Owners of modern household appliances often wonder whether their device really requires regular complete defrosting, and if so, how much time should be allocated for this. Refrigerators LG with the system No Frost (without frost) are designed to minimize human participation in maintenance, however, it is impossible to completely eliminate the need for preventive measures.
Many users mistakenly believe that the inscription on the front panel frees them from any manipulations with defrosting forever. In fact, although the ice in the chamber does not grow in a thick layer, moisture from the products still settles on the evaporator, hidden behind a plastic panel.
For the correct operation of the compressor and condensate removal system, periodic stopping of the unit is necessary. The time required for this process differs significantly from the old Soviet models, but it is not zero, as some people think.
Features of the No Frost system in LG technology
The technology No Frostused by the Korean concern is based on the forced circulation of air masses inside the chambers. Unlike classic models, where the cold comes from the walls, here the air is constantly forced through a special evaporator, usually located in the upper part of the freezer or behind the back wall of the main compartment.
The key element is Defrost heating element, which is automatically turned on by a timer or a command from sensors, melting the ice on the evaporator. The resulting water flows into a drainage tray above the compressor and evaporates. However, this system is not ideal and may malfunction over time.
- ❄️ The air in the chambers remains dry, which prevents the products from sticking together, but requires humidity control.
- 🌬️ Uniform temperature distribution is achieved through the operation of a fan, which sensitive to icing.
- 💧 The drainage system can become clogged with crumbs or mold, requiring mechanical cleaning.
It is the presence of a hidden evaporator and a complex air duct system that dictates its own maintenance rules. If you do not allow the system to “rest” and completely defrost the hidden cavities, the cooling efficiency drops.
Is it necessary to defrost LG No Frost and why
Answer to the question “Is it necessary” lies in the physics of the device’s operation. Despite the automatic defrosting of the evaporator, a so-called “snow coat” can form in hard-to-reach places, especially in the area of air duct joints and at the very bottom of the freezer. This is due to the fact that not all the moisture has time to evaporate or drain during short cycles of automatic defrosting.
Complete defrosting of the LG No Frost refrigerator is required on average once every 12 months to carry out sanitary treatment and remove hidden ice that automation cannot eliminate. Ignoring this rule leads to the fact that the ice plug blocks the outflow of water, and it begins to accumulate under the drawers or leak onto the floor.
In addition, bacteria inevitably multiply inside the unit and an unpleasant odor appears, which no filter will remove deodorization. Warm water and detergent are the only way to remove biofilm from the walls and seals.
⚠️ Attention: If you notice that your LG refrigerator starts working longer than usual or turns on more often, this is a sure sign that heat exchange is impaired due to a layer of ice on the hidden evaporator. Urgent defrosting will correct the situation.
It is important to understand the difference between planned maintenance and an emergency. In the first case, you act according to a schedule, in the second, you react to symptoms of a malfunction, such as buzzing or poor cooling.
How long does the defrosting process take
One of the main fears of owners is leaving the family without a refrigerator for several days. Fortunately, for models LG with the system No Frost these fears are unnecessary. Since there is no main body of ice, the process goes much faster than in drip systems.
Under standard conditions, at room temperature about +22...+24°C, complete thawing takes from 3 to 5 hours. This time is necessary for the ice in the hidden channels to melt and the plastic structural elements to warm up.
However, there are factors that can increase this period. If the refrigerator is in an unheated room or the kitchen is very cold in winter, the process may take up to 6-8 hours. The time also depends on the degree of contamination of the drainage system.
- 🕒 The minimum waiting time is 3 hours (for small-volume models).
- 🕒 The standard time is 4-5 hours (for most two-chamber LG models).
- 🕒 The maximum time is up to 8 hours (at low room temperatures or strong icing).
You should not try to artificially speed up the process using hair dryers or hot water, since a sharp temperature change can damage the plastic and fragile evaporator tubes.
Step-by-step instructions for defrosting an LG refrigerator
For the procedure to be safe and effective, it is important to follow the sequence of actions. Violation of the algorithm can lead to spoilage of products or damage to the control electronics.
First, you must completely empty the chambers of products. It is better to put all perishable goods in basins with ice or take them out to the balcony (if it’s cold there) so that they do not spoil during downtime. After this, the refrigerator is disconnected from the power supply.
