System: Off-grid Easysolar II GX (3000, early 2020 model) with 2x Pylontech US3000 batteries and a Honda EU22i generator for charging in the winter. The system has been more or less stable during the past couple of years.
The issues started when I plugged in the generator for the first time this autumn. The generator was visible as AC in 240V 50Hz but the input power stayed at 0W and charging didn’t start. I checked with a different charging cable and tried the generator with other devices (seemed to work ok). No help from that.
I also contacted the dealer that sold me the batteries and solar panels. He tried to remotely upload new settings (as far as I know, there were no changes since the settings hadn’t been changed from the previous season when everything worked fine). After a restart of the system, the inverter refused to power on. Leaving the Easysolar off and the batteries on overnight seemed to help and the inverter turned on in the morning.
So the current situation is that there’s about 20% of charge in the batteries, the inverter works, the solar charger works (albeit at minimal power this time of the year), the Multiplus charger does not work.
Changes from the last time it worked are that I have updated the solar charger firmware through bluetooth and the GX firmware through VRM. As far as I know, the Multiplus firmware is unchanged (v. 473).
Any ideas on what to check or how to proceed with this? The installation is in a remote location so it might not be feasible to get a technician to the site.
