Huawei NetCol8000-E220 User Manual page 170

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A105
-01
A105
-01
A118
-01
A118
-01
A118
-02
A120
-01
A120
-01
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
CRITICA Indoor fan
L failure alarm
CRITICA Exhaust fan
L function
failure alarm
MAJOR Backup power
failure alarm
MAJOR Primary
power failure
alarm
MAJOR Primary
power failure
alarm
MAJOR Indoor fan 1
communicatio
n failed
MAJOR Indoor fan 2
communicatio
n failed
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The accumulated
runtime of the fan
exceeds the alarm
threshold.
2. The cable to the
fan is not connected
properly.
3. The power supply
to the fan is
abnormal.
1. The fan is faulty.
2. The cable to the
fan is not connected
properly.
3. The power supply
to the fan is
abnormal.
The power supply is
faulty.
The power supply is
faulty.
The power supply is
faulty.
1. The
communications
cable to the fan is
not connected
properly.
2. The fan is faulty.
1. The
communications
cable to the fan is
not connected
properly.
2. The fan is faulty.
Solution
1. Maintain or replace
the fan, and clear the
accumulated runtime.
2. Check the cable
connection to the fan.
3. Check the power
supply to the fan.
1. Maintain or replace
the fan.
2. Check the cable
connection to the fan.
3. Check the power
supply to the fan.
1. Check the power
supply.
1. Check the power
supply.
1. Check the power
supply.
1. Check the
communications cable
connection to the fan.
2. Maintain or replace
the fan.
1. Check the
communications cable
connection to the fan.
2. Maintain or replace
the fan.
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