agdevil

I've got the 7.2kw king. Was painting and wife swithed lights on causing a trip. When I switched power back on, noticed no change. That evening started hearing battery low beeps. When batter ran flat, total darkness. Inverter switched itself off and wouldn't come back on. Next day checked grid power ay connection - was fine. Switched to inverter power as sun was shining. When I switched the battery on inverter powered up. Now running fine, but display is not showing the grid input dignal, which means it is only running off solar and battery and will die again at night. Is there something simple that could be preventing it from converting the ESKOM power? Oh yes, when going into settings, it kicks out an error U01 for three seconds and then goes back to standard display.