Why does my Ford Fiesta make a strange noise when I turn on the AC?

I recently purchased a Ford Fiesta and I've noticed that whenever I turn on the air conditioning, there is a strange noise coming from the engine. Is this something to be concerned about? What could be causing this noise?

It is likely that there is an issue with the AC compressor or the pulley. It is best to take it to a mechanic to diagnose and fix the problem before it gets worse.

I had a similar issue with my Ford Fiesta and it turned out to be a loose belt. I had it tightened and the noise went away. I suggest checking the belts first before taking it to a mechanic.

You might also want to check the refrigerant levels in your AC system. If they are low, it could be causing the compressor to make strange noises.