Control Panel Instructions
The main control panel is quite complex. You do get it explained when you collect the van but I found a version on-line which you can get access to.
It has instructions plus a list of error codes and troubleshooting which you might need.
The most important one being that if you get a 'flashing fault code' then you cannot reset for 15 minutes. See page 16.
You can view/download a copy of the full Control Panel Instructions (3MB) via this link. Link to Instructions.