Grand California completely dead

[honzapav]

Hello, I've just found out our GC600 is completely dead – it can't be opened (possible only with keys), or the engine started – not even with a booster. Any ideas what could go wrong? Thank you all!

 

[GordonH]

Sounds like a flat battery. How long has it been left? Plug in the hookup, it also trickle charges leisure battery.

 

[honzapav]

Sounds like a flat battery. How long has it been left? Plug in the hookup, it also trickle charges leisure battery.

About two months – it seems like it is this, but everything was turned off...
Anyway, thank you.

 

[GordonH]

Even with everything turned off if you don’t have solar then the leisure battery will only last 3-4 weeks. It looks from your experience the starter battery may last a bit longer but not much.