Gremlins in the Power System

Discussion in 'Tech/Mech General' started by BillCrabtree, Aug 13, 2011.

  1. BillCrabtree

    BillCrabtree Read Only Funster

    Aug 13, 2011
    I have a 1991 Itasca Sunflyer MH. Recently we made a trip and when I got to my destination, I found that all my clearance lights, rear heater, and other chassis electrical were on. I could not get them to turn off. I have scoured my wiring system and diagrams looking for the problem and can not find where it is.
    The disconnect switch works fine and I can disconnect power from the coach batteries. This will shut the power off to the chassis. My headlights, parking lights and the like all work fine off the chassis battery. But, if I plug into shore power, the chassis system powered back up. Any advice will be apprectiated.
  2. pappajohn

    pappajohn Funster Life Member

    Aug 26, 2007
    YO11 2BD
    Hi Bill and welcome.

    isolating the house (coach) batteries shouldnt isolate the chassis battery...the chassis battery should have its own isolator.

    clearance light should only run on the main light switch ie: chassis battery.

    once the main (headlamp) light switch is turned off you should have no running lights at all.

    sounds like a major wiring short somewhere up the back of the dashboard or between the house/chassis battery isolator switchs.

    ask the same question on funs sister site RVOC (RV owners club)..american RV,s only site and free to're sure to get a positive response there.

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