otrfun wrote:
It's possible you may have a new version of PI EMS with an EPROM memory capability.
Sounds like a reasonable explanation since I just bought this EMS recently but clarification from Progressive would be helpful. I do know for a fact that in this particular incident power was completely disrupted because when I first noticed the EMS remote panel wasn't displaying anything I checked the power post itself with a DVM and had no voltage reading at all. In the course of doing so I also disconnected the trailer's main service cable entirely from the campsite post supply and in fact left it disconnected until a few hours later when park staff swung by to tell us the problem had been resolved and power was back on. We were also camping with friends who were on the site next to us and they too lost power completely for several hours. Once we were told power had been restored I then plugged back in, saw the usual E0, but noted that the normally blank display following E0 showed PE2, meaning a previous error - open ground. That's when I took those pics, also a short video of the display, so it would seem that error code had to be held in some sort of memory. Interestingly, I too have an EU2000i so I could replicate your test except the trailer is now in winter storage and although I have the EMS in my workshop I left the remote display mounted in the trailer so I guess I'd have to wait 'til spring to do this test.
