Owners of modern household appliances are often faced with the need to completely or partially disable the device. For models LG Smart Inverter this procedure may imply different actions: from basic defrosting to resetting software errors or locking the control panel. Understanding the differences between these modes is critical, since incorrect actions can lead to damage to the food or the need to call a technician.
The inverter compressor installed in these refrigerators has a complex control system that requires the correct approach when turned off. Simply unplugging the cord from the outlet is not always the best solution, especially if the equipment is in active diagnostic mode or has accumulated errors in the controller’s memory. In this material we will analyze all the nuances of working with electronics LG Electronics.
There are several scenarios when the user needs to intervene in the operation of the unit. This could be a scheduled wash, transportation, long-term absence of owners, or troubleshooting. Each case requires its own algorithm of actions, which we will describe in detail below, based on the manufacturer’s technical manuals.
Types of shutdowns and their purpose
Before you begin manipulating the buttons or power cord, you must clearly define the purpose of your actions. Total blackout necessary for transportation or long-term downtime of the equipment. In this case, all refrigerator systems, including the compressor and fans, stop consuming energy.
Partial blackout, often called “Vacation” or “Eco” mode, involves operating the refrigerator compartment at minimum mode or turning it off completely while the freezer continues to freeze. This allows you to save energy without defrosting frozen food stocks. The mode Smart Inverter in this case goes into a state of deep sleep.
⚠️ Attention: Do not confuse the “Vacation” mode with complete defrosting. In the "Vacation" mode, the freezer continues to work and the ice in it will not melt, which can be unsafe when attempting mechanical cleaning.
The third option is a soft reset or reboot of the system. If the refrigerator behaves incorrectly (indicators are blinking, the compressor does not turn on, the display is glitchy), it may be required. This action returns the controller to its factory settings and often eliminates software failures without contacting service. Hard Reset. This action returns the controller to factory settings and often eliminates software failures without contacting service.
The fourth scenario is locking the control panel (Child Lock). Parents often use this feature to prevent children from changing temperature settings. In fact, this disables the ability to control, leaving the refrigerator operating within the specified parameters.
Procedure for completely de-energizing and rebooting
The most common request concerns how to completely turn off the device to reboot the system. Unlike older mechanical models, it is important to follow the sequence of actions to maintain the integrity of the data in the controller’s memory.
First, you need to find the power cord. In most models LG Smart Inverter it is located at the bottom of the rear wall. Carefully remove the plug from the socket. Do not pull the wire itself, hold only the plastic head of the plug so as not to damage the insulation.
After removing the plug, you need to wait a certain time. The refrigerator electronics must be completely discharged in order for the residual voltage on the capacitors to be released. The optimal waiting time is from 10 to 15 minutes.
After this time, plug the device back into the network. You will hear a characteristic click of the relay, and all segments on the display may light up for a couple of seconds - this is a normal self-test procedure (Self-Check). The compressor will start smoothly, without jerking, thanks to the inverter technology.
☑️ Safe reboot algorithm
How to activate and deactivate the panel lock
The Child Lock function often causes panic when users cannot change the temperature. On control panels LG this function is implemented through a combination of buttons to prevent accidental pressing.
Usually, to activate or deactivate the lock, you need to find a button with a picture of a lock or a signature Lock. Some models require you to press and hold this button for 3-5 seconds. In others, press two buttons simultaneously, for example, Freezer and Lock.
When activated successfully, the lock indicator will light up on the display. All other buttons will stop responding to presses. To unlock the panel, repeat the procedure of holding the same button or combination. A sound signal will confirm the change in status.
| Panel model | Action to lock | Indication | Hold duration |
|---|---|---|---|
| Digital Display | Press the Lock button | The icon is lit lock | 3 seconds |
| Touch Bar | Freezer + Lock | Icon flashes | 5 seconds |
| Smart ThinQ | Through the application | Icon in the application | Instantly |
| Mechanical | Not provided | Absent | - |
If the lock cannot be removed in the standard way, try turning off the power to the refrigerator for 10 minutes, as described in the previous section. This will forcibly remove the software ban if it is not caused by a physical malfunction of the touchscreen.
