Huawei FusionCol8000-E240 User Manual page 174

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A233-01 Air-side low pressure
difference alarm
A242-01 Manual shutdown
alarm
A26B-01 Indoor fan 1 power
supply abnormal
A26B-04
Indoor fan 2 power
supply abnormal
Indoor fan 3 power
supply abnormal
Indoor fan 4 power
supply abnormal
Indoor fan 5 power
supply abnormal
Exhaust fan 1 power
supply abnormal
Exhaust fan 2 power
supply abnormal
Exhaust fan 3 power
supply abnormal
Exhaust fan 4 power
supply abnormal
Issue 02 (2021-04-15)
Alarm
Severity
Warning
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● Contained aisles
are poorly-sealed.
● The differential
pressure sensor is
faulty.
The air conditioner is
shut down via the LCD
or NetEco.
● The cable to the
fan is not
connected properly.
● The fan drive is
faulty.
8 System Maintenance
Solution
1. Check that the cold
and hot aisles are
well-sealed.
2. Maintain or replace
the differential
pressure sensor.
Restart the air
conditioner via the
LCD or NetEco.
1. Check the 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.
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