Owners of modern household appliances often wonder what temperature regime is the reference for their specific model. For devices of the South Korean brand LG this parameter is of critical importance, since it determines not only the duration of storage of products, but also energy consumption, as well as the risk of unpleasant odors.
Optimal values vary depending on the workload of the chambers and the time of year, but there is a gold standard recommended by the engineers of the manufacturer. In this article, we will look in detail at how to set digital display or a mechanical regulator so that your refrigerator works in ideal mode.
Incorrectly setting the thermostat can lead to spoilage of expensive products or, conversely, to their freezing. Understanding the principles of operation of the system Multi Air Flow will help you avoid common mistakes during operation.
Optimal temperature values for different zones
The main chamber of the refrigerator is not a monolithic space with the same temperature everywhere. Due to the laws of physics and the characteristics of air circulation, indicators on different shelves may differ by several degrees, which must be taken into account when placing supplies.
On the top shelf, where warm air rises, the temperature usually stays around +5..+7°C. This is an ideal place for storing ready-made dishes that are planned to be consumed in the next couple of days, as well as for sauces and drinks.
The middle shelves are considered a stable cold zone, where the thermometer shows +3..+5°C. It is best to define dairy products, sausages and cheeses here. This is where climate class equipment works most efficiently.
⚠️ Attention: Do not fill the shelves with products close to the back wall. In models with the system No Frost the outlet openings of the air ducts are located there, and blocking them will disrupt the circulation of the cold flow.
The lower zone, often called the "freshness zone" or Zero Zone, maintains a temperature of about 0..+2°C. This is the best place to store raw meat, fish and seafood if you plan to cook them within 1-2 days.
Setting up digital control and display
Modern models LG are equipped with electronic controls that allow you to set parameters with an accuracy of a degree. The control panel is usually located on the outside of the door or inside the refrigerator compartment.
To change the settings, you must press the Fridge (Refrigerator) or Freezer (Freezer) button. Each press changes the value by 1 degree. The standard setting cycle allows you to select a range from +1°C to +7°C for the refrigerator compartment.
- 🌡️ Press the mode selection button to activate the indicator on the display.
- ❄️ Use the same buttons to increase or decrease the numerical value.
- ⏳ Wait 3-5 seconds without actions so that the system automatically saves the new parameters.
If you accidentally set extremely low values, the compressor may work without stopping, trying to achieve a result that is unattainable under the given conditions. In such cases, the protection system may temporarily block changes to the settings.
Operating modes: Smart Saving and Express Freeze
Intelligent control systems offer ready-made use scenarios that change the compressor operating algorithm and fans. Mode Smart Saving (Economy) is intended for periods when you rarely open the door, for example, when going on vacation or for the weekend.
In this mode, the temperature in the refrigerator compartment rises to +7..+9°C, which prevents food spoilage, but significantly reduces energy consumption. The freezer continues to operate normally, maintaining freezing.
Function Express Freeze (Fast freezing) is useful when you need to quickly freeze a large amount of fresh food. It turns on the compressor at maximum power. It is not recommended to use this mode constantly, as this leads to increased wear of parts.
| Mode | HK temperature | MK temperature | Purpose |
|---|---|---|---|
| Standard | +3°C | -18°C | Daily use |
| Economy (Smart) | +7°C | -18°C | Rare use |
| Quick freezing | +3°C | -24°C | Preparing food |
| Holiday | Off/Eco | -18°C | Long absence |
Seasonal adjustment and external factors
The temperature in the room directly affects the operation of the refrigeration unit. In the summer, when the kitchen is hot, heat exchange is difficult and the compressor takes longer to cool the chambers. In winter, the situation may be reversed if the refrigerator is located near a window or unheated wall.
In summer, it is recommended to set the value 1 degree lower than standard to compensate for heating from the environment. However, make sure that the value does not fall below +1°C, otherwise the food at the back wall may freeze.
In winter, if the room is cool (below +16°C), some older models may “think” that the desired temperature has already been reached and do not turn on the compressor often enough. In this case, thawing may begin in the freezer.
⚠️ Attention: Do not install the refrigerator near heat sources (radiators, stoves, ovens). Even modern models with inverter compressor will work with overload in such conditions.
If you notice that condensation is constantly forming on the products or, conversely, they dry out quickly, try (fine-tuning) the temperature mode depending on the season.
Features of the freezer compartment
The freezer compartment in refrigerators LG usually operates in the range from -18°C to -24°C. A value of -18°C is considered the international standard for long-term storage of frozen food, ensuring that bacterial growth is stopped.
The Quick Freeze mode temporarily lowers the temperature to -24°C. This allows you to create an “ice crust” on products quickly, preserving their structure and vitamins. After the cycle is completed (usually after a few hours or automatically after a day), the system will return to standard -18°C.
- 🧊 For storing meat and poultry, the optimal temperature is -18°C.
- 🐟 Fish and seafood are best stored at -20°C and below to preserve taste.
- 🍦 Ready-made semi-finished products and ice cream are well preserved at -18°C.
There is no point in keeping the value -24°C constantly if there is no direct need for it.
Why does ice freeze in the freezer?
If a lot of ice forms in the freezer ice or “fur coat”, check the tightness of the door seal. It could also be caused by placing hot foods inside or frequently opening the door in humid weather. The No Frost system should prevent the formation of ice, but if the seal is broken, moisture will crystallize.
Diagnostics of temperature problems
Sometimes users are faced with a situation where the set values do not correspond to reality. If you suspect a malfunction temperature sensor or a refrigerant leak, you need to carry out a simple diagnosis.
The first sign of a malfunction is the constant operation of the compressor without shutting off or turning on too frequently. The second sign is the presence of warm zones in the refrigerator compartment or thawing of food in the freezer under normal settings.
It is also worth paying attention to the error code that may appear on the display. For example, series codes indicate a problem with the fan, and series codes indicate a malfunction of the defrost sensor. In such cases, adjusting the temperature yourself will not help. Er FF indicate a problem with the fan, and Er SF - a malfunction of the defrost sensor. In such cases, adjusting the temperature yourself will not help.
☑️ Cold diagnostics
If after checking all the settings and cleaning the ventilation system the problem persists, you may need professional repair or replacement of the thermostat.
Frequently asked questions (FAQ)
Why is the temperature in the LG refrigerator higher than mine set?
This can happen for several reasons: recent loading of a large amount of warm food, frequent opening of the door, contamination of the condenser at the back of the device, or a faulty sensor. Give the refrigerator time to get into mode.
What temperature should you set in the LG refrigerator in the summer?
In the hot season, it is recommended to set the value to +3°C or +4°C. If the room is very hot (above +30°C), you can reduce it to +2°C, but make sure that the vegetables at the back wall do not freeze.
What does a flashing temperature indicator mean?
A flashing indicator usually indicates that the temperature inside the chambers is higher than the established norm. This often happens immediately after the first turn on or after defrosting. After a few hours of operation, the indicator should go out.
Is it possible to store medicines in an LG refrigerator?
You can store medicines, but only if the instructions for the medicine allow a temperature of +2..+8°C. Remember that the temperature is different in different zones of the refrigerator, and for precise medications it is better to use a separate thermal container with a thermometer.