Vacation mode and energy saving
The Vacation Mode function is intended for those cases when you will not be at home for a long time, but you do not want to defrost the freezer. In this mode, the refrigerator compartment is turned off or switched to +15°C mode, preventing the appearance of mold and odors, and the freezer operates in normal mode.
To activate this mode on models LG Smart Inverter often use a separate button Vacation or a combination specified in the instructions. The display may show a palm tree symbol or a corresponding message. The temperature in the refrigerator compartment will no longer be displayed or will be fixed.
Why can’t you just turn off the refrigerator with a button?
Most modern LG models do not have a physical “Turn off” button on the case. This is to prevent accidental shutdown of the compressor, which could result in food spoilage. Complete shutdown is possible only through an outlet or a circuit breaker on the panel.
It is important to understand that in the “Vacation” mode Smart Inverter continues to work, maintaining a low temperature in the freezer. Therefore, electricity consumption decreases, but does not become zero. Ventilation between chambers can be limited by software.
To exit the mode, you must press the activation button again. The refrigerator will begin to increase temperature in the main chamber. This process may take several hours, during which it is not recommended to load the chamber with products.
Diagnostics and error reset via the panel
Sometimes the refrigerator requires shutdown due to an error. Models LG equipped with a self-diagnosis system. If error codes appear on the display (for example, Er FF, Er IF, Er FS), this is a signal that the fan or sensor is faulty.
The first step should always be to try to clear the error through a reboot. If after turning on the error appears again, then the problem is hardware in nature. In this case, simply turning it off will not help; diagnostics by a technician will be required.
There is also a service mode, which is entered by a special combination of buttons (often this involves simultaneously pressing the temperature adjustment buttons of the left and right chambers for 5-7 seconds). In this mode, you can check the operation of individual components: fans, defrosting heating elements, compressor.
⚠️ Attention: Entering the service mode and changing the parameters inside it without knowledge can lead to incorrect operation of the refrigerator. Use this mode only to view error codes or test (turn on/off) components without changing the factory temperature settings.
For an ordinary user, it is enough to know how to read the error code and perform a full shutdown cycle. If after a reboot the code Er** returns, further operation may be dangerous for the compressor.
Preparation for transportation and long-term storage
If you plan to transport the refrigerator or leave it in an unheated room for the winter, you need to perform a number of actions. Simply turning off LG Smart Inverter from the network is not enough.
First of all, the refrigerator must be completely defrosted. Remaining water in the drainage system or evaporator can damage the plastic elements or even cause cracks in the heat exchanger if it freezes. Leave the doors open for 24 hours after defrosting.
After the insides have dried, the doors should be secured in the slightly open position (for example, by laying a towel) to ensure air circulation. This will prevent the appearance of a musty smell and mold inside the case during inactivity.
During transportation, it is strictly forbidden to place the refrigerator on its side, unless otherwise stated in the instructions, or tilt it more than 40 degrees. Oil from the compressor may enter the cooling circuit, which will cause water hammer when first started after switching on.
Frequently asked questions and answers (FAQ)
Is it possible to turn off the LG Smart Inverter refrigerator at night to save money?
Technically this is possible, but the economic effect will be minimal and wear on the compressor will increase. Inverter models consume very little energy in temperature maintenance mode. Frequent start and stop cycles are more harmful to the motor than its constant operation at low speeds.
What to do if, after turning on, the refrigerator does not freeze?
After complete defrosting or long-term transportation, the compressor may take up to 24 hours to reach operating mode and gain temperature. If after a day the cold does not appear, check whether the doors are stuck and whether the fan is working.
How to turn off the sound signal of an open door?
In most models, the signal is turned off by closing the door. If the sensor is faulty and beeps constantly, you can temporarily turn off the sound by holding down the lock button or selecting the “Silent” mode in the settings, if such an option is provided by your model LG.
Are the time and temperature settings reset when disconnected from the network?
Yes, when completely de-energized (unplugged from the socket), all user settings, including the current one time and set temperature conditions are reset to factory values. They will have to be adjusted again after switching on.