2015 Hobby Siesta lighting help

[RiggRegg]

Hi everybody
Trying to see if anybody can help me with hobby motorhome lighting issue!

I went into my motorhome this evening and there seems to be an issue with the internal lights, some are on, some are off, but the switch panel doesn't work at all.

It is a 2015 Ford hobby siesta and has a light switch panel with an on/off button and also individual light switch buttons. None of these work.
I have checked all the fuses and all test OK but the light switch panel does nothing.
I took the switch panel off and there is no obvious issue.
I have tried long presses of switches, double presses and disconnected the battery and 240v electrical hook up.

No idea what to try next and can't seem to find any electrical diagrams online
Any and all help appreciated.

 

[pappajohn]

Volt meter direct to battery terminals....should be 12.6v/12.7v when charged.....over 14.4v if being charged
It does sound like the battery is extremely flat.
Did you try hookup with battery connected

 

[Migrateur]

Sounds as if you're having a similar problem as I'm having, see my post of yesterday. Have you seen the article on MHF about keeping out mice and rats? Just a thought.