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Why Does the Compressor Belt Slip When the Air Conditioning is Turned On?

1 Answers

CorbinMarie

07/29/25 7:08pm

When the air conditioning is turned on and the compressor belt slips, it is because the belt is too loose. Introduction to the Air Conditioning Belt: The multi-ribbed belt, also known as the air conditioning belt, functions to drive the generator, air conditioning compressor, and power steering pump. It is mounted on the crankshaft pulley and tensioned by the air conditioning belt tensioner. When this belt is damaged, you may experience heavy steering due to the lack of power assistance. If the air conditioning is turned on, the compressor will not start, resulting in no cooling. Impact of Belt Tension on Air Conditioning: The tightness of the compressor drive belt directly affects the performance of the car's air conditioning system. If the compressor belt is too loose, it can lead to poor cooling performance in the air conditioning system. Timely adjustment of the compressor belt is necessary. If the belt slips severely when the air conditioning is started, a "squeaking" noise may occur, indicating that the belt should be replaced. The tension of the compressor drive belt also significantly impacts the lifespan of the electromagnetic clutch. If the drive belt is too loose, the electromagnetic clutch is prone to slipping. Conversely, if the belt is too tight, the load on the electromagnetic clutch increases. Improper belt tension can lead to the compressor not working properly or, in severe cases, compressor damage. Additionally, if the compressor pulley and generator pulley are not aligned in the same plane during operation, it can reduce the lifespan of the drive belt or the compressor.

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