What Are the Reasons for Abnormal Noises When the Car Air Conditioner Is Turned On?
1 Answers
Abnormal noises from the air conditioner may be caused by the following reasons: 1. Abnormal noises inside the control panel: This is usually due to the expansion of the refrigerant, which may contain water or air. In this case, simply replacing the refrigerant can solve the problem. Another reason could be overcharging of the refrigerant, which can also cause abnormal noises. Releasing some refrigerant appropriately can resolve the issue. 2. Compressor abnormal noises: This is generally due to a compressor malfunction, which can have various causes, such as worn-out compressor bearings or internal plungers that need replacement, insufficient belt tension, or belt slippage, all of which can lead to abnormal noises. 3. Blower abnormal noises: For example, foreign objects inside the blower, lack of lubrication, or severe wear of the blower itself can cause abnormal noises. 4. Electromagnetic clutch: Since the electromagnetic clutch is close to the ground, it is prone to dirt ingress, which may cause bearing issues and result in abnormal noises. 5. Air filter element: If not replaced for a long time, foreign objects may accumulate in the air ducts, leading to abnormal noises. 6. If the noise reappears after a repair and is concentrated inside the control panel, it may indicate reduced efficiency of the dryer bottle. In most cases, this points to an issue with the air conditioner's compressor. The specific situation should be analyzed based on different causes, so it is recommended to visit a 4S shop for an inspection first to identify the problem before proceeding with repairs.
