The first connection of LG series refrigeration equipment No Frost is a critical stage on which the durability of the compressor and the efficiency of the cooling system directly depend. Modern models are equipped with inverter compressors Linear Compressorwhich require strict time intervals after transportation before the first start. Ignoring the rules of settling can lead to failure of expensive components and loss of warranty from the manufacturer.
Unlike older models with a drip system, units No Frost have a complex air circulation system and electronic control, sensitive to power surges and improper installation. Before you press the power button, make sure that the device is placed on a level surface and that the shipping bolts and fasteners have been removed. Only an integrated approach will ensure the correct operation of all sensors and dampers.
In this material we will analyze in detail each step: from preparing the installation site to deciphering error codes on the display. You will learn why you should not load food immediately after turning it on and how to correctly set temperature conditions for different chambers. Following these recommendations will allow you to avoid typical mistakes that users often make during the initial operation of equipment.
Preparation for the first start and time intervals
The most important condition before turning on the LG refrigerator is time. If the unit was delivered horizontally or subjected to shaking, compressor oil may leak into the refrigerant circuit. It takes time for the oil to return to the compressor crankcase. In summer, when the air temperature is above +15°C, it is enough to keep the equipment in an upright position for 2–3 hours. In winter, especially after delivery in cold weather, this interval increases to 4–6 hours, and in extremely cold conditions - up to a day.
After the device has settled, it is necessary to conduct a visual inspection and remove all shipping elements. Pay special attention to the interior: remove all shelves, drawers and packing foam. Often, users forget to remove the fastening tapes from the door shelves or the tape from the evaporator inside the freezer. The presence of foreign objects may block the operation of the system fans No Frost, which will lead to overheating of the engine and noise.
Installation must be done on a flat, hard floor. The refrigerator legs are adjustable in height to ensure that the doors are at the correct angle for automatic closing. The gap between the rear wall of the device and the wall of the room must be at least 10 cm for free air circulation around the condenser. Insufficient rear ventilation leads to increased energy consumption and reduced service life.
⚠️ Attention: Do not try to turn on the refrigerator immediately after bringing it into a warm room from the cold. A sudden change in temperature can cause condensation to form on electronic boards, which will lead to a short circuit when voltage is applied.
Connecting to the electrical network and checking the voltage
The electrical network is the source of energy for your refrigerator, and its parameters must meet the manufacturer's requirements. LG refrigerators are sensitive to voltage surges. Before plugging into an outlet, make sure that the wiring in your home is in good working order and that the outlet is properly grounded. The use of extension cords, tees and low-quality surge protectors is not recommended, as they can cause contact heating and fire.
The best solution for protecting expensive equipment would be to install a voltage stabilizer or at least a voltage control relay. Power surges can damage the inverter compressor or electronic control module, which can be very expensive to repair. If you live in an area with unstable power supply, this step is mandatory to maintain the warranty and operability of the device.
After connecting to the network, the device may not make any sounds immediately. Modern LG models are equipped with an energy saving function and wait for commands from the user. An indicator on the control panel may light up or a sound signal may sound, indicating that the equipment is ready for use. If the model is not equipped with a display, the start of operation of the compressor can be judged by a quiet hum and vibration of the case, however, the first minutes of operation can be spent in diagnostic mode.
Activation sequence and mode settings
The activation process depends on the specific model and type of control panel. On refrigerators with a display, you need to find the button Power or On/Off. Some modifications require a long press (3-5 seconds) to activate or lock the childproof panel. After power is applied, the self-diagnosis system checks the status of all sensors, and all segments may light up alternately on the screen - this is a normal process (self-test).
☑️ First power-on algorithm
After activating the main cooling function, you need to set the temperature modes. By default, an LG refrigerator usually sets standard values: +3...+4°C for the refrigerator compartment and -18...-20°C for the freezer. To change parameters, use arrow buttons or separate knobs Fridge and Freezer. It is important not to set the minimum values immediately; let the system enter the mode smoothly.
The function Express Freeze (Fast freezing) or Super Cooldeserves special attention. These modes are designed to quickly cool large quantities of food. When you turn it on for the first time, you do not need to activate them, since the camera is already empty. Using these modes “idle” will only create extra load on the compressor without practical benefit.
What is Eco Friendly mode?
This mode turns off the refrigerator compartment, leaving only the freezer working. It's useful if you're going on vacation and need to keep food frozen but don't need refrigeration in the main compartment. When you turn it on for the first time, this mode should be turned off.
