On most Jayco motorhomes the "House" or coach battery operates the levelers and generator. You mentioned it was charged, next step might be to check the connections at that battery for tightness and/or corrosion. Those circuits also usually have a large fuse near where they connect to the coach battery (my unit does) and if you have a multimeter you can check each side of the fuse(s) to make sure power is passing thru the fuse.
When you use the Aux Start button you are tying the coach and chassis batteries together, so a voltage problem is what I suspect. When you are unplugged, do all the coach 12-volt lights and systems work fine? Any chance you have a multimeter and can read the coach battery voltage when unplugged?
__________________
Rob R.
Akron, OH
2014 Seneca 37TS
Toads: 2019 Ford Edge ST or 2013 Ford Focus ST
|