Huawei NetCol5000-C030 User Manual page 155

NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual
Alarm ID Alarm Name
A105-01 Indoor fan failure
alarm
A118-01 Primary power failure
alarm
A130-01 Humid water inlet
solenoid valve fault
A193-01 Air-side diff pressure
sensor fault
A220-01 Wizard startup is in
progress
A233-01 Air-side low pressure
difference alarm
Issue 04 (2021-03-15)
Alarm
Severity
Critical
Major
Major
Major
Warning
Warning
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
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 cables to the
water inlet solenoid
valve are loose or
damaged.
● The water inlet
solenoid valve is
faulty.
● The cable to the
differential pressure
sensor is loose or
damaged.
● The pressure tube
of the differential
pressure sensor is
reversely
connected.
● The differential
pressure sensor is
faulty.
Wizard startup is in
progress.
● Contained aisles
are poorly-sealed.
● The differential
pressure sensor 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.
Check the power
supply.
1. Check the cables to
the water inlet
solenoid valve.
2. Replace the water
inlet solenoid valve.
1. Check the cable
connection to the
differential pressure
sensor.
2. Check the tube
connection to the
differential pressure
sensor.
3. Maintain or replace
the differential
pressure sensor.
Wait until wizard
startup is complete or
clear the alarm
manually to exit
wizard startup.
1. Check that the cold
and hot aisles are
well-sealed.
2. Maintain or replace
the differential
pressure sensor.
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