Huawei NetCol5000-C030 User Manual page 149

NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual
Alarm ID Alarm Name
A054-01 PSU 1 communication
failed
PSU 2 communication
failed
A077-01 Indoor fan 1 fault
Indoor fan 2 fault
Indoor fan 3 fault
Indoor fan 4 fault
Indoor fan 5 fault
Indoor fan 6 fault
Indoor fan 7 fault
Indoor fan 8 fault
Indoor fan 9 fault
Indoor fan 10 fault
A077-40 Indoor fan 1 fault
Indoor fan 2 fault
Indoor fan 3 fault
Indoor fan 4 fault
Indoor fan 5 fault
Indoor fan 6 fault
Indoor fan 7 fault
Indoor fan 8 fault
Indoor fan 9 fault
Indoor fan 10 fault
Issue 04 (2021-03-15)
Alarm
Severity
Major
Major
Major
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
● The
communications
cables of the PSU
are loose or
damaged.
● The PSU is faulty.
● The
communications
port of the main
control board is
faulty.
● The power supply
to the fan is
abnormal.
● The cable to the
fan is not
connected properly.
● The fan is faulty.
● The cable to the
fan is not
connected properly.
● The fan is faulty.
Solution
1. Check the
communications
cables of the PSU.
2. Maintain or replace
the PSU.
3. Maintain or replace
the main control
board.
1. Check the power
supply to the fan.
2. Check the cable
connection to the
fan.
3. Maintain or replace
the fan.
1. Check the cable
connection to the
fan.
2. Maintain or replace
the fan.
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