Huawei NetCol5000-A050 User Manual page 224

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Alarm
ID
A273-0
1
A278-0
8
A27C-0
1
A27C-0
2
Issue 08 (2021-09-17)
Alarm Name Alar
m
Seve
rity
Teamwork MAJ
function OR
abnormal
alarm
Water valve MAJ
fault OR
Return air 2 MAJ
temp/humid OR
sensor fault
Return air 2 MAJ
temp/humid OR
sensor fault
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
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. The cable to the
water valve is
loose or damaged.
2. The water valve
is faulty.
1. The cables to
the temperature
and humidity
sensor are loose or
damaged.
2. The
temperature and
humidity sensor is
faulty.
1. The cables to
the temperature
and humidity
sensor are loose or
damaged.
2. The
temperature and
humidity sensor is
faulty.
9 Alarm Reference
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 cable to
the water valve.
2. Maintain or replace
the water valve.
1. Check the cables to
the temperature and
humidity sensor.
2. Maintain or replace
the temperature and
humidity sensor.
1. Check the cables to
the temperature and
humidity sensor.
2. Maintain or replace
the temperature and
humidity sensor.
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