2007 AC Clicking Sound

I have a slight clicking vibration in the AC fan. It sounds like the fan blades are hitting the housing. It's very faint and intermittent.

Anyone have this too?

People have been passing remarks on how the plasmacluster system emits some kind of static electricity noise near the driver's vent, it could be that.

People have been passing remarks on how the plasmacluster system emits some kind of static electricity noise near the driver's vent, it could be that.I was thinking the same thing until noticed his car is a SE V6, which doesn't come with the Plasmacluster. However, regarding the Plasmacluster, here is the link: http://www.toyotanation.com/forum/showthread.php?p=1259065#post1259065