Goodwe ET Series User Manual page 52

09 Maintenance
No. Fault
Utility grid
exception. The
actual grid
Grid
lower than the
local grid standard.
Utility grid
exception. The
actual grid
8
Instability rate does not meet
of the local grid
standard.
The utility grid
is disconnected.
The utility grid
is disconnected
9 according to the
safety regulations,
is maintained due
to the loads.
Cause
1. If the problem occurs occasionally, the
utility grid may be abnormal temporarily.
detecting that the utility grid is normal.
2.
permissible range.
• Contact the local power company if the
range.
•
protection function after obtaining the
consent of the local power company
1. If the problem occurs occasionally, the
utility grid may be abnormal temporarily.
detecting that the utility grid is normal.
2.
permissible range.
• Contact the local power company if the
range.
• Contact the dealer or the after-sales
permissible range.
1. Check whether the utility grid is
disconnected.
2. Contact the dealer or the after-sales
48
User Manual V1.0-2022-08-30
Solutions