My CPU fan recently started clicking. (Hyper 212 Evo). Ive checked for cables that could have been in the way but it seems to just click without reason. I purchased it 2 months ago so it's still under warranty so I can return it.
So return it? If you don't see any obvious objects obstructing it, it's probably something inside, which will be difficult for you to fix. Get a new fan that you can mount on the cooler or send the thing in for RMA.
I have a CoolerMaster V8 that seems to be doing the same thing but I can't see through the frame to the fan to see if anythings in the way. So, if you ever find out what caused the clicking noise, please let me know. I need to know whether or not to replace this thing.