What Causes No Airflow in the First and Second Gears of a Car's Air Conditioning?
1 Answers
No airflow in the first and second gears of a car's air conditioning may be due to: a faulty blower motor or a clogged air filter. Below are the main reasons for no airflow in a car's air conditioning and usage precautions: Faulty Blower Motor: The blower motor is the core component that determines whether the air conditioning produces airflow. If it is damaged, the car's air conditioning will have no airflow. Causes of a faulty blower motor may include overheating damage to internal coils or capacitor failure. Solution: You can determine if the blower motor is faulty by turning the car's air conditioning speed and airflow to maximum and listening for the blower motor's sound. If a fault is detected, it is necessary to go to a 4S shop or repair shop for maintenance. Clogged Air Filter: A clogged air filter is one of the reasons for blocked air ducts and the most common one. Outside air passes through the air filter before entering the car, which absorbs many airborne particles, making it prone to clogging. Solution: You can remove the air filter to check if it is clean. If it is excessively dirty, it is recommended to replace it with a new one. Air Conditioning System Usage Precautions: The car's air conditioning system is mostly inactive during winter. Before initial startup, check the belt tension and let it run at engine idle for a while to observe if it starts normally and check the cooling effect during operation. If it does not start or the cooling effect is poor, go to a service station for inspection. Since the air conditioning system is prone to sucking in dust and bacteria during use, after prolonged use, the system should undergo dust and bacteria removal to ensure the health of the car's occupants. After running the air conditioning for a while, observe the engine's water temperature. If the water temperature rises, it may be caused by a dirty condenser surface (e.g., adhering to willow catkins, dust, etc.), non-working electric fans, or a faulty pressure controller. If these issues occur during use, stop the air conditioning system immediately and go to a service station for repair.
