Electric Fan Controller short to ground

Scott 88-1JZ

New Member
Dec 9, 2007
122
0
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California
Hey guys,

I have a fan controller hooked up to my dual electric fans. I think it is this model.

http://www.summitracing.com/parts/FLX-30332/

I was working around it and my socket wrench (undoing the headlight bolt on the radiator support) touched the metal wire for the temperature probe and started to arc/ground out. A foot of the wire started to glow red hot and i had to knock the wire/wrench away (burning my thumb in the process) . Being a temperature probe I would not think that this wire would be hot and not insulated. Does anyone have an insight as to what happened or what would cause this wire to short out? The wire is always in contact with my aluminum radiator as well.

Below is a pic I have access to atm, it shows the metal wire coming out of the radiator and you can see the corner of the fan controller. There is some excess taht is coiled up by the controller and that is where the incident occurred.
5019530820_e6e673a118_z.jpg