May 2, 20233 yr Can any one assist .. i have never had this error before.BMS is communicating correctly. I have tried to get hold of supplier and support .. no responce . Thank You J.
September 6, 20232 yr Hi tokolosh, I have the same setup and the same issue. It seems in my case to be related to my pv input voltage tho it's only 120volts. So the inverter should be able to handle it. But the moment the load drops and pv input is good the pv voltage goes above the 115 mmpt operating window and the bus voltage goes above 400 vdc... I'm going to re config my solar input to get the volts down and the amps higher.. Hopefully this solves the issue.
September 11, 20232 yr Fault code 03 is battery voltage too high, so I don't see how it's related to PV configuration, especially with a 145 V max PV model. bus voltage goes above 400 vdc... That's not a problem, unless it goes over 500 V.
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