I don't think this is a very "correct" forum to this question,
but oh well... 
I am not very familiar with electrical motors and fans, so i am
not sure if what i said is correct or not
What kind of problems did you faced with your electrical
fan?
Like what kenneth had said, could it be just a blown fused?
Usually there are two main failure with regards to the fan
motor.
First one would be the starting coil failure, Second one would
be the running coil failure.
Symtomps of starting coil failure would be everytime you start
the fan, you hear a loud humming sound, but the fan won't spin.
Then you have to manually spin the fan to get it started, then the
fan will spin continuously.
Symtomps of running coil failure would be everytime you start
the fan, it spins up, then slows down, then spins up again.
Also if the ball bearing is stuck it would cause the fan not to
spin as well.
Hope it helps