Causes and Solutions for Abnormal Noise in Car Air Conditioning Compressors

1 Answers
AugustFitz
07/30/25 3:53am
Causes and solutions for abnormal noise in car air conditioning compressors are as follows: 1. Electromagnetic clutch failure: Due to the electromagnetic clutch's proximity to the ground, long-term driving can cause it to become contaminated with sewage or mud, leading to internal bearing damage and resulting in abnormal noise. Replacing the compressor bearing can resolve this issue. 2. Loose compressor drive belt: The operation of the car air conditioning compressor places high demands on the electromagnetic clutch. A loose drive belt increases the load on the electromagnetic clutch, which can easily cause damage to the clutch and, in severe cases, lead to compressor burnout. Damaged internal parts can be replaced, or the entire assembly can be replaced. 3. Insufficient generator output: Repeated engagement of the electromagnetic clutch can cause insufficient generator output, leading to inadequate working voltage for the compressor and resulting in abnormal noise. 4. Excessive or insufficient clearance between the electromagnetic clutch and the compressor: Excessive clearance between the electromagnetic clutch and the compressor increases impact, while insufficient clearance causes interference, both of which can lead to abnormal noise. Inspect the clutch electromagnetic coil and adjust the clutch clearance as specified. 5. Lack of lubrication: Insufficient lubrication inside the compressor can cause abnormal noise due to friction. After prolonged use, appropriate lubrication should be added to prevent abnormal noise or compressor failure.
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