The air conditioning pressure of zero is usually caused by a leak inside the system. The air conditioning system is a closed system, composed of compressors, evaporators, condensers, dryers and other components, of which the compressor is the core component of the air conditioning system, it is responsible for the low pressure and low temperature refrigerant inhalation, compression will be high pressure and high temperature refrigerant discharge, resulting in refrigeration effect.
If there is a leak inside the air conditioning system, the refrigerant will escape from the leak, causing the air conditioning pressure to decrease and the final pressure to zero.
On the one hand, the expansion valve may be frosted and blocked, making the refrigerant unable to circulate in the system. At this time, the refrigerant should be repeatedly vacuumed and re-added.
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On the other hand, the expansion valve temperature package may be damaged, resulting in the expansion valve is not opened, at this time should check the temperature package, after understanding the reason, we should also pay more attention to the use of air conditioning.
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Both the high and low pressure pipes of the air conditioner are negative pressure, which is only a phenomenon when the system is vacuumed before preparing to fill the refrigerant.
The common reasons for the air conditioner pressure to be 0 are as follows:
Refrigerant leakage, refrigeration system failure, compressor failure, valve problems, low refrigerant charge, etc.
Please check and repair the system through professional technicians to determine the specific cause and solve the problem.