Next, you should remove all removable elements: shelves, drawers, egg trays and bottle holders. They should be washed separately with warm water and a mild detergent. The doors of the unit are left wide open to ensure the flow of warm air.
☑️ Checklist for preparing for defrosting
While the melting process is underway, you can start cleaning the external parts and seals. Pay special attention to the groove around the perimeter of the door, where dirt often accumulates.
⚠️ Attention: Never use sharp objects (knives, screwdrivers) to chip ice inside the chambers. Damage to the wall or tubes of the evaporator will lead to freon leakage and costly repairs.
After the water stops dripping, you must thoroughly wipe all surfaces dry. Don't forget to clean the drainage hole, if accessible, using a special brush or soft wire.
Table: Comparison of defrosting time of different systems
To better understand the specifics of servicing your model LG, it is useful to compare it with other types of refrigeration equipment. The difference in time and labor costs is obvious.
| System type | Defrosting frequency | Average defrosting time | The need for manual ice removal |
|---|---|---|---|
| Static (Drip) | 2 times a year | 10-24 hours | Required |
| No Frost (LG, Samsung) | 1 time a year | 3-5 hours | Not required (automatically) |
| Low Frost | once a year | 6-8 hours | Minimum |
As can be seen from the table, equipment maintenance No Frost requires significantly less time. However, it is impossible to completely abandon it, since no one has canceled the hygiene standards.
Regular preventive maintenance allows you to extend the life of the compressor, which in a refrigerator clogged with ice is forced to work hard, trying to reach the set temperature.
Frequent errors during defrosting and how to avoid them
Even experienced housewives sometimes make mistakes that can shorten the life of their equipment. One of the most common is an attempt to speed up defrosting by placing containers of boiling water inside.
Steam from boiling water settles on cold walls and can damage the coating or cause deformation of the plastic. In addition, sudden heating is dangerous for temperature sensors.
Another mistake is turning on the refrigerator immediately after washing. If there is moisture left inside, when the compressor starts, it will instantly turn into an ice crust, nullifying all defrosting efforts.
What to do if the water does not go into the drain?
If after defrosting the water remains at the bottom of the freezer, it means the drainage hole is clogged. Take a soft syringe with warm water and try to gently blow out or rinse the canal. If it doesn’t help, call a technician.
It is also not recommended to turn on the unit if it has been turned off for less than 2-3 hours after defrosting. The oil in the compressor needs time to drain into the crankcase and take the correct position.
fridge care after defrosting
After completing all procedures and turning the device on network, do not rush to load it with products. Allow the system to return to operating mode. For models LG this usually takes about 2-4 hours.
Check for puddles under the unit, which would indicate problems with drainage. Make sure that the doors close tightly and the seal fits all the way around.
Regularly wipe the external surfaces with a special polish for stainless steel (if you have a model Steel or Platinum Silver) to maintain a presentable appearance. Fingers and greasy stains on such surfaces are especially noticeable.
- 🧼 Wipe the door seals with a soda solution once a month to maintain elasticity.
- 🌡️ Check the temperature in the chambers a day after defrosting to make sure the thermostat is working correctly.
- 🔌 Keep the condenser (grids at the back) clean, vacuum it once every six months for better heat transfer.
Following these simple rules will allow your refrigerator LG to serve faithfully for many years without loss of efficiency and the appearance of foreign odors.
Is it possible to defrost an LG refrigerator without unplugging it?
Absolutely not. Defrosting requires a complete power outage. Leaving the appliance turned on in the “rest” mode will not start the evaporator defrost cycle, but will only lead to defrosting of the food and potential breakdown of the compressor due to continuous operation.
Why does the LG refrigerator not turn on for a long time after defrosting?
This is normal behavior for modern electronics. The control unit performs self-diagnosis of the system. If startup does not occur within 10-15 minutes, check the voltage in the network and the tightness of the plug. In rare cases, an error reset is required.
Do you need to lubricate the seals with oil after washing?
You cannot use vegetable oil - it oxidizes and destroys the rubber. To care for the seals, use special silicone lubricants or just clean water if the rubber is not dry. Glycerin is also suitable for a short-term effect.
What to do if a whistling or hum appears after defrosting?
Short-term noise may be associated with the circulation of the refrigerant or the operation of the fan. If the sound does not stop within an hour of operation, check whether the refrigerator is level. If the problem persists, contact the service center.