Huawei NetCol5000-C Series User Manual page 129

NetCol5000-C(065, 080) In-row Chilled Water Smart
Cooling Product
User Manual
Alarm Alarm Name
ID
a118 Main power
failure alarm
a130 Water inlet
solenoid valve
fault alarm
a179 Humidifier
pump
abnormal
alarm
a180 Humidifier wet
film
replacement
due-in alarm
a181 Humidifier
pump exceed
runtime alarm
a182 Water supply
abnormal
alarm
Issue 07 (2020-03-16)
Alarm Impact
Severity
Major Generates an
alarm
Major Generates an
alarm and shuts
down the
humidifier.
Major Generates an
alarm and shuts
down the
humidifier.
Warning Generates an
alarm
Warning Generates an
alarm
Major Generates an
alarm and shuts
down the
humidifier.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
3. A slave unit is
offline.
1. The primary power
supply is faulty.
2. The cables to the
primary power supply
are loose or damaged.
1. The cables to the
water inlet solenoid
valve are loose or
damaged.
2. The water inlet
solenoid valve is faulty.
1. The water pump inlet
is blocked.
2. The cables to the
water pump are loose
or damaged.
3. The water pump is
faulty.
4. The water pump
races due to a liquid
level detection fault.
5. The water pump is
blocked.
The accumulated
runtime of the wet film
of the humidifier
exceeds the alarm
threshold.
The accumulated
runtime of the water
pump exceeds the
alarm threshold.
1. The water supply is
insufficient.
2. The humidifier float
has dropped and is
jammed.
3. The humidifier float
Solution
unit to the actual
number of units.
3. Check the
teamwork cable
connection and
running status of the
slave units.
1. Check the primary
power supply.
2. Check the cables to
the primary power
supply.
1. Check the cables to
the water inlet
solenoid valve.
2. Replace the water
inlet solenoid valve.
1. Clear the blockage
from the water pump
inlet.
2. Verify that the
water pump cables are
properly connected.
3. Replace the water
pump.
4. Rectify the liquid
level detection fault.
5. Replace the water
pump.
Maintain or replace
the wet film of the
humidifier and clear
the accumulated
runtime.
Maintain or replace
the water pump and
clear the accumulated
runtime.
1. Verify that water
supply to the
humidifier is normal.
2. Verify that the
humidifier float can
float and drop
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