Huawei NetCol5000-A021 User Manual page 174

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
failure
a108 Cold-aisle 1/2/3
temp invalid
a109 Cold-aisle 1/2/3
humid invalid
a110 Cold-aisle 1/2/3
T/H brd comm
failed
a111 Hot-aisle 1/2/3
temp invalid
a112 Hot-aisle 1/2/3
humid invalid
Issue 03 (2020-01-10)
Alarm Impact
Severity
generated, and
the compressor
is shut down.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
is faulty.
2. The cables to 2. Check the cables to the
the indoor fan
are loose or
NOTE
damaged.
1. Dirt or water 1. Remove dirt or water from
exists around
the T/H sensor,
2. Maintain or replace the
which leads to a
detection fault.
2. The T/H sensor
is faulty.
1. Dirt or water 1. Remove dirt or water from
exists around
the T/H sensor,
2. Maintain or replace the
which leads to a
detection fault.
2. The T/H sensor
is faulty.
1. The cables to 1. Check the cables to the
the T/H sensor
are loose or
2. Set the DIP switch of the
damaged.
2. The DIP switch
3. Maintain or replace the
of the T/H
sensor is set
4. Maintain or replace the
incorrectly.
3. The T/H sensor
is faulty.
4. The
communication
port of the
control board is
faulty.
1. Dirt or water 1. Remove dirt or water from
exists around
the T/H sensor,
2. Maintain or replace the
which leads to a
detection fault.
2. The T/H sensor
is faulty.
1. Dirt or water 1. Remove dirt or water from
exists around
the T/H sensor,
2. Maintain or replace the
which leads to a
detection fault.
indoor fan.
indoor fan.
After the alarm is rectified, enter
the diagnostic mode, and
manually start the indoor fan to
clear the alarm.
the T/H sensor.
T/H sensor.
the T/H sensor.
T/H sensor.
T/H sensor.
T/H sensor correctly.
T/H sensor.
control board.
the T/H sensor.
T/H sensor.
the T/H sensor.
T/H sensor.
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