[TJ Clark]

So I found a low volt system that is not getting full power. My front window shades while getting power they are not getting full voltage or amperage.

I have not yet put a voltage meter on them but in activating the switches I get a slight sound, no movement and then silence. So some power it there. Nothing changes with the coach batteries on or off or the engine running. I also get a dash light "PRE HEAT".

I'm beginning to think I need a great huge diode at the end of my new coach lithium's and then connect everything back the way it was.


What are your thoughts for the next step of troubleshooting?


Thanks.