Huawei FusionCol8000-E240 User Manual page 171

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A120-01 Indoor fan 1
communication failed
Indoor fan 2
communication failed
Indoor fan 3
communication failed
Indoor fan 4
communication failed
Indoor fan 5
communication failed
Exhaust fan 1
communication failure
Exhaust fan 2
communication failure
Exhaust fan 3
communication failure
Exhaust fan 4
communication failure
A134-01 Compressor 1 suction
temperature sensor
fault
Compressor 2 suction
temperature sensor
fault
Compressor 3 suction
temperature sensor
fault
Paral comp sys suction
temp sensor fault
A172-01 SPD and voltage
detection board comm
failed
Backup SPD and volt
detection board comm
failed
Auxiliary cooling SPD
and voltage detection
board comm failed
Issue 02 (2021-04-15)
Alarm
Severity
Major
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The
communications
cable to the fan is
not connected
properly.
● The fan drive is
faulty.
● The cables to the
suction
temperature sensor
are loose or
damaged.
● The suction
temperature sensor
is faulty.
● The
communications
cable is not
connected properly.
● The SPD and
voltage detection
board is faulty.
● The
communications
port of the main
control board is
faulty.
8 System Maintenance
Solution
1. Check the
communications
cable connection to
the fan.
2. If the drive is
integrated into the
fan, replace the
fan.
If the drive is
separate from the
fan, replace the
drive.
1. Check cables to the
suction
temperature sensor.
2. Maintain or replace
the suction
temperature sensor.
1. Check the
communications
cable.
2. Replace the SPD
and voltage
detection board.
3. Maintain or replace
the main control
board.
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