Where Do the Common Issues with Car Air Conditioning Damage Generally Occur?

[AndrewLee]

The reasons for car air conditioning not cooling and methods for air conditioning maintenance are as follows: 1. Damage to the air conditioning compressor, throttle valve, or expansion valve: There's a saying in the air conditioning compressor circle, 'Low pressure high, high pressure low, replace the compressor.' The probability of air conditioning compressor damage is not high, but faults in the expansion valve and throttle valve directly lead to poor air conditioning cooling. 2. Lack of refrigerant: Because the sealing device of the air conditioning is not absolute, the refrigerant in general air conditioning tends to dissipate. Therefore, ordinary vehicles need to have refrigerant added every 2-3 years. Some cars may even require it once a year. If the car's air conditioning and cooling equipment are not functioning well, after adding refrigerant for a period, it will start to cool poorly. When this happens, it's likely that the condenser is leaking. The method to check for leaks is quite laborious. Generally, fluorescent agent is added, and a special glass is used to inspect, then the leak point can be found.