Owners of modern household appliances often wonder whether their units need defrosting at all, especially if the front panel has a logo LG marked Total No Frost. Many people mistakenly believe that automatic defrosting systems completely free the user from any intervention in the operation of the device. However, even the most advanced models require periodic maintenance to maintain the efficiency of the compressor and the hygiene of the internal space.
Ignoring basic care rules can lead to the appearance of an unpleasant odor, the growth of bacteria and a decrease in the quality of cooling of products. In two-chamber models of the Korean brand, the process may differ depending on the type of cooling system installed, be it classic drip or modern wind. Complete disconnection from the power supply for 24 hours is necessary only for models with manual defrosting or for deep cleaning after a long period of inactivity.
In this article we will analyze in detail the algorithm of actions for various modifications of refrigerators LG, we will explain the difference between the systems Drop System and No Frost, and also provide a checklist for a safe procedure. The right approach will extend the life of the unit and maintain the freshness of your supplies.
Features of cooling systems in LG refrigerators
Before taking active steps, you need to clearly understand what type of defrosting you are dealing with. In two-chamber LG refrigerators, a combination of systems is most often found: a drip system or also a drip system is installed in the freezer compartment, and a drip system is installed in the refrigerator compartment. Models with a complete absence of ice are labeled as No Frost, and in the refrigerator compartment there is a drip system or also No Frost. Models with a complete absence of ice are marked as Total No Frost and require minimal intervention.
The drip system, also known as Drop System or “crying wall”, works on the principle of periodic defrosting of the evaporator. Moisture flows down the back wall into a special hole and is discharged outside. Despite automation, an ice “coat” may form in such chambers if the sensors malfunction or the door is not closed tightly, which will require manual defrosting.
The system No Frost (translated as “without frost”) involves the circulation of cold air, which prevents moisture from settling on products and walls in the form of ice. The evaporator in such models is hidden and defrosts automatically according to a timer. However, this does not mean that such a refrigerator does not need to be washed: dust, crumbs and potential sources of bacteria do not disappear anywhere on their own.
⚠️ Attention: Trying to chip the ice with a knife or sharp objects in a chamber with a tubular evaporator (often hidden behind a panel in No Frost models) will lead to a freon leak and expensive repairs.
Preparatory stage before defrosting
High-quality defrosting is impossible without careful preparation. The first and most important step is to clear the interior space of food. You need to plan the procedure in advance so as not to spoil food supplies, since the temperature inside the chambers will begin to rise immediately after the compressor is turned off.
It is recommended to carry out the procedure during the cold season or when you plan to cook all the available products. If this is not possible, take care of temporary storage. Frozen semi-finished products and meat can be wrapped in blankets and taken out to the balcony (in winter) or placed in bowls with ice. It is better to eat chilled foods within the next few hours.
After releasing the chambers, you need to remove all removable elements: shelves, drawers, egg trays and containers on the door. Glass can burst if there is a sharp change in temperature if hot water gets on it, so it is better to wash glass shelves separately under the tap. Plastic boxes are also more convenient to clean in the bathroom using mild detergents.
☑️ Preparation for defrosting
Step-by-step instructions: how to properly turn off and defrost
The process of defrosting a two-chamber LG refrigerator requires sequential steps. First, find the temperature controller. In most modern models it is located inside the refrigerator compartment or on the external control panel. It is necessary to move the regulator to position 0 or Off, and then unplug the power cord from the outlet.
It is important to ensure access of warm air to the inner walls. To do this, the doors of both chambers must remain open throughout the defrost cycle. It is recommended to place old towels or flat containers under the bottom of the refrigerator and in front of it, since when the ice melts, water can flow out through the drainage hole.
If the ice crust is too thick, you can speed up the process, but this must be done carefully. It is allowed to use a hairdryer turned on at the minimum temperature at a distance of at least 30 cm from the plastic. It is strictly forbidden to pour boiling water or use heaters close to the walls, as this can deform the internal plastic or damage the seals.
The time for complete defrosting depends on the amount of ice and the temperature in the room. Typically the process takes from 4 to 12 hours. Do not rush to turn on the device until you are sure that all the condensation has evaporated and the internal surfaces are completely dry.
