Consistent charging issue ?

[wesleyc]

I have seen a few threads where 993 owners have to replace their alternator wireing harness due to excessive heat. I have replaced alt. battery and voltage reg. is there a fuse I'm overlooking or is my engine cooling fan running too long on high ? It runs 20 minutes after I park it even if I just travel a block ? Thanks all for the help in advance. Checked with porsche. New harness has been installed. Guess I can rule that one out..