Why does my Kia Sportage make a strange noise when I turn on the AC?

I've noticed that whenever I turn on the AC in my Kia Sportage, there is a strange noise coming from the engine. It sounds like a whirring or grinding noise. What could be causing this and is it something I should be concerned about?

The strange noise you are hearing is most likely caused by an issue with the AC compressor. If you hear a grinding noise, it could be a sign that the compressor is failing and needs to be replaced. It's important to get this checked out by a mechanic as soon as possible to avoid further damage.

Another possible cause for the strange noise could be a problem with the AC belt. If the belt is worn or loose, it can cause the AC system to make strange noises while running. It's important to get the belt checked and replaced if necessary.

In some cases, the strange noise when the AC is turned on could be a sign of low refrigerant levels. This could be due to a leak in the system or simply needing a recharge. A professional can diagnose and fix this issue.