I’m having a strange issue with my EG4-6000XP.
During the day, when a cloud passes, both PV input drop to almost 0–100 W and stay stuck like that, even if the sun comes back. They only recover to ~4kw or ~5kw if I turn PV OFF/ON and it is not cloudy.
I also discovered that PV1 shows a “ghost” voltage (13–30 V) at night, from the logs this started on October 31st. I did measure the inverter PV terminals and both reads ~0.5V so whatever it is, it seems to be internal to the inverter.
I dis some testing today:
- If I disconnect PV1 completely, the issue still happens with PV2 alone (Power stuck at ~100w).
- If I move the PV2 array to MPPT1, I get some power again, but MPPT2 starts showing ghost voltage in the inverter, not in the terminals (around 17 V).
- Probably worth mentioning that I received the error E017: Internal communication fault 2 a couple of times before this started, but as the manual says I just rebooted the inverter and the error went away.
I am on ccaa-190D0E firmware and see there is a new one, not sure if upgrading it would make any difference though.
Is this a known software issue or can you help me trouble shoot this problem?
