My installation:
AND multiplus II GX 5000
3 Dyness B3 batterijset s
ET112 netmet er
5000W solar panels connected to the fuse b ox.
I have installed a new and larger fuse box. The ET112 is next to the main switch as prescribed and the RS485 to USB goes to th e GX.
everything was the same connected in the old fus e box.
The problem now is that when the batteries start to discharge, they do so at full power. I have the impression that the excess power is sent to the grid. The batteries are therefore empty after 4 hours (20%). Even when they start charging, it is at full power and they take power from the grid instead of using the surplus from the solar panels.
How do I fix this?