Installed BMV-712 last night and all was working, first step in the app was a firmware update which seemed to work fine. I then set the 712 up via the app and watched everything for a while then off to bed, went to work, came home and wanted to see state of batteries and the 712 is now unresponsive from the unit (screen is blank) or via the app.
I disconnected the control cable (I think it’s rj11?) at the shunt and get no response. I disconnected the red power cable at the shunt and re-seated it no response. I checked the fuse on the red cable that connects to the shunt and the fuse is good, reconnect the fuse no response.
What else can I check? Could the unit go defective overnight? My RV has full power for all devices
Any help you can offer is greatly appreciated