Tech Hub

I recently went to troubleshoot some inverters after they rebuilt an engine on it. They had swapped logic boards, distribution boards, lvrt boards gate drive boards, I checked their settings adjusted the aux power supply tested voltages incoming and out going and it cycles till 9am then it will run all day no issue and this is 2 inverters doing this and and starting at the same time so im lost what would cause this im thinking maybe a ct but then the 9am thing still doesnt make sense.

Faults the come up in log file are

Aux power supply, phase b,c low phase a high

Checked all the idc connectors put new ones on pins that are associated with power to dist board and current sense. Has any one experienced this. I dont believe this is a factory ae/bold engine rebuild kit its another companies