What Are the Reasons for Insufficient Airflow from Car Air Conditioning?
1 Answers
If the airflow is relatively small when using the external circulation mode but normal when using the internal circulation mode, it is likely due to a clogged cabin air filter. In this case, replacing the cabin air filter with a new one should resolve the issue. If the airflow remains small regardless of the circulation mode, it may involve issues such as internal air duct flaps. This situation is less common than the former. It is recommended to first check the cabin air filter. Replace the cabin air filter if it is too dirty and blocking the airflow into the car. When the refrigeration system is operating, the refrigerant circulates in different states within this closed system, with each cycle consisting of four basic processes: 1. Compression process: The compressor inhales low-temperature, low-pressure refrigerant gas from the evaporator outlet and compresses it into high-temperature, high-pressure gas, which is then discharged from the compressor. 2. Heat dissipation process: The high-temperature, high-pressure superheated refrigerant gas enters the condenser, where the pressure and temperature decrease, causing the refrigerant gas to condense into a liquid and release a significant amount of heat. 3. Throttling process: The higher-temperature and higher-pressure refrigerant liquid passes through the expansion device, where its volume increases, and the pressure and temperature drop sharply, exiting the expansion device as a mist (fine liquid droplets).
