Aux fan fuse keeps blowing - short?

[R1990]

I posted this on the tech forum but I thought I'd give the R129 forum a shot:

I've got a 1990 300SL-24 with a short circuit problem in the auxilliary fan circuitry. Basically, everytime the aux fans would come on, either by A/C or water temp, the aux fan fuse will blow immediately. I checked the wiring on both fans and nothing seems to be out of place or grounding anywhere. All insulation seems fine. Im a bit challenged when it come to electrical issues so I would appreciate if someone could help me out. Does anyone have a wiring diagram for this application? I was thinking as a last resort, just to re-wire the aux fan system but I would need a wiring schematic to do so. I think that a 1990 -up 300CE or 300E would be similar since we share the same engine? If anyone has any advice or suggestion, please post. Thanks in advance

[tecqboy]

Does the fan spin freely? If it has bad bearings or is jammed, it will blow the fuse. Also, there is the possibility that water has entered the motor and corroded it.