Huawei NetCol5000-C030 User Manual page 157

NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual
Alarm ID Alarm Name
A273-01 Teamwork function
abnormal alarm
A278-04 Chilled water valve
fault
A278-08 Chilled water valve
fault
Issue 04 (2021-03-15)
Alarm
Severity
Major
Major
Warning
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
● All sensors for
controlling the
indoor fan are
disabled.
● All cables to the
sensors for
controlling the
indoor fan are
loose or damaged.
● All sensors for
controlling the
indoor fan are
faulty.
● The cables to the
chilled water valve
are loose or
damaged.
● The chilled water
valve is faulty.
● The cables to the
chilled water valve
are loose or
damaged.
● The chilled water
valve is faulty.
Solution
1. Enable the sensors
for controlling the
indoor fan.
2. Check the cable
connections to the
sensors for
controlling the
indoor fan.
3. Maintain or replace
the sensors for
controlling the
indoor fan.
1. Check the control
cable connection to
the chilled water
valve.
2. Maintain or replace
the chilled water
valve.
1. Check the control
cable connection to
the chilled water
valve.
2. Maintain or replace
the chilled water
valve.
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