The inverter has detected that the grid is not stable.

Possible causes are;

• Multiple inverters installed in line and the grid voltage wave is non-ideal.
• Grid filters need to be set.
• Downstream equipment needs to be changed or repaired.
• The inverter power board is faulty.

1. Measure all the grid inputs to confirm they are within expected range.
2. Verify that there are no other non-standard loads or equipment that are attached to the AC distribution panel.
3. In some cases, the issue indicates a failure with the power board. Please raise a case.

This is an inverter driven issue.

Issue Creation

If the inverter sends a single message with this type of alarm in a 24hr period an issue will be created.

Resolution:

If a 24hr period passes with good production, and not futher alarms, the issue will be automatically resolved.