Teekass Posted September 16, 2007 Share Posted September 16, 2007 I'm installing an electric fan, and want to be able to manually turn on the fan (via a toggle switch) in addition to the thermo switch that comes with it. My question is do I need to put diodes between the switches and the fan in the event that both switches are on at the same time? Thank alot, Chris Quote Link to comment Share on other sites More sharing options...
TimZ Posted September 16, 2007 Share Posted September 16, 2007 Nope. One caveat - If anything else is using the thermo switch, then it will also be activated by the manual switch. Quote Link to comment Share on other sites More sharing options...
Teekass Posted September 16, 2007 Author Share Posted September 16, 2007 Nope.One caveat - If anything else is using the thermo switch, then it will also be activated by the manual switch. The fan is the only accessory on this circuit....good point though, not sure I would have thought of that! Without meaning to, you also answered my next question. You let me know that I don't need a diode in this case, so I was trying to think of when I Would need to use diodes. If I had another accessory on this circuit that I wanted to be acitviated only by the thermo switch (or only by the toggle switch), I could see where a diode would allow this. Thanks for the reply. Quote Link to comment Share on other sites More sharing options...
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