Alarm References - Huawei NetCol5000-C Series User Manual

NetCol5000-C(065, 080) In-row Chilled Water Smart
Cooling Product
User Manual
No.
20
21

6.2 Alarm References

Table 6-2 Alarm list (V200R001 software version)
Alarm Alarm Name
ID
a001 Return air 1/2
temperature
invalid
Return air 2
temperature
invalid
a002 Return air high
temperature
alarm
Issue 07 (2020-03-16)
Operation
securely installed.
Check that pipes do not
leak.
Check that the smart
cooling product
drainpipe is free from
leaks and blockages.
Alarm Impact
Severity
Major Generates an
alarm
Major Generates an
alarm
Critical Generates an
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Troubleshooting
Close the water inlet
stop valve and repair
leaks.
If the drainpipe
leaks, repair the
leaks. If the
drainpipe is blocked,
clear the blockage
inside the pipe.
Possible Cause
1. The cables to the
temperature sensor are
loose or damaged.
2. The temperature
sensor 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 temperature
sensors or temperature
and humidity sensors
are located in
inappropriate positions.
2. The thermal load
power is high or the
cooling capacity is
insufficient.
3. The ambient
temperature exceeds
the upper threshold.
4. The high temperature
Period Result
□Failed
□Passed
Semi-annual
□Failed
□Passed
Semi-annual
□Failed
Solution
1. Check the cables to
the temperature
sensor.
2. Maintain or replace
the temperature
sensor.
1. Check the cables to
the temperature and
humidity sensor.
2. Maintain or replace
the temperature and
humidity sensor.
1. Adjust the positions
of the temperature
sensors or temperature
and humidity sensors.
2. Add smart cooling
products or contact
Huawei technical
support.
3. Measure the
ambient temperature.
Check whether other
causes exist if the
alarm persists in a
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