Temperature stabilization period and loading food
Many users make the mistake of loading food immediately after the refrigerator hums. The system No Frost must not only cool the air, but also warm itself up, stabilize the operation of fans and sensors. Complete cooling of an empty chamber to the specified parameters takes from 2 to 4 hours, and sometimes more, depending on the ambient temperature in the room.
Products should be loaded gradually. If you put a large amount of warm food into the freezer at once, it will cause a sharp jump in temperature, and the compressor will work hard trying to compensate for the heat. It is recommended to fill the chambers in small portions, taking breaks of several hours between loads.
The first time of operation (the first 12-24 hours), the refrigerator may operate louder than usual. This is due to the fact that the system reaches operating mode and the compressor operates almost without interruption. It is also possible that gurgling sounds may appear, which is normal for the circulation of refrigerant in the circuit. If after a day the noise does not subside or extraneous knocking appears, you should contact the service.
| Parameter | Normal value | Action in case of deviation |
|---|---|---|
| Settling time (winter) | 4–6 hours | Wait, do not turn on |
| Time to enter mode | Up to 24 hours | Do not load products |
| Temperature in cold storage | +3...+5°C | Check settings |
| Temperature in the MK | -18...-20°C | Check the closure tightness |
Deciphering the display and error codes at start
Modern LG refrigerators are equipped with an advanced self-diagnosis system. If, when turned on, a flashing indicator or error code lights up on the display (for example, rF, dS, Er FF), this indicates a malfunction of a specific unit. The code rF indicates a problem with defrosting the freezer, often due to a faulty sensor or heating element.
The indicator Ice Plus or the snowflake icon may flash if the door is not closed tightly or the seal is not sealed properly. When you turn it on for the first time, be sure to check if anything is preventing the doors from fitting tightly (packaging, shelves). Also make sure that the refrigerator is level and the doors are not warped.
It is important to distinguish between alarm signals. An intermittent beep usually means the door has been open too long. A continuous hum or hum may indicate that the refrigerator is not level and is vibrating. In this case, it is necessary to readjust the support legs using a building level.
⚠️ Warning: If you see an error code related to the inverter compressor (often indicated as a communication error), do not try to turn on the unit repeatedly in a row. This can permanently damage the electronics. Diagnostics by a specialist is required.
Typical problems and methods for eliminating them
One of the common problems during the first start-up is the formation of condensation or ice inside the chambers. In systems No Frost this should not happen. The reason lies in a violation of the seal or in the fact that the user opened the door too early, before the temperature stabilized, letting humid air inside. It is also worth checking the drainage hole inside the refrigerator compartment - it should not be clogged with packing foam.
The refrigerator may not freeze, even if the compressor is running. This often happens if the damper Air Flow (air circulation) is stuck in the closed position or frozen. On LG models, the shutter is electronically controlled. If you hear that the fan is humming, but the cold is not coming, it may take time to defrost the damper or repair the servo drive.
Increased noise levels can be caused by the condenser tubes touching the housing or cabinet walls when installing. Check to see if the refrigerator has moved close to the furniture. The vibration of the compressor is transmitted to the housing, and if there is a point of contact with a foreign object, a resonating hum is created. Move the unit a couple of centimeters and check the silence.
Frequently asked questions (FAQ)
Is it possible to turn on the LG refrigerator immediately after delivery if it was transported standing?
Yes, if transportation was carried out strictly in an upright position without strong shaking, just wait 30–60 minutes to stabilize temperature sensors and oil. However, manufacturers still recommend a holding time of 2 hours for guarantee.
Why does the LG No Frost refrigerator make the sound of flowing water?
This is the normal sound of refrigerant circulating through the system pipes. Also, in the defrost mode (which turns on automatically), the frost from the evaporator melts and water flows into the pan, which is accompanied by gurgling and splashing. This is not a sign of a breakdown.
Do you need to wash the refrigerator before turning it on for the first time?
Absolutely. Factory dust particles and the smell of plastic or packaging materials may remain inside. Wipe the internal surfaces with a soft cloth soaked in a weak soda solution and let dry before connecting to the network.
What should you do if the light in the camera does not light up after turning it on?
In modern LG models with LED backlighting, the light may not light up immediately if the door is not closed tightly or if the energy saving mode is set. Also check if the door closing sensor is blocked (usually located at the end of the case).