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What causes abnormal noise in the car air conditioner?

1 Answers

EmmanuelDella

07/24/25 5:14pm

The reasons for abnormal noise in the car air conditioner are as follows: 1. When the car fan receives the command to turn on the air conditioner, it will operate at high speed. If the fan becomes unbalanced due to dirt accumulation, the noise will increase, accompanied by body vibration. 2. Noise can also occur when the blower motor bearings are worn or lack lubricating oil, usually producing a sharp sound. 3. Timely replacement of the air filter is necessary, as an unbalanced and dirty filter can also cause resonance and abnormal noise. Extension: The car air conditioning system, abbreviated as car AC, is used to regulate and control the temperature, humidity, air cleanliness, and airflow inside the car cabin to an optimal state. It provides a comfortable riding environment for passengers, reduces travel fatigue, creates good working conditions for the driver, and serves as an important ventilation device for ensuring safe driving.

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