I use 3 Quattro 48/15000/200-2x100 in parallel for a 3 phase system
The problem first started with only "ESS wizard not found". Before this the system worked for years, nothing was changed in the settings or setup. It was fixed with a restart. A few weeks later it came back and a restart did not help. A firmware update of the cerbo GX fixed it.
Later it came back again and a restart fixed it.
Now it is back again, 2 weeks later. Everything is updated to the latest. A restart does not work. I first noticed it because inverters were "off" in the vrm portal. After a while I lost the complete connection to the inverters. When going to the setup I noticed that no leds on the inverters were on. Like it was completely off, but the switch was on. There was power on the DC side and the AC in side.
I was able to restart them by disconnecting and reconnecting the AC and DC. I restarted the whole system. For a moment the ESS wizard was back again. The inverters starting inverting for a short moment, but it did not recognize the AC input. After a while they went off again and the ESS wizard was not available anymore.
I checked if the assistants were still there, they were. I loaded a fresh configuration with the same settings to be sure. Still nothing.
No PV system installed.
There are no error messages.
