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NetCol8000-C(070-260) In-room Chilled Water Smart
Cooling Product
User Manual
Alarm ID
Alarm Name
detection board
comm. fail
Backup SPD &
voltage
detection board
comm failed
A174-01
SPD function
failure
Backup SPD
function failed
A179-01
Humidifier
pump fault
Issue 06 (2020-01-13)
Alarm
Impact
Severity
Major
N/A
Major
N/A
Major
N/A
Major
An alarm is
triggered, and
the humidifier is
shut down.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible
Solution
Cause
communicati
communicati
ons cable is
ons cable.
not
2. Replace the
connected
SPD and
properly.
voltage
2. The SPD
detection
and voltage
board.
detection
3. Maintain or
board is
replace the
faulty.
main control
3. The
board.
communicati
ons port of
the main
control
board is
faulty.
1. The
1. Check the
communicati
communicati
ons cable is
ons cable.
not
2. Replace the
connected
SPD and
properly.
voltage
2. The SPD
detection
and voltage
board.
detection
3. Maintain or
board is
replace the
faulty.
main control
3. The
board.
communicati
ons port of
the main
control
board is
faulty.
The SPD and
Replace the
voltage
SPD and
detection board
voltage
is faulty.
detection board.
The SPD and
The SPD and
voltage
voltage
detection board
detection board
is faulty.
is faulty.
1. The water
1. Clear the
pump inlet is
blockage
blocked.
from the
water pump
2. The cables
inlet.
to the water
pump are
2. Verify that
215
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