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Need help. Installed 2 x Growatt 5000es in parallel with 2 x Greensun Powerwall 10kWh. Now getting Fault 04 and 20 meaning that the BMS of the batteries not communicating with the inverters. Can anyone help with Communication Protocol to use and what could be causing the faults?

Hi. I have 2 x Growatt SPF 5000 ES connected in parallel. I have today managed to change the 'Battery to grid operational point' on the Master Inverter. But this is not reflected on the Slave Inverter. If I make the change physically on the Master Inverter, it is reflected on the Slave...

Hi All, I notice that SOC reported by Growatt Shine App on 07 Dec 2023 suddenly dropped to 0% at night for a period of 6 hours. However, during this period, there were no issues with loads despite power not coming from the grid nor the solar panels. I suspect data issue with Growatt. Did...

I have an installation comprising 16 x 550W Greensun Panels, 2 x Growatt SPF 5000 ES Inverters and 2 x 10kWH LiFePO4 batteries. The batteries are connected using BMS by setting Program 05 to 'L1' and 36 to 'L01'. I have some issues with the system and trying to investigate the causes. First...