Hi, my system consists of the above Kodak inverter and 2 X Pylontech US2000 batteries. It is several years old and has run without any issues for a long time (except that now and then the inverter seems to lose its settings). We have just had a power failure, however, and I encountered an F03 problem. I have tried resetting everything several times by turning off the batteries, but to no avail. As the municipal power supply is down, after a few restarts, it has reached the stage where the inverter stays on for a minute or so and then powers off on its own. The batteries are both measuring 50.2 V on their output terminals. The Kodak inverter manual says "Return to repair centre" for this error code. Any ideas???

I do not know who to even contact for technical assistance anymore. Segen Solar do not deal with the public, and a very helpful installer who assisted me previously when I had some problems around 2020 or 2021 apparently passed away. I cannot remember his name.

Can you use the up or down buttons on the front panel to get to a data page showing battery voltage? F03 means battery voltage too high.