Huawei SUN2000-4.95KTL-JPL1 - Page 89

Alarm
ID
Alarm Name Alarm
Severity
Possible Causes Troubleshooting
2064 Device Fault Major An unrecoverable fault has
occurred on a circuit inside
the SUN2000.
Cause ID = 1–12
● Cause ID 1: The Boost
input is short-circuited.
● Cause ID 2: The Boost
input experiences
overcurrent.
● Cause ID 3: The control
circuit is faulty.
● Cause ID 4: The
SUN2000 circuit is
abnormal.
● Cause ID 5: The residual
current sensor is faulty.
● Cause ID 6: The
temperature detection
fails.
● Cause ID 7: EEPROM
read/write fails.
● Cause ID 8: The auxiliary
power supply is
abnormal.
● Cause ID 9: The grid-tied
relay is abnormal.
● Cause ID 10: The DC bus
experiences overvoltage.
● Cause ID 11: The DC bus
experiences
undervoltage.
● Cause ID 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
alarm persists, contact your
dealer or Huawei technical
support.
SUN2000-4.95KTL-JPL1
User Manual 8 Maintenance
Issue 05 (2023-02-17) Copyright © Huawei Technologies Co., Ltd. 83