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