What to Do When the Car Air Conditioning Compressor Makes Noise When Starting?
1 Answers
Common causes of compressor noise are issues with the compressor's electromagnetic clutch. Since the compressor often operates under high load, the electromagnetic clutch has high requirements. Below are the specific reasons: 1. The compressor's electromagnetic clutch is a common source of noise: The compressor frequently operates under high load, shifting from low to high speeds, which places high demands on the electromagnetic clutch. Additionally, the electromagnetic clutch is usually installed close to the ground, often exposed to rain and dirt. When the bearings inside the electromagnetic clutch are damaged, noise occurs. 2. The tension of the compressor's drive belt also directly affects the lifespan of the electromagnetic clutch: If the drive belt is too loose, the electromagnetic clutch is prone to slipping; if the drive belt is too tight, the load on the electromagnetic clutch increases. Improper drive belt tension can lead to the compressor not working properly or even cause damage. When the drive belt is operating, if the compressor pulley and the generator pulley are not aligned in the same plane, it can reduce the lifespan of the drive belt or the compressor. 3. Repeated engagement of the electromagnetic clutch can also cause compressor noise: For example, insufficient generator output, excessive pressure in the air conditioning system, or excessive engine load can all lead to repeated engagement of the electromagnetic clutch. 4. The gap between the electromagnetic clutch and the compressor mounting surface: There should be a certain gap between the electromagnetic clutch and the compressor mounting surface. If the gap is too large, the impact increases; if the gap is too small, movement interference occurs between the electromagnetic clutch and the compressor mounting surface during operation, which is another common cause of noise.
