Battery boost

[Britdude]

2008 Winnebago 39Z

So we are parked up in Mexico and I went to do my monthly start up and the bus batteries are flat. I’m going to fit new batteries but my question is the bus has a battery boost feature which doesn’t seem to work (ie you can boost the engine batteries from the house batteries). It has had solar panels retro fitted before we brought it. Would the battery boost feature have been deleted because of the solar? Any thoughts why this wouldn’t work?

Many thanks

Rick

 

[Javaman]

I have/am having similar issues in my 2011 sunstar 39f. For me it appears to be my solenoid/relays which I am having ongoing issues with