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Error Code - 400 - System Fault - Alert Severity Major

Alarm ID
Alarm Name
Alarm Severity
Possible Cause
System Fault
Cause ID = 1/3/21/23/27
An unrecoverable fault occurs on a circuit inside the SUN2000.
Turn off the AC output switch and DC input switch. Then turn on the AC output switch and DC input switch after 5 minutes. If the fault persists, contact Huawei technical support.

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