These error indicate that the PowerRouter has no connection with the Li-ion battery manger (BMM).
- To rule out any software errors, the PowerRouter needs the latest official firmware.
- Verify the data connection between PowerRouter and BMM.
- Restart the BMM, and then reset the PowerRouter.
If the problem remains:
Cold start the PowerRouter (disconnecting Solar, Grid, Batteries and wait 10min before reconnecting them and starting the PowerRouter).