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What Causes Sudden Loss of Airflow in Car AC?

1 Answers

ClaraLee

07/30/25 7:10am

Sudden loss of airflow in car AC is mainly caused by three common issues: blower motor failure, AC filter malfunction, and control system failure. Below is relevant information about car AC systems: 1. AC Types: Based on control methods, they are divided into: manual (adjusting temperature, fan speed, and air direction via function keys on the control panel) and electro-pneumatic control (using vacuum control mechanisms to automatically regulate temperature and airflow within preset ranges when function keys are selected). 2. AC Components: Modern AC systems consist of refrigeration systems, heating systems, ventilation and air purification devices, and control systems.

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