Why Does the Car Air Conditioner Squeak When Turned On?
2 Answers
Air conditioner noise is generally caused by the air conditioner compressor, and the sound can be felt near the compressor. Such noise can be divided into three situations: 1. Contaminated refrigerant: Caused by air and moisture mixed into the refrigerant; 2. Internal machine issues: Damage to the internal mechanical structure of the compressor; 3. The dryer itself: The dryer has been used for a long time, leading to reduced efficiency; Additional information: Tips for using the air conditioner in the car: On hot days, after getting into the car, open all the windows first, turn on the external circulation system of the air conditioner to expel all the hot air. After the temperature inside the car drops, close the windows, then turn on the air conditioner and adjust it to a suitable temperature.
I've always found the squeaking noise when the car air conditioning is turned on quite annoying. The issue could stem from several places: the most common is the aging or loosening of the air conditioning compressor belt, which causes friction and noise when the weather gets hot; or small stones or dust stuck on the fan blades, creating friction sounds when they rotate; it could also be due to worn internal bearings in the compressor, causing unstable operation and harsh noises; or even foreign objects like leaves or dirt entering the air conditioning system, blocking a certain part. I encountered this issue when I first bought my car and tried to locate the source of the noise by opening the hood, but it's best not to tamper with it to avoid damaging the car. Once you notice the noise, it's important to take it to a repair shop for inspection promptly, otherwise, the noise will only get louder, and the cooling effect will deteriorate. Regular cleaning of the fan and replacing the belt can prevent these issues, especially since they're more likely to occur in summer when the air conditioning is used more frequently. Overall, ignoring these problems could lead to more severe damage, like needing to replace the compressor, which would be much more expensive.
