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How to test if Auxiliary fan is bad? How to test if Auxiliary fan is bad?
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Old 08-03-2010, 02:39 AM
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Join Date: Jun 2009
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Quote:
Originally Posted by coolusa View Post
red is hot,orange is ground & black is negative
Surely ground and negative on a negative earth 12V vehicle are the same thing?

I am not so sure that hooking up 12V to the wires of the Aux fan is such a good thing. My understanding is that the fan is a variable speed unit and that the speed of fan is defined by a signal on one of the wires... Without knowledge of the type of control signal I think you could risk cooking the speed controller by thumping 12V down the wrong wire!
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