Modern household appliances from the South Korean brand LG are famous for their reliability and thoughtful functionality, but even the most advanced equipment requires periodic maintenance. Many owners are wondering how to properly start the defrosting process so as not to damage the internal mechanisms and extend the life of the unit. The answer to this question directly depends on the type of cooling system installed, since the approach to servicing models with manual defrosting and devices operating using technology No Frostis fundamentally different.
In most cases, the user does not need to look for a special “Defrost” button on the control panel, since this process either occurs automatically or requires completely disconnecting the device from the power supply. Improper actions, such as trying to chip the ice with a knife or using a hair dryer to speed up the process, can cause serious damage to the evaporator or compressor. That is why it is important to clearly understand what type of equipment you are dealing with before taking active steps to remove ice.
Below we will analyze in detail the algorithms of actions for various modifications of refrigerators, explain the principle of operation of automatic systems and point out the critical mistakes that inexperienced users often make when trying to quickly get rid of ice in the freezer.
Determining the type of cooling system of your device
The first and most important step before starting any manipulations is to accurately determine the type of cooling system installed in your refrigerator LG. The entire further service strategy depends on this. If you have a modern model, released in the last 10-15 years, then with a 90% probability it is equipped with a system No Frost (or its variations such as Frost Free), which prevents the formation of ice crystals on the walls and products due to the constant circulation of dry air.
In such devices, the evaporator is hidden behind the back wall of the chamber, and moisture from the products is removed outside through a special a trough where it evaporates in a pan next to the compressor. Owners of such units do not need to think about how to turn on defrosting manually, since automatic defrosting occurs several times a day on a timer, unnoticed by the user.
⚠️ Attention: An attempt to forcefully defrost the No Frost system by unnecessarily long shutdowns may disrupt the calibration temperature sensors.
On the other hand, there are models with a drip system (or completely manual defrosting), where moisture condenses on the back wall of the refrigerator compartment and flows down, but the freezer may require manual intervention. In such cases, a “coat” of frost gradually grows on the walls of the freezer, the thickness of which should not exceed 5-7 millimeters.
Manual defrosting algorithm for freezers
If you find something in the freezer compartment of your refrigerator LG a significant layer of ice has formed, which prevents closing the drawers or door, it is necessary to carry out the defrosting procedure. This process is relevant for models where the freezer is not equipped with an automatic defrosting system. First of all, you need to completely empty the chambers of food, since storing food at above-zero temperatures during defrosting is unacceptable.
Next, you should disconnect the device from the electrical network. To do this, remove the plug from the socket - this is a critical safety condition. After turning off, open the refrigerator and freezer doors as wide as possible to allow warm air to flow in. Some users try to speed up the process by installing containers with hot water inside, but this must be done extremely carefully so as not to damage the plastic shelves with a sudden temperature change.
☑️ Checklist for proper defrosting
It is important to understand that mechanical removal of ice using knives, screwdrivers or other sharp objects are strictly prohibited. Damage to the evaporator tubes, which are often located just behind the plastic panel, will lead to a refrigerant leak and costly repairs that cannot be done on your own at home.
While the melting process is underway, it is recommended to have absorbent rags or towels ready to mop up any water that drips onto the floor. Some models LG have special removable gutters for collecting melt water, but you should not rely on them alone, since with a large amount of ice the water can overflow.
Using the Vacation Mode function and other modes
Owners of smart refrigerators LG s With touch screens, people often wonder whether operating modes can be used to control the temperature for defrosting purposes. The menu of modern models actually contains various options, such as Eco Saver, Express Freeze or vacation mode. However, none of these modes are intended for forced defrosting in the classical sense of the word.
Mode Vacation Mode (Vacation) is designed to save energy when the owners are away for a long time. In this mode, the temperature in the refrigerator compartment rises to +15°C to prevent mold and odors, but the freezer continues to operate as normal. Consequently, the ice in the freezer will not melt, and the food in the main compartment will spoil if it is not removed.
| Mode name | Function | Influence on ice |
|---|---|---|
Express Freeze |
Intensive freezing | Increases ice formation |
Eco Saver |
Energy saving | Does not affect defrosting |
Vacation |
Holiday mode | Keeps the freezer cold |
Smart Diagnosis |
Diagnostics faults | Does not affect the temperature |
There is also a function Smart Diagnosisthat helps service engineers remotely identify a fault by sound signals, but it does not participate in the defrosting process in any way. If your refrigerator has stopped freezing or, conversely, freezes food, creating giant icicles, this indicates a breakdown, and not the need to switch modes.
Why can’t you use modes for defrosting?
Refrigerator operating modes are programmed by the manufacturer for specific use scenarios. An attempt to “deceive” the system by setting the maximum temperature will not force the defrost heating elements to turn on in No Frost models, since they are activated only by a signal from a timer or sensor, and in conventional models they will simply raise the temperature in the chamber without melting the ice quickly.
