Alarm ID Alarm
Name
Alarm
Severity
Possible Causes Troubleshooting
2064 Device
Fault
Major A major fault has occurred
on the internal circuit of
the device.
Cause ID = 1–12
● 1: The Boost input is
short-circuited.
● 2: The Boost input
experiences overcurrent.
● 3: The control circuit is
faulty.
● 4: The inverter circuit is
abnormal.
● 5: The residual current
sensor is faulty.
● 6: The temperature
detection fails.
● 7: EEPROM read/write
fails.
● 8: The auxiliary power
supply is abnormal.
● 9: The grid-tied relay is
abnormal.
● 10: The DC bus
experiences overvoltage.
● 11: The DC bus
experiences
undervoltage.
● 12: The DC bus
experiences voltage
imbalance.
Turn
o the AC output switch
and DC input switch, and then
turn them on after 5 minutes. If
the fault persists, contact your
dealer or technical support.
SUN2000-(8K, 10K)-LC0 Series
User Manual 8 System Maintenance
Issue 01 (2023-09-15) Copyright © Huawei Digital Power Technologies Co., Ltd. 98
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