How to fix a 0023 Bus voltage high error on a GT inverter?
Unit keeps faulting with a bus voltage high
GT Series: GT100, GT250 and GT500
Lightning strike near by, loose connection on the CCU board connector P3 & P1002 or CCU board issue.
Check for loose connections at the CCU board at P3 and P1002 connectors. Try to clear the fault by pressing F1. If it can not be cleared, then call 866-519-1470 and select option 3 and 3 to open a new case. It is possible that it could be a CCU board issue.
Note: Make sure you check the array first and confirm there are no issues there.