How to correctly add and adjust the temperature in an LG refrigerator

Modern South Korean refrigerators companies LG are complex electronic systems, where temperature control is often hidden behind touch panels or intelligent algorithms. Many users are faced with a situation where they need to force changes to factory settings, for example after loading a large amount of fresh food or before being away for an extended period of time. Understanding the logic of operation digital control allows you not only to achieve ideal storage conditions, but also significantly extend the service life of the compressor.

The process of changing settings depends on the specific series of the device: in some models this is done through the external panel Touch Control, in others - through the internal control panel, and in third - completely through the mobile application LG ThinQ. It is important to immediately note that the term “add temperature” in the context of refrigeration technology usually means increasing the degree mark (making it warmer), although in everyday life users often confuse this with increasing the cold. In this guide, we will look at all the nuances of setting the climate inside the chambers for various modifications of units.

Before you start manipulating the buttons, you need to realize that sudden changes in settings can cause stress for compressor and the system No Frost. Electronics need time to stabilize their cooling cycles after each intervention. Therefore, if you have just set new values, do not expect instant results - thermal stabilization takes from 2 to 6 hours depending on the load of the chambers and the ambient temperature.

Determining the type of control panel of your model

The first step to successful setup is identifying the interface of your device. Models LG are conventionally divided into three main groups according to the type of user interaction. In old and budget series, there is often a mechanical regulator or a simple rotary switch inside the refrigerator compartment, which is marked with numbers from 1 to 7 or words Min-Max. In this case, “add temperature” (make it colder) you need to turn the knob towards a higher number.

More modern units are equipped with an external touch panel on the door. Here, control is carried out through sequential pressing of the buttons Fridge (Refrigerator) or Freezer (Freezer). Each press changes the value on the display. There is also a group of models with an internal display located on the ceiling or wall of the refrigerator compartment. To access the settings of such models, you often need to open the door, which leads to a short-term increase in the temperature inside.

⚠️ Attention: If the lock indicator (key icon) is on on the display, any attempts to change the settings will be ignored by the system. First you need to unlock the control panel, usually this is done by a long (3 seconds) press of the button Lock or the combination Freezer + Fridge.

For owners of smart refrigerators with support Wi-Fi an alternative control path is available. Through the application LG ThinQ on your smartphone you can not only change the temperature, but also track the history of changes. This is especially useful if the control panel on the refrigerator itself is high or damaged. However, for initial synchronization you will still need physical access to the buttons on the case.

Instructions for models with an external touch panel

Setting the temperature on models with an external display is the most common scenario. The panel is usually located at the top of the right door. To change the operating mode, you will need to find a button labeled Fridge for the refrigerator or Freezer for the freezer. Pressing this button activates the editing mode, which is indicated by the blinking numbers on the screen.

After activating the editing mode, each subsequent press of the button will change the temperature value. The setting range for the refrigerator compartment is typically +1°C to +7°C, and for the freezer compartment -6°C to -23°C. If your goal is to “add temperature” in the sense of making it colder, you need to lower the numbers (for example, from +5°C to +2°C). If you need to make it warmer, the value is increased.

It is important to know that some models LG have a function Express Freeze (Fast freezing) or Express Cool (Fast cooling). Activating these modes temporarily ignores the degrees you set, forcing the compressor to operate at maximum power. After the cycle is completed (usually after a few hours), the system will return to the parameters you specified.

There is a nuance with the temperature display. In some regions or under certain settings, the display may not show the current inside temperature, but rather the target temperature (the one you set). To understand what your screen is showing, open the door and close it - if the numbers quickly go up, then this is the current temperature sensor. If the numbers remain in place or do not change immediately, you see the target value.

Temperature adjustment in the internal chambers

In models where the display is located inside the refrigerator (often on the left wall or under the ceiling), the control logic is similar, but requires opening the door. Touch buttons Refrigerator and Freezerare also used here. A special feature of such panels is their protection from moisture, however, when the door is opened for a long time, they can go into sleep mode to save energy.

If you want to “add temperature” (increase the cold) to quickly freeze meat or fish, you can use the Super Freezemode. In this mode, the freezer runs continuously, ignoring the thermostat. It is not recommended to use this mode constantly, as this leads to increased energy consumption and accelerated formation of ice in the drainage system if it is not fully automated.

Secrets of the internal control panel

Calibration is often hidden inside the panel. If you hold down the temperature setting button for 10-15 seconds (depending on the model), you can enter the service menu, where more subtle settings are available, for example, shifting the temperature sensor. However, it is not recommended to do this without knowing the exact values, since the calibration can be lost, and the refrigerator will start freezing incorrectly, spoiling the food.

