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		Yep, as I said , I quit flying my ultralite airplane for the same reason, likely pilot error. I know me, and I cant be trusted with things like that.
 
 Where is a good place to get the needed stuff to make the fans work? do they have that stuff at the local auto store? or does it have to be a speed shop?
 
 
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		switch the hot, never the ground.  Yeah, yeah, it will work both ways.  But just remember:  never switch the ground. 
 
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		thanks Mike.
 
 How come "never switch the ground"?
 
 
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		I'm running the painless unit with relay and 190 F thermostat.  I also have a toggle for manual override if the thermostat fails for any reason.  
 
 Kitz