Alarm ID
Alarm Name
Alarm
Severity
Possible Cause
Solution
A079-01
Drain abnormal alarm
Major
● The drainage filter
is blocked.
● The drainpipe is
blocked.
● The drain pump is
faulty.
● The low liquid level
sensor is faulty.
1. Clear the foreign
matter in the water
pan and filter.
Then, press and
hold down the low
float (if there is)
for 3s and release
it.
2. Check that the
drainpipe is not
blocked or bent.
Then, press and
hold down the low
float (if there is)
for 3s and release
it.
3. Check the cables to
the drain pump,
clear the foreign
matter in the
pump, or replace
the pump.
4. Check the cables to
the low liquid level
sensor, clear the
obstacles, or
replace the low
liquid level sensor.
A080-01
CW valve exceed
runtime alarm
Warning
The accumulated
runtime of the chilled
water valve exceeds
the alarm threshold.
Maintain or replace
the chilled water valve
and clear the
accumulated runtime.
A090-01
Drain pump 1 exceed
runtime alarm
Warning
The drain pump
runtime exceeds the
limit.
Maintain or replace
the drain pump, and
clear the total
runtime.
NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual
6 System Operation and Maintenance
Issue 04 (2021-03-15)
Copyright © Huawei Technologies Co., Ltd.
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