Huawei NetCol5000-A021 User Manual page 172

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a079 Drain abnormal
a089 Comp speed
limit
a090 Cond pump 1
exceed runtime
Issue 03 (2020-01-10)
Alarm Impact
Severity
Major The humidifier
is shut down.
Major The alarm is
generated.
Warning The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
internal
drainpipe is
blocked or
frozen.
1. Cables to the 1. Check cables to the liquid
liquid level
detector are not
2. Maintain or replace the
properly
connected.
3. Maintain or replace the
2. The liquid level
detector is
4. Clear the obstacles in the
faulty.
3. If a condensate
5. Clear foreign matters at the
pump is
configured, the
pump may be
6. Exhaust air in the water
faulty or its
draining
NOTE
capacity
decreases.
4. If condensate
pump is
configured, its
drainpipe may
be blocked.
5. If no
condensate
pump is
configured,
maybe the auto
drain port is
blocked or the
internal
drainpipe is
blocked or
frozen.
6. If a condensate
pump is
configured,
there maybe has
air in drainpipe.
1. The comp is in 1. Fill oil to the comp.
lack of oil.
2. Check for any leakages.
2. The refrigerant
leaks.
The accumulated Maintain or replace the cond
runtime of the cond pump and clear the
pump exceeds the accumulated runtime.
alarm threshold.
level detector.
liquid level detector.
condensate pump.
condensate pump.
automatic drainage port or
in the internal drainpipe.
pump pipe.
After the alarm is rectified, click
Manual clear on the alarm page.
Fill refrigerant after
maintenance or
replacement.
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