For the past week, every morning at 2:35 am. I get an error! Once, the power actually dropped on the Essential side, all the other times, just an error logged.
It looks like a fridge or something is shorting, the IAC drops to zero, but the V and Frequency are still normal so the inverter does not go into “Utility Failure Mode” but just tries to draw the power from the batteries which are already at the minimum for on grid DoD.
Unfortunately I do not have an error number!
The Goodwe is not too good on error handling in that it does not alert one that there has been an error/Alarm.