The lack of refrigeration may be due to lack of fluorine or clogged filters. The principle of air conditioning is that hot air is sucked into the compressor, cooled by the compressor, and then released back into the space for refrigeration. If something goes wrong with this cycle, the air conditioner will not cool or cool down.

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1, fluorine deficiency. If the air conditioner is short of fluorine, the boiling point of the refrigerant will decrease, and the air conditioner will cool slowly or directly. In this case, it is necessary to fill the air conditioner with fluorine through the fluorine pipe.

2. The filter screen is blocked. When the filter screen is blocked by sundries, the air cannot circulate and the air conditioner cannot complete the refrigeration process. At this time, it is necessary to disassemble the filter screen for corresponding cleaning, and then put it back after cleaning.

3. Insufficient refrigerant. In the absence of refrigerant, the compressor cannot perform refrigeration and high pressure, and the air conditioner cannot perform refrigeration. At this time, it is necessary to add refrigerant. It should be noted that the refrigerant is inside the compressor and needs to be added by professionals. Do not add it yourself. Improper operation can easily damage the compressor and cause irreversible damage to the air conditioner.

The copper tube is too long. Copper tube is the pipe connecting indoor unit and outdoor unit. If the copper tube is too long, the hot air absorbed by the air conditioner will inevitably be lost, and the cold air generated by the circulation system will be relatively reduced. At this time, it is necessary to reinstall the copper tube and reduce the length of the copper tube.