If the refrigerator keeps off for long time. It should be power on to let the compressor work for a few hours at least once a half month to avoid the cooling system pipeline being corrosion which can lead the refrigerant leakage.
The refrigerator should be located in a ventilated place. All around should has enough room to facilitate the refrigerator ventilation cooling to improve the working efficiency
Please adjust the temperature reasonably. Usually, the temperature can be set at -18 ℃ for freezer and 4~8 ℃ for fridge. The lower the temperature is set, the more consumption the compressor will cost.
Clean the refrigerator termly refer to the video<How to clean the refrigerator>