I've also seen electric fans hooked up reverse polarity. No kidding - It was done by a pro too... I got involved because I'd built the engine (TVR chassis/TR6 engine) for a restoration specialist. So, been doing any wiring lately? :) --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .