Intermittent electrical system fault

[Louie]

I have a new leisure battery less than 12 months that charges to 12.7 on the EHU
Electrics work perfectly on EHU
Problem is no power to lights etc when EHU disconnected Never happened before Weirdly for no reason it does work then fails again Any clues?
Of coincidence the van had a mechanical service recently Probably not relevant?

 

[Matt-T68]

What system do you have on board Louie. May work on EHU and need switching over to LB when disconnected. We need a bit more info about your system

 

[Louie]

What system do you have on board Louie. May work on EHU and need switching over to LB when disconnected. We need a bit more info about your system

Its a Camper King conversion with their standard set up and control panel Cannot say anymore

 

[Matt-T68]

Never seen theirs but is this any use?

How To Use Your Power Management System

In this guide, we show you how to use the power management system that we install into all of the VW Transporters that we convert into campervans.

guides.camperking.co.uk

 

[Matt-T68]

Or this thread

Camperking leisure battery or fuse ?

Just back from weekend away where we found that we had no power in habitation , however we could use hook up So to determine is it battery or fuse ? I have info of camperking that the fuse is the green 30amp so if I pull it and replace ? Is there a way to test the battery to see if it’s not...

www.t6forum.com

 

[Louie]

Never seen theirs but is this any use?

How To Use Your Power Management System

In this guide, we show you how to use the power management system that we install into all of the VW Transporters that we convert into campervans.

guides.camperking.co.uk

Thanks I've seen the camperking instructions which don't help to find the fault My system has no switch to go from EHU to LB It's auto with the light switch acting as an on/off My fault is intermittent so should I discount he fuses? Also LB fully charged Total mystery

 

[Stay Frosty]

Pictures always help... the more the merrier.
If you can get to the leisure battery and any of the many connections eg. cable lugs a bit of poking and pulling wouldn't hurt either.