Oldsmobile/Buick Repair: Cooling Fan 1999 Buick Century, fuse box, buick century

Question
My cooling fan is kicking on in the middle of the night long after I go to bed (engine cold).  I am having to charge my battery in the snow every morning.  Help!!!

Answer
Hi
I would HIGHLY suspect one of the three relays that controls fan operation.
they are all located in the underhood fuse box, on the passenger side close to the battery.
which one? I cannot say. If it happens every night, you could pull one a night, until it does not kill battery.
You could wiggle each relay and try to force it to reveal a fault.
That would be my best suggestion.
It MAY be a wiring issue.
There is an outside chance the fuse box itself MAY also be at fault.
If all these check out, I would take it a a shop and have them try to pinpoint concern.
I Hope this helps
Good Luck
Pawl