Had same problem my system 3 years old had to buy a new one 220 as well think there’s an issue with these. ive heard of others having same problem. I’ve been told to take the battery out when van is not being used.
Hi...someone has flagged this add up to me as they know I made a base plate up for a snipe some time ago..
If you can source a piece of alloy plate around 6mm thick from memory..you can cut that to shape and use the body of the snipe as a template to mark out the bolt hole locations.. from memory I used riv nuts to form the threaded holes..
Plate was mastic to the roof and the body bolted down on to the plate..
It's an option anyway if you are stuck..
Our first van was an E630, & I have never seen another one before this! We full timed for 3 years in ours, & it was the perfect layout for us! Only sold as we bought a bungalow & the drive was a bit too short! Lovely van! Hope you have luck with your sale!