It Seems like my MPPT100/20 has stopped charging my leisure battery in my campervan, so I am asking for some advice as what to do next.
The solar controller is new (installed early April 2019) and is running firmware version 1.39 (not updated since installation).
As you can see from the images below -- no charging of leisure battery for last 6 days, despite good output from the solar panels (two x 120 watts).
Battery only used very lightly (just for a 12v fridge) as I'm at home using the van as a daily driver --
On the controller itself there is a single blue flashing light (manuals states that this means 'not charging')
Any help most appreciated, thanks.