What Causes Abnormal Noise in Car Air Conditioning Compressors?

[DeMarley]

Specific causes of abnormal noise in car air conditioning compressors include contamination of the electromagnetic clutch, loose drive belts, repeated engagement of the electromagnetic clutch, and insufficient lubrication. The detailed explanations are as follows: Contamination of the electromagnetic clutch: Since the electromagnetic clutch is installed relatively close to the ground, prolonged driving can cause it to become contaminated with dirt or mud, leading to bearing damage and resulting in abnormal noise. Loose drive belts: The operation of the car air conditioning compressor places high demands on the electromagnetic clutch. Loose drive belts increase the load on the electromagnetic clutch, which can easily cause damage to the clutch and, in severe cases, lead to compressor burnout. Repeated engagement of the electromagnetic clutch: Repeated engagement of the electromagnetic clutch reduces the generator's power output, causing insufficient working voltage for the compressor and resulting in abnormal noise. Insufficient lubrication: Lack of lubrication inside the compressor. After prolonged use, the compressor should be properly lubricated to avoid abnormal noise or failure due to friction.