Why is the air conditioning in the Baojun 730 not cooling enough?

[LeRonan]

The reasons why the air conditioning in the Baojun 730 is not cooling enough are as follows: 1. Excessive refrigerant causing insufficient cooling capacity: Excessive refrigerant is usually caused by overfilling during maintenance, as there is a specific requirement for the proportion of refrigerant volume in the air conditioning system. If the refrigerant is indeed excessive, you can slowly release some from the low-pressure side maintenance port of the air conditioning system. 2. Insufficient refrigerant causing a shortage: The main reason for insufficient refrigerant is usually a leak in the system. If there is insufficient refrigerant in the air conditioning system, the amount of refrigerant sprayed into the evaporator from the expansion valve will also decrease, affecting the evaporation process. 3. Excessive impurities in the refrigerant and lubricating oil, causing minor blockages and insufficient cooling capacity: If there are too many impurities in the refrigerant and lubricating oil throughout the air conditioning system, the filter screen of the filter will inevitably become clogged, reducing the flow of refrigerant, increasing resistance, and decreasing the amount of refrigerant flowing to the expansion valve, leading to insufficient cooling capacity. 4. Moisture infiltration in the air conditioning refrigeration system causing insufficient cooling: When the desiccant in the dryer is saturated with moisture, water can no longer be filtered out. When the refrigerant passes through the expansion valve's throttle hole, due to the drop in pressure and temperature, the water in the refrigerant will freeze in the small hole, causing poor refrigerant flow, increased resistance, or complete blockage. After stopping the system for a while, the ice will melt, and the refrigeration system will return to normal.