We have a 1999 Newmar MA DP Cummins 330ISC on a Spartan chassis.
In the process of putting in new House batteries (4X6volts),
I accidently shorted the leads. So I took all the house batteries
out, cleaned the tray and called a local Rv electrician. He could not
remember which leads go where. So he tried a couple of combinations
with no success and this is what happened:
The engine now does not start. It cranks but does not start. I have
no air pressure (front & rear), no oil pressure, the
Allison Tranny "warning light" is on. I checked all fuses with a
continuity tester and only found the Dash A/C blown and 30amp
instead of 25amp was in the VAC pump fuse. All other fuses (battery
isolater, House Batteries 40amp fuse, etc.) were fine.
After sometime, I removed the leads from the Chassis batteries to
erase computer memory and codes, still no improvement.
Is a short from the house batteries responsible for this? I was
under the impression that the house batteries have nothing to do
with the engine and drivetrain? Are teh house batteries needed to
get Air pressure? I think that I may be missing a fuse location but
I am not sure. My MADP did not come with a manual on fuse locations?
Interestingly, when the genset is running everything works fine but
the engine still does not start.
I think that i have a better idea of how to connect the house
batteries back as I was able to trace the Ground from the chassis
rails back to the batteries comp. i am worried about reconnecting
before I get some feed back from some of you experienced folks.
Any help or advice would be enormously appreciated.