Alar
m ID
Alarm
Name
Alarm
Severi
ty
Possible Cause
Solution
A273
Teamwork
function
abnormal
alarm
WARNI
NG
1. All sensors for
controlling the
indoor fan are
disabled.
2. All cables to the
sensors for
controlling the
indoor fan are loose
or damaged.
3. All sensors for
controlling the
indoor fan are
faulty.
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.
A278
Chilled
water valve
fault
MAJO
R
1. The cables to the
chilled water valve
are loose or
damaged.
2. The chilled water
valve is faulty.
1. Check the control
cable connection to the
chilled water valve.
2. Maintain or replace
the chilled water valve.
A27C
Cold aisle 1
temp/humid
sensor fault
MAJO
R
1. The cables to the
temperature and
humidity sensor are
loose or damaged.
2. The temperature
and humidity sensor
is faulty.
1. Check the cables to
the temperature and
humidity sensor.
2. Maintain or replace
the temperature and
humidity sensor.
Cold aisle 2
temp/humid
sensor fault
Cold aisle 3
temp/humid
sensor fault
Cold aisle 4
temp/humid
sensor fault
Cold aisle 5
temp/humid
sensor fault
Hot aisle 1
temp/humid
sensor fault
Hot aisle 2
temp/humid
sensor fault
NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual (2019)
6 System Operation and Maintenance
Issue 03 (2020-08-30)
Copyright © Huawei Technologies Co., Ltd.
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