it is extremely easy to pierce its aluminum surface.
Another mistake is turning on the refrigerator immediately after washing. If there is water left inside or condensation on the electronic components, a short circuit may occur when voltage is applied. Let the device stand turned off with the doors open for another 30-60 minutes after the final wipe.
Frequent errors during maintenance:
- 🚫 Using abrasive sponges and aggressive chemicals (chlorine, acetone).
- 🚫 Casting boiling water directly onto the ice block (risk of cracking the plastic).
- 🚫 Closing the doors during defrosting (the process will take days).
⚠️ Attention: Never pour water directly onto the back wall where the vents are located. Water can flow inside the case, get on the fan or electronic module, causing corrosion of the contacts.Care for the No Frost system after defrosting
After successful defrosting, it is important to start the refrigerator correctly. Plug in your device, but don't download any products yet. Let it idle for 2-3 hours. During this time, the unit will reach the required temperature, and the automation Total No Frost will enter the operating rhythm.
Regular maintenance of the system involves not only defrosting, but also monitoring the cleanliness of the condenser grille at the back of the refrigerator. Dust and pet hair, accumulating there, worsen heat transfer, forcing the compressor to work more intensely. This may indirectly affect the formation of excess ice.
Check the tightness of the door. To do this, you can clamp a sheet of paper between the door and the body and try to pull it out. If the paper comes out too easily in different places, the hinges may need to be adjusted or the seal needs to be replaced.
Frequent questions and answers (FAQ)
How long should you keep the refrigerator turned off?
The optimal time for complete defrosting is from 10 to 24 hours. The minimum time required for the main ice crust to melt is about 8-10 hours. Do not turn on the unit until you are sure that all the ice has melted and the surfaces are dry.
Is it necessary to defrost the LG Total No Frost refrigerator?
Yes, it is necessary. Despite the name, the system requires preventive defrosting at least 1-2 times a year. This is necessary to clean the drainage system and remove bacteria that are not removed by automatic defrosting.
What to do if the refrigerator does not freeze after defrosting?
If more than 5-6 hours have passed after turning it on and the temperature does not decrease, check whether the door is tightly closed. If the problem persists, it is possible that the sensor was damaged during defrosting or there was a problem in the circulation system. You need to call a specialist.
Is it possible to wash the inside of the refrigerator with water?
You can wash the internal chambers with water, but be careful. Avoid spraying water onto the rear wall with ventilation holes and onto the ceiling of the chamber where sensors may be located. It is better to use a damp, well-wrung out cloth.