Technical reasons for the formation of excessive ice
If the question “how to turn on defrosting” arose for you because If the refrigerator LG grows with ice too quickly and abundantly, despite the presence of the No Frost system, then the problem lies in a technical malfunction. In a working device, the layer of frost on the hidden evaporator has time to melt during defrost cycles, but if the system fails, ice accumulates and blocks the air circulation channels. One of the common reasons is failure of the heating element. If it burns out, the ice on the evaporator does not melt, eventually turning into a monolithic piece. Another common reason is a malfunction of the defrost sensor or timer, which does not give the command to turn on the heating at the right time. The drainage hole through which melt water should drain may also become clogged.
One of the most common reasons is failure Defrost heating element (heating element). If it burns out, the ice on the evaporator does not melt, eventually turning into a monolithic piece. Another common reason is a malfunction of the defrost sensor or timer, which does not give the command to turn on the heating at the right time. The drainage hole through which melt water should drain may also become clogged.
⚠️ Attention: The constant presence of a large amount of ice inside the housing (even if it is not visible from the outside) causes the compressor to work with overload, which significantly reduces its resource.
In such conditions In situations, a simple defrosting for 24 hours can temporarily solve the problem by removing the ice, but after 2-3 weeks the situation will repeat. For an accurate diagnosis, you need to call a technician who will check the resistance of the heating element and the integrity of the sensor circuit using a multimeter.
Errors during defrosting that lead to breakdowns
The desire to quickly put the refrigerator LG in order often leads to actions that cause irreparable harm to the equipment. The most common and dangerous mistake is using sharp objects to chip ice. Aluminum evaporator tubes have very thin walls, and piercing them with the point of a knife or the blade of an ice pick is easier than it seems.
Another fatal mistake is the use of open flame sources or powerful heating devices (for example, hair dryers) in close proximity to plastic parts and seals. The plastic may be deformed, and the rubber door seal may lose elasticity or melt, which will break the seal of the chamber.
- 🔥 Ban on boiling water: Do not pour boiling water directly onto ice blocks; a sudden temperature change can cause cracks in the plastic case or glass shelves.
- 🔌 Ignoring time: Do not plug in the refrigerator while there is at least some moisture or ice left inside. Water can get on the electrical contacts and cause a short circuit.
- 🧼 Use of aggressive chemicals: When defrosting, do not use strong solvents or abrasives that can damage the antibacterial coating of the chambers.
It is also worth mentioning a timing error. Many users turn on the refrigerator as soon as the last piece of ice breaks off, forgetting to thoroughly wipe all surfaces dry. Residual moisture will instantly turn into a new ice crust as soon as the compressor starts.
Care for the No Frost system after defrosting
After you have successfully defrosted (or eliminated the consequences of a failure in the No Frost system), it is important to properly start the refrigerator LG into operation. First, make sure that all removable elements - shelves, drawers, egg trays - are completely dry. The moisture on them will instantly freeze, sticking the boxes to the walls of the chamber.
Plug in the empty refrigerator and let it run idle for 2-3 hours. This is necessary so that the unit reaches the desired temperature and the thermostat (or electronic sensor) turns off the compressor. Only after reaching the operating temperature can the products be loaded. Abrupt loading of warm foods into a just defrosted refrigerator will force it to work in super-freezing long time, consuming excess energy.
Pay special attention to cleaning the drainage hole if your model requires its presence in the access area. A blockage in this area is a common reason why water begins to accumulate at the bottom of the refrigerator or under vegetable drawers, creating the feeling of a leak.
Regular care of the door seals also helps prevent excess ice formation. If the rubber band does not fit tightly, warm, humid air from the kitchen constantly enters the chamber, which condenses and freezes. Wipe the seal with a soft cloth and periodically check its integrity.
Frequently asked questions (FAQ)
How long does it take to completely defrost an LG refrigerator?
The defrosting time depends on the amount of ice and the room temperature. On average, the process takes from 3 to 6 hours. Do not try to artificially speed it up with hair dryers or heating pads, as this may damage the plastic parts.
Is it necessary to defrost an LG refrigerator with the No Frost system?
Technically, the No Frost system does not require manual defrosting. However, manufacturers recommend turning off the refrigerator at least once a year (or once every 6 months if the room humidity is high) to carry out general cleaning and disinfection while it defrosts naturally.
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 cold does not appear, perhaps during defrosting you The wiring has been damaged or moisture has entered the system causing a short circuit. The compressor start relay could also be faulty. In this case, diagnostics by a specialist is required.
Is it possible to defrost the refrigerator without removing the food?
It is absolutely not possible. During defrosting, the temperature inside the chambers rises above 0°C, which will lead to defrosting of food, bacterial growth and food spoilage. All products must be removed and placed in a cool place or thermal containers.