Huawei NetCol8000-C070 User Manual page 162

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Alarm ID Alarm Name
A105-01 Indoor fan failure
alarm
A118-01 Backup power failure
alarm
Primary power failure
alarm
A120-01 Indoor fan 1
communication failed
Indoor fan 2
communication failed
Indoor fan 3
communication failed
A130-01 Humid water inlet
solenoid valve fault
Issue 07 (2021-12-30)
Alarm
Severity
Critical
Major
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The accumulated
runtime of the fan
exceeds the alarm
threshold.
● The cable to the
fan is not
connected properly.
● The power supply
to the fan is
abnormal.
The power supply is
faulty.
● The
communications
cable to the fan is
not connected
properly.
● The fan drive is
faulty.
● The cables to the
water inlet solenoid
valve are loose or
damaged.
● The water inlet
solenoid valve is
faulty.
6 Maintenance
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.
Check the power
supply.
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 the cables to
the water inlet
solenoid valve.
2. Replace the water
inlet solenoid valve.
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