The situation when food in the refrigerator compartment begins to freeze, and vegetables lose their freshness due to too low a temperature, is familiar to many owners of modern household appliances. Often this happens not because of a breakdown, but because of incorrectly set parameters thermoregulation. In LG refrigerators, especially in models with a system No Frost and an inverter compressor, climate control may not be obvious to a user accustomed to mechanical knobs.
Increasing temperature is a process that requires an understanding of the logic of operation electronic control unit. If the chamber is too cold, the compressor may work in increased mode, which leads to excessive energy consumption and unnecessary noise. It is important to know where exactly to look for the settings, since the interface may differ depending on the series of your device, be it LG DoorCooling+ or a classic model.
In this article we will analyze in detail the action algorithms for various types of control panels. You will learn how to properly calibrate sensors, use saving modes, and understand when changing settings no longer helps and you need to call a technician. Remember that even a minimal change in 1 degree can radically change the storage conditions of products.
⚠️ Attention: If after changing the settings the temperature does not stabilize within 12-24 hours, the defrost sensor or thermostat may be faulty. Do not attempt to disassemble the back wall yourself unless you have experience working with electrical circuits.
Identifying the type of control panel
The first step before making any changes to the operation of the unit is to accurately identify the type of interface. There are two main types of controls in LG refrigerators: electronic (touch or push-button) and mechanical. All further instructions depend on this, since reset algorithm their settings are fundamentally different.
Electronic panels are usually located on the outside of the door or inside the chamber in the upper corner. They are equipped with a digital display showing the current temperature. Mechanical controls are a rotary dial with graduations, often hidden inside the refrigerator compartment. Understanding the type of your device is key factor success.
If there is a screen on the door that shows numbers, then you have electronics. In this case, all manipulations are performed without opening the doors. If there is a plastic disk hanging inside with marks or numbers from 1 to 7 (or Min/Max), then adjustment is made by by physical rotation this element.
Temperature adjustment on models with a display
For owners of LG refrigerators with an external display The setup process is as simplified as possible, but requires care. The standard temperature in the refrigerator compartment should be +3...+5°C. If food freezes, the temperature must be increased. To do this, use the button Fridge or Mode.
Press the refrigerator control button. The display will start flashing the current value. Each press will change the indicator by 1 degree. Move towards increasing numbers. For example, if it is +1°C, successively increase the value to +3°C or +4°C.
- 🔹 Press the button
Fridgeonce to activate the setting. - 🔹 Watch the flashing indicator on the panel screen.
- 🔹 Continue pressing until you reach the desired value (for example,
+5°C). - 🔹 Stop pressing the buttons and wait 5 seconds for automatic saving.
On some models, such as LG InstaView, settings may be hidden in the menu. In this case, it may be necessary to hold the button for a long time (usually 3 seconds) to unlock the panel before making adjustments. Without unlocking, pressing the buttons will have no effect, which often confuses users. Lock (usually 3 seconds) to unlock the panel before making adjustments. Without unlocking, button presses will have no effect, which often confuses users.
After setting new parameters, the compressor will not start working immediately in the new mode. The electronics require time to process the signal and transmit the command to inverter motorTemperature stabilization usually occurs within several hours.
Adjusting the mechanical thermostat
In classic models of LG refrigerators, where there is no digital display, a mechanical thermostat is used. It is a handle, usually located on the ceiling of the refrigerator compartment or on the side wall. The operating principle here is based on the physical opening and closing of contacts when the freon pressure in the capillary tube changes.
The paradox of LG mechanical regulators (and many). other brands) lies in the marking. Often the scale goes from 1 to 7 or from Min to Max. However, the numbers do not indicate degrees, but cooling intensity. That is, position "7" or "Max" is the coldest value (about +1...+2°C), and position "1" or "Min" is the warmest (about +8...+10°C).
To increase the temperature (make the refrigerator warmer), you need to reduce the intensity of the compressor. Turn the knob towards lower numbers. If the regulator is set to "5", try turning it to "3" or "2".
☑️ Checking the mechanical settings
⚠️ Attention: Never turn the mechanical thermostat knob sharply or with force. fragile, especially at low temperatures, and there is a risk of breaking the regulator rod.
It is important to consider that mechanical thermostats have a large hysteresis (error). After turning the knob, the actual temperature in the chamber will not change instantly, but after a long time required for cooling or heating the evaporator and air. The optimal position of the knob for most LG models a value of 3 or 4 is considered.
Use of special operating modes
Modern LG refrigerators are equipped with intelligent modes that can automatically change the temperature mode, sometimes to the detriment of food freshness, if the user is not aware of their influence. Check whether you have activated functions that forcefully lower the temperature.
