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Why is the air volume still small when the car air conditioner is turned to maximum?

1 Answers

Bo

07/29/25 6:12pm

If the air volume is relatively small when using the external circulation mode but normal with internal circulation, it is likely caused by a clogged cabin air filter, in which case the filter needs to be replaced. If the air volume remains small regardless of the circulation mode, it may involve issues with internal air duct flaps or similar components. In such cases, it is recommended to first inspect the cabin air filter. During daily vehicle operation, it is important to maintain the air conditioning system by regularly replacing the cabin air filter. Bacteria can easily grow on the filter, causing a musty odor in the air conditioning system. Additionally, the condenser should be cleaned periodically, and the radiator should be removed for thorough cleaning. The air conditioner can accumulate a significant amount of dust during use. Periodically setting the air conditioner to maximum fan speed can help blow out loose dust from the inner surfaces of the air ducts, which is a simple method to maintain cleanliness. When using the air conditioner for the first time in summer, it is advisable to inspect the system, such as checking the refrigerant level via the reservoir, whether the cabin air filter is excessively dirty, and if there are any foreign objects in the radiator.

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