Why is the Vauxhall Corsa making a screeching noise when I turn on the AC?

I recently noticed that my Vauxhall Corsa starts making a high-pitched screeching noise as soon as I turn on the AC. It is quite annoying and I'm worried if it could signal a bigger issue. What could be causing this noise and what should I do to fix it?

The most likely reason for the screeching noise is a worn out AC belt. Check the belt for any signs of cracks or wear and tear. If it looks worn out, it should be replaced in order to fix the issue. It is also possible that the belt is incorrectly tensioned, in which case it should be adjusted by a professional mechanic.

Another common cause of the screeching noise could be a damaged AC compressor. If the compressor is not functioning properly, it can make loud noises when the AC is turned on. It is recommended to have a professional mechanic inspect the compressor and possibly replace it if necessary.

In some cases, the screeching noise could be coming from a loose or damaged AC pulley. This can also cause the AC belt to make loud noises. Have a mechanic check the pulley and replace it if needed.

It is important to get this issue fixed as soon as possible to avoid any further damage to your Vauxhall Corsa. A faulty AC system can also affect the engine's performance. Therefore, I suggest taking your car to a trusted mechanic for a proper diagnosis and repair.