Mode "Super Cooling" (Super Cool) or "Express freezing" (Express Freeze) is often turned on automatically upon first installation or after defrosting. In this mode, the refrigerator operates at its maximum capacity, lowering the temperature to a minimum. To increase the temperature, this mode must be turned off.
- ❄️ Super Cool: Intensively cools the chamber for several hours. Turns off automatically or with a button.
- 🚀 Express Freeze: The maximum power of the freezer affects the overall cooling circuit.
- 🏖️ Eco Saver / Energy Saving: On the contrary, it can increase the temperature to save electricity.
To turn off intensive modes, find the corresponding button on the control panel. Often you need to press and hold the button Super Cool or Freeze for. 3 seconds. The indicator on the display should go out, which signals a return to normal mode operation.
Why is the "Super Cooling" mode dangerous for products?
Long-term operation in this mode (more than 24 hours) can lead to overfreezing of vegetables and fruits, destroying their cellular structure. Use this mode only for quickly cooling large quantities of warm foods.
It is also worth paying attention to the “Vacation” mode. In some models, it, on the contrary, increases the temperature in the refrigerator compartment to +15°C to prevent the appearance of mold in the absence of owners, but make sure that you correctly interpret the indication of the modes on yours. device.
The influence of food location on temperature
Often the problem of local hypothermia lies not in the settings, but in violation of the rules air circulation. In systems No Frost cold air is supplied through special channels, usually located on the rear wall. If food is placed close to the back wall, it may freeze, even if the sensor shows normal.
The refrigerator compartment should be approximately 60-70% full. If it is empty, the cold air has nothing to give off temperature to, and it quickly cools the free space. If the chamber is jam-packed, the air flow is disrupted, and some areas may be warm, while others may have an icy crust.
| Storage area | Recommended temperature | Risk at low temperatures |
|---|---|---|
| Shelf at the back walls | +2...+4°C | High risk of freezing of liquids |
| Door shelves | +5...+7°C | Minimal, but souring is possible |
| Bottom drawer (vegetables) | +4...+6°C | Moisture loss, wilt |
| Top shelf | +3...+5°C | Medium risk |
Check that the ventilation openings are not blocked by food. In LG models with technology DoorCooling+ cold air is also supplied from above through the door. Cluttering the upper space can cause the sensor located at the top to “think” that the chamber is warm and continue to freeze until the food below turns to ice.
Diagnostics of faults when adjustment is impossible
If you have changed the settings, rearranged the products, turned off the super cooling modes, but the temperature in the chamber remains critically low (the products freeze), this may indicate a technical malfunction. In such cases, a programmatic increase in temperature is impossible without repair.
One of the common reasons is failure of temperature sensor (thermistor). If he “lies” and shows the control unit that the chamber is +10°C, when in fact it is 0°C, the compressor will work continuously. In LG models with the function Smart Diagnosis you can try to diagnose the problem through a smartphone by emitting special sound signals.
Another possible reason is sticking of the cold air damper (damper). In dual-circuit systems, the damper must block the flow of cold air from the freezer when the desired temperature is reached in the refrigerator compartment. If it is stuck in the open position, the cold will flow constantly.
⚠️ Attention: Specifications and sensor locations may vary depending on the specific model and year of manufacture. Always check the official instructions (User Manual) for your LG refrigerator series.
It is also worth checking the door seal. If it does not fit tightly, warm, moist air constantly enters the chamber. The sensor detects an increase in temperature and causes the compressor to wear out, which can ultimately lead to the formation of a coat of ice on the evaporator and subsequent sharp cooling of products during defrost cycles.
Why does the refrigerator freeze more than usual after defrosting?
After complete defrosting and turning on, the refrigerator often starts an intensive cooling cycle to quickly return to mode. This is fine. Let it work for 5-7 hours without loading food, the temperature should level out.
Is it possible to increase the temperature in the freezer separately?
Yes, in two-compressor models or models with independent control, the freezer compartment (Freezer) is adjusted separately from the refrigerator. Use the appropriate button on the panel.
What to do if the display shows an error?
If letters or codes flash instead of degrees (for example, Er, FF, dS), this is a malfunction signal. Try unplugging the refrigerator for 10-15 minutes to reboot the system. If the error remains, diagnostics by a specialist is required.
Does the temperature in the room affect the operation of the refrigerator?
Yes, LG refrigerators are designed to operate in a certain climate class (usually from +10°C to +32°C or +43°C). If the room is too cold (below +10°C), the compressor may not turn on or work incorrectly.