So you need a bit of spare space in your boot tunnel if you plan on taking it travelling.
I had kept the battery out of the van during the winter and charged it up every cople of weeks.
They are now telling me to do what I mentioned above even though they told me yesterday that pressing 2 buttons will trip the unit! I've had another response from Truma today which contradicts what they told me yesterday.
Huge thank you to Mark for all his hard work, expertise, professionalism and patience.
My box is in the nearside front locker and if I stand at the back it plays up.
So, if you can, beg, borrow, or buy another battery and check whether this is the problem or not.
No lights showing on the control box.