What Causes Loud Abnormal Noise When the Nissan Sylphy's Air Conditioner is Turned On?

[LeBryce]

"The causes of abnormal noise when the Sylphy's air conditioner is turned on include air conditioning compressor failure, slipping or worn air conditioning belt, blocked air conditioning pipes, electromagnetic clutch failure, or foreign objects in the air vents. Air conditioning compressor failure: If the air conditioning compressor malfunctions, it can cause the car's air conditioner to produce abnormal noise or fail to cool or heat properly. This situation is relatively complex, and it's best to have a professional at a repair shop or 4S store conduct a detailed inspection. Slipping or worn air conditioning belt: If the air conditioning belt is loose, it may slip or idle, causing abnormal noise. If the belt is severely worn, friction can also produce noise. In this case, it's best to directly replace the belt with a new one. Blocked air conditioning pipes: If the pipes in the air conditioning system are blocked, internal gas cannot circulate normally, leading to abnormal noise. This requires inspection and cleaning of the entire piping system of the car's air conditioning. Electromagnetic clutch failure: If foreign objects enter the electromagnetic clutch, it can cause the bearings to produce noise. This situation requires cleaning and repair of the electromagnetic clutch. Foreign objects in the air vents: If there are foreign objects in the air vents, the air conditioner will naturally produce noise during operation. Simply cleaning the vents can resolve this issue."