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How to fix the unused matrix over current (0034, XX53 ) on a GT100

Issue:
Inverter faulted on 0034, xx53 unused matrix over current

Product Line:
GT100

Environment:

Cause:
Calculation of current was not right in the CCU board

Resolution:
Note: The work instruction provided is meant for those who are qualified to work on the inverter. This means that they should know how to properly Lock out and Tag Out (LOTO) the inverter...,etc.

If you see an error on the display for unused matrix over current, 0034 or xx53, the CCU board has an issue. There is only one matrix on the GT100 unlike the GT250. Therefore, there is no matrix that is unused. You can try to power cycle the inverter by turning off the Enable\disable switch to disable or off. Turn off the AC disconnect. Wait for 30 seconds and turn the AC disconnect back on. Wait until the unit is fully re-initialized and check to see if the error has gone away. You can turn the disable\enable to enable or Run the inverter if the fault is no longer there. If the fault remains, call the 866-519-1470 (select option 3 & 3) and open a new case. This unit needs a new CCU board.
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