Courtesy light interrupting leisure battery power

[Zave]

This is a bit of a strange one or me being a numpty.

I got my interior lights wired through my factory leisure battery. Professionally done 5 years ago along with carpeting etc. I've not had a problem.

Fast forward to now and I've replaced the AGM with lithium myself and "tidied" up the wiring.

Now if I open/shut the sliding door during the courtesy period it appears to break all of the leisure battery circuits.

???

 

[Sim60]

Lots of good info here on courtesy light wiring.

wire interior lighting to leisure battery

has anyone tried wiring all the interior lights eg when doors open, etc., so they run off the leisure battery? I seem to remember somewhere someone said they run everything that can be off the leisure battery and I believe they included this I'm not sure. it's probably a nightmare to do it and...

www.t6forum.com

But I guess the first thing to do is have another look at your ‘tidying up’
Is the leisure battery -ve/GND circuit correct?

Simon

 

[Zave]

Lots of good info here on courtesy light wiring.

wire interior lighting to leisure battery

has anyone tried wiring all the interior lights eg when doors open, etc., so they run off the leisure battery? I seem to remember somewhere someone said they run everything that can be off the leisure battery and I believe they included this I'm not sure. it's probably a nightmare to do it and...

www.t6forum.com

But I guess the first thing to do is have another look at your ‘tidying up’
Is the leisure battery -ve/GND circuit correct?

Simon

Yeah. I took a look at that thread and it blew my mind a little. As you say, it must be something with my "tidying up". I've got my head around domestic upstairs/downstairs hall way lighting before. Sure I can fix this with some trial and error.

 

[Zave]

I've checked everything and it's not the courtesy light that is the problem. I have isolated the problem to an interface between the CTEK250SE and my lithium battery. I've checked the CTEK wiring and it's all ok (including the black/red wire going to the positive to get the correct lithium charge profile). When I remove the CTEK everything works fine. I'll raise a new thread for this problem as the title to this one is now obsolete.