What Causes Abnormal Noises When the Car Air Conditioner is Turned On?

[MacSara]

Here are the reasons for abnormal noises when the car air conditioner is turned on: 1. The car air conditioner's compressor is damaged due to lack of lubrication, worn shaft, inability to compress air normally, or air leakage. When the air conditioner compressor has problems, the car's air conditioning system will produce abnormal noises or fail to cool. 2. Blocked air conditioner vents. The solution to abnormal noises caused by blocked air conditioner vents is simple—just clean the vents promptly. It's important to note that the car air conditioner filter should also be cleaned and replaced regularly. Generally, it should be cleaned every 5,000 kilometers. 3. Worn fan blades. If the fan blades are worn, the fan bearings lack lubrication, or the fan blades are stuck by foreign objects, the car air conditioner may produce a rattling noise. In this case, the fan blades need to be removed for detailed inspection. 4. Engine noise. If the engine belt is loose or produces noise for other reasons. 5. Blower or air conditioner flap motor noise. Abnormal noises may occur due to foreign object blockage or damage to the components themselves.