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What causes the squeaking noise when the air conditioning is turned on in the H6?

1 Answers

MacIsla

07/30/25 4:07am

H6 air conditioning noise is generally caused by internal or external noise in the air conditioning system. Internal noise is usually due to air or moisture in the refrigerant, which creates noise during evaporation and expansion, making the user feel like the sound is coming from inside the dashboard. External noise is typically from the air conditioning compressor, and the sound can be felt near the compressor. Below are other possible causes of car air conditioning noise: 1. Impurities in the refrigerant: The noise is usually caused by air or moisture mixed into the refrigerant. 2. Damaged internal structure of the compressor: If the noise persists after refrigerant recharge and is located near the compressor, there is a high likelihood of internal mechanical damage to the compressor. If the noise recurs after some time and is located inside the dashboard, the efficiency of the dryer bottle may have decreased. The noise after the air conditioning starts is mainly the working noise of the compressor and is not considered a fault.

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