I’m stumped, and hope someone can offer a suggestion. I’ve had a smart shunt 500 in our camper for just over two years, and it’s always performed great. This week for unknown reasons it is no longer showing a correct voltage. In the attached screen shot you can see what I mean. The solar charge controller shows 13.3 volts for our BattleBorne battery, as does a builtin meter in the camper. Ditto when I checked the battery with a volt meter. Shunt reads 10.9v.
I’ve replaced the inline fuse just for kicks, didn’t make any difference.
Any ideas about what’s happening here?