For refrigeration chambers with a freshness zone (zero zone), a separate regulator is often provided. This zone maintains the temperature at around 0°C, which is ideal for meat and fish before cooking. When changing the settings of the main chamber, do not forget to check whether the parameters in the freshness zone have been reset, since in some models they are connected, and in others they are independent.

Specific settings of two-compressor and multi-door models

Multi-door refrigerators LG (French Door type) are often equipped with two compressors: one for the upper refrigeration part, the other for the lower freezing part. This allows the temperature in each circuit to be adjusted independently and more accurately. If you change the settings, the system may alternately start the compressors, so the noise may arise from different sides of the unit.

In such models there is often an additional chamber DoorCooling+ or wine zone. The temperature in the wine zone is usually fixed or has a limited adjustment range (+5°C to +15°C) to avoid freezing the drinks. An attempt to “add temperature” below +5°C in the wine zone may be blocked by the software.

Owners of multi-door models should pay attention to the distribution of air flows. If you have loaded the bottom freezer with a large volume of food, the system may take longer to cool the top section, even if the compressors are independent, due to heat transfer through the baffles.

Use of special modes and functions

Function Eco Friendly or “Eco mode” automatically increases the temperature in the refrigerator compartment to +5°C...+6°C and in the freezer to -15°C...-17°C. This is done to save energy. If you need to “add temperature” (make it colder) to store perishable products, this mode must be disabled, since it has priority over manual settings.

Mode Smart Saving (smart economy) works according to an algorithm: if the door has not been used for 1 hour, the temperature rises by 2 degrees, if 4 hours - by 4 degrees. This can be confusing for a user who has set up ideal settings and then finds warming hours later. Check if this function is activated if the temperature “floats.”

⚠️ Attention: Specifications and names of modes may vary depending on the year of manufacture and regional firmware version of the refrigerator. Always check the user manual supplied with the kit, or use the latest information on the manufacturer's official website for your specific model.

There is also a "Vacation" mode (Vacation). When it is turned on, the refrigerator compartment can be turned off completely or warmed up to +15°C (to prevent mold from forming), while the freezer continues to work. This is an extreme case of changing the temperature regime, when you need to leave the unit turned on, but without food in the main chamber.

Diagnostics: why the temperature does not change

If you have completed all the steps, but the temperature does not change or the display shows strange symbols, the protection system may have worked or an error has occurred. Often users see a code Er FF (freezer fan error) or Er SF (sensor error), and in this state the temperature control is blocked.

Another reason is that the child lock is turned on. As mentioned earlier, the lock indicator locks all buttons. It’s also worth checking to see if the plug has come loose from the socket. After a short-term power outage, some models LG are reset to factory settings, and you will have to “add the temperature” (adjust the cold) again.

In rare cases, the problem may lie in a malfunction of the sensor module itself or the control board. If the buttons are pressed, but there is no response, and a reboot does not help, most likely you will need to call a specialist to diagnose the electronics.

Common mistakes when setting the climate

One ​​of the most common mistakes is setting the minimum possible temperature (+1°C or -24°C) “just in case.” This does not make the food fresher, but it is guaranteed to lead to excessive energy consumption, freezing of food in the refrigerator compartment and a reduction in compressor life. The temperature should be optimal, not minimal.

The second mistake is frequently changing the settings. If you have turned the knob or pressed the buttons, give the system at least 4-5 hours to stabilize. Constant jumps in tasks for the controller do not allow the system to reach the design operating mode, and products may deteriorate due to an unstable temperature background.

Why does the temperature on the display not coincide with reality?

The display shows either the target temperature or data from the sensor with a delay. The actual temperature inside may differ by 1-2 degrees due to frequent opening of doors, loading of warm food or location of the temperature sensor. For an accurate check, use an external thermometer, placing it in a glass of water on the middle shelf.

Is it possible to set the temperature below -24°C in the freezer?

In most household models LG the lower limit is limited to -24°C by software. This is due to the technical capabilities of the refrigerant and compressor. Setting lower values ​​is not provided for by the design and can lead to an emergency stop of the system.

What to do if the mode is lost after a power surge?

You need to manually restore the settings. On some models with a function Smart Diagnosis or memory, the last settings may be saved. If not, set the standard values: +3°C for the refrigerator and -19°C for the freezer, then adjust as necessary.

Does the ambient temperature (in the room) affect the settings?

Yes, if the room is very hot (above +30°C) or cold (below +10°C), the refrigerator may not be able to support the set values parameters or go on the defensive. In such conditions, standard settings may not work effectively, and either improving operating conditions or changing the temperature regime to a more stringent one is required.