1. There is lubricating oil in the bottom of the compressor. If the refrigerator is lifted upside down or tilted excessively during transportation, the lubricating oil will flow into the refrigeration system and affect the normal operation of the refrigeration system.
2. After the refrigerator is transported and placed steadily, let it stand for more than 4 hours and energize it, so that the lubricating oil that enters the refrigeration pipeline will flow back into the compressor and the refrigerant will be stabilized.