Few days ago I have successfully installed an ESS system based on MultiPlus II 48/5000/70, CCGX and BYD B-Box Pro 7.5. It worked fine until yesterday. The batterie went off and cannot be turned on again. The error message when trying to turn it on is: "yellow error LED plus 4x buzzer" indicating a safety mode. The last information in the logger stored before the outage is showing the battery at 100% and 65,18V which is way too high. It should be below 58V.....
I already contacted the BYD support, but wanted to know whether anybody out there has experienced such an issue or has an idea what the root cause is?
(all parameters has been set according to this side: https://www.victronenergy.com/live/battery_compatibility:byd_b-box)