Thanks fellas, not done it since. But may give them a call anyway.
Not rung them yet, but, had 1st service today and they power washed it. Hey presto, warning came up again, popped across the road to RobMacs place (he who fitted it) and showed him.
Immediately he said that'll be water in the traffic sensor port which he had tucked away, but not sealed off.
Dried it and sealed it off and tied it out of harms way.
Seams to be okay now.
Seems like you guessed it straight off h0wz3r
Thank {the Deity of your choice} for the search function. Mine was doing this as well but only once each time I started up and only when wet (ie most of the time right now). I assumed water ingress but it's good to have a confo.
heatshrink city here I come
) when the van's engine is shut off. At that point I naturally get the "...do you want to continue on battery power?" message, to which I usually answer "Yes" to avoid going through the Zumo's startup sequence again.
