Originally Posted by hbn7hj
We have had several with that problem. We think the generator is missing the ground when not connected to the engine battery but no one with the problem has let us know what the cause or solution was. It could be the 12 volt line is interrupted with the engine off. The generator requires an external 12 volt source to run.
It has always been on Sprinters. Let us know when you solve it.
I am thinking I will call the company that built this wide body and see what they have to say I can't even get it into a repair shop for a few weeks