How to tell if Gen charges both House and Chassis battery's?

[docj]

I think the object in the OP's picture is just the boost relay. The writing clearly says "coil" so it's probably a relay of some sort. Since it's connected across the two battery banks, the boost relay would seem like a logical guess.

[Libero]

Sold my 01 in 2005 when I bought a 40' Dynasty - it looks like the boost relay in the pic. Had minor problems with the 40' Diplomat LE. But did have to replace the exhaust manifold gasket. I kept mine super clean and stored it in my environmentally controlled garage. It was in pristine condition when I sold it and the only reason I sold was to get the tag axel with 4 slides. Good luck. Suggest you take every wire off in the DC power system and clean, tighten and coat wherever it makes sense and put a device on to charge both ways. You can bypass the boost relay in an emergency to keep both sets of batteries charged but in the long run it is best to get a system that will charge both ways, yet isolates as required.

We have since downsized to CA Leisure Van Libero. Suits us best at this time in our lives but the Diplomat was a nice coach.

[Dad]

Originally Posted by Libero

Sold my 01 in 2005 when I bought a 40' Dynasty - it looks like the boost relay in the pic. Had minor problems with the 40' Diplomat LE. But did have to replace the exhaust manifold gasket. I kept mine super clean and stored it in my environmentally controlled garage. It was in pristine condition when I sold it and the only reason I sold was to get the tag axel with 4 slides. Good luck. Suggest you take every wire off in the DC power system and clean, tighten and coat wherever it makes sense and put a device on to charge both ways. You can bypass the boost relay in an emergency to keep both sets of batteries charged but in the long run it is best to get a system that will charge both ways, yet isolates as required.

We have since downsized to CA Leisure Van Libero. Suits us best at this time in our lives but the Diplomat was a nice coach.

Thanks for the info. We had to replace the exhaust manifold among other things but it is all stuff that if not taken care of goes bad so the previous owner must have let it sit. They took care of the inside but not so much the mechanical stuff.