Huawei FusionCol8000-E240 User Manual page 167

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A077-02 Indoor fan 1 fault
A077-10 Indoor fan 2 fault
Indoor fan 3 fault
Indoor fan 4 fault
Indoor fan 5 fault
Exhaust fan 1 fault
Exhaust fan 2 fault
Exhaust fan 3 fault
Exhaust fan 4 fault
A077-04 Indoor fan 1 fault
A077-08 Indoor fan 2 fault
Indoor fan 3 fault
Indoor fan 4 fault
Indoor fan 5 fault
Exhaust fan 1 fault
Exhaust fan 2 fault
Exhaust fan 3 fault
Exhaust fan 4 fault
A077-20 Indoor fan 1 fault
Indoor fan 2 fault
Indoor fan 3 fault
Indoor fan 4 fault
Indoor fan 5 fault
Exhaust fan 1 fault
Exhaust fan 2 fault
Exhaust fan 3 fault
Exhaust fan 4 fault
A089-01 Compressor 1 drive
speed limit alarm
Compressor 2 drive
speed limit alarm
Compressor 3 drive
speed limit alarm
Issue 02 (2021-04-15)
Alarm
Severity
Major
Major
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
The fan is faulty.
The fan drive is faulty.
● The ground cable
to the fan is not
connected properly.
● The fan is faulty.
● The compressor
lacks oil.
● The refrigerant
leaks.
8 System Maintenance
Solution
Maintain or replace
the fan.
If the drive is
integrated into the
fan, replace the fan.
If the drive is separate
from the fan, replace
the drive.
1. Check the ground
cable connection to
the fan.
2. Maintain or replace
the fan.
1. Fill oil to the
compressor.
2. Identify and repair
the leaking point,
and refill
refrigerant after
maintenance.
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