Is it possible to defrost faster using a fan?
Yes, by directing the air flow from a regular room fan into the open chambers, you can speed up the circulation of warm air. This is a safe method that will not damage equipment, unlike a hairdryer or boiling water.
Caring for the drainage system and eliminating odors
While the chambers are open and drying, it’s time to pay attention to hygiene. Often, an unpleasant odor in an LG refrigerator occurs due to a clogged drain hole, which is located on the back wall of the refrigerator compartment. Condensation flows into it, and if mucus or food debris accumulates there, bacteria begin to multiply.
To clean, use a special brush-brush (often included) or a soft wire wrapped in cotton wool. Carefully walk through the channel, removing any debris. After mechanical cleaning, you can rinse the hole with warm water from a syringe or syringe without a needle to make sure that water flows freely.
To eliminate persistent odors and disinfect, wipe all surfaces with a solution of baking soda (1 tablespoon per liter of water) or a weak solution of vinegar. These products are safe for plastic and effectively neutralize odors. After treatment, be sure to wipe the walls clean with a damp cloth.
Comparison of procedures for different LG models
Not all refrigerators are the same, and the approach to their maintenance may vary. Below is a table that will help you navigate the defrosting features depending on the system installed in your model.
| System type | Defrosting frequency | Washing requirement | Risk of ice formation |
|---|---|---|---|
| Total No Frost | 1 time a year (for hygiene) | Required | Minimum |
| Combined | Refrigerator: as needed Frost: 1 time per year |
Required | Medium (in the refrigerator compartment) |
| Drop | When ice forms >5 mm | Required after each defrosting | High |
Owners of models with the system No Frost should remember that at least once a year they are still recommended to turn off the device for general cleaning. Dust settling on hidden elements of the blowing system can, over time, reduce the efficiency of the fan and lead to overheating of the compressor.
If you have a model with a drip system in the refrigerator compartment, keep an eye on the door seal. A loose rubber band is the main reason why warm, moist air enters the chamber, which instantly turns into ice on the back wall. In this case, frequent defrosting will not help; the seal needs to be replaced.
Starting the refrigerator after defrosting
After you have thoroughly washed and dried all the internal surfaces, you can begin assembly. Replace all shelves, drawers and containers. Make sure the drainage hole is clear and water flows out smoothly. Only now can you turn on the device to the network.
Do not rush to load products right away. Let the refrigerator run idle for at least 2-3 hours (preferably 4-6 hours) so that it reaches the required temperature and the compressor reaches operating mode. Loading with warm products immediately after switching on will cause the motor to wear out.
Monitor the operation of the device in the first hours after switching on. Make sure that the compressor is running smoothly, without any extraneous knocking, and that there is condensation on the back wall of the refrigerator compartment (if there is a drip system), which indicates that the cooling process is starting normally.
⚠️ Attention: If, after turning on, the refrigerator makes loud gurgling sounds or knocking during the first 10-15 minutes, this is normal. The refrigerant begins to circulate through the system. However, if the noise does not stop after an hour, you should contact a specialist.
Frequently asked questions (FAQ)
Is it possible to defrost an LG refrigerator with a hairdryer?
Using a hairdryer is permissible only in extreme cases and with great caution. Turn on the minimum temperature setting and keep the hair dryer at a distance of at least 30-40 cm from the plastic walls. Hot air can deform the plastic or damage the seals. It is safer to use the natural defrosting method or a fan.
What to do if the refrigerator does not freeze after defrosting?
Perhaps the compressor has not yet reached operating mode. Let the appliance run empty for 4-6 hours. If cold does not appear, check that the doors are closed tightly and that the temperature regulator is set correctly. If the problem persists for more than a day, there is likely a freon leak or a breakdown due to inaccurate defrosting, and a call to the technician is required.
How often do you need to defrost a refrigerator with a No Frost system?
Technically, the No Frost system does not require defrosting to remove ice. However, to maintain hygiene and remove dust, odors and bacteria, it is recommended to completely wash and turn off the device once a year.
Can refrigerator shelves be washed with hot water?
Glass shelves cannot be washed with hot water immediately after removal from the freezer or cold refrigerator - the glass may crack due to temperature changes. Let them warm to room temperature or wash with warm water.