Huawei NetCol5000-A021 User Manual page 160

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a009 Comp HP
switch locked
a012 Comp discharge
HT
a013 Comp discharge
Issue 03 (2020-01-10)
Alarm Impact
Severity
Critical The alarm is
generated. The
compressor is
locked and
cannot be
started.
Major The alarm is
generated, and
the compressor
is forcibly shut
down.
Critical The alarm is
generated, and
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
driver or fan is
faulty.
9. Reinstall the outdoor unit
5. Cables to the
high pressure
switch are not
properly
connected.
6. The high
pressure switch
is faulty.
7. The EEV is
faulty.
8. The refrigerant
is overfilled.
9. The outdoor
unit is installed
improperly.
The a008 comp HP Reference to the solutions for
alarm is generated the a008 comp HP alarm.
frequently.
NOTE
1. The refrigerant 1. Identify and repair the
leaks.
2. The condenser
fins are
blocked. 2. Clean the condenser fins.
3. The ambient 3. Check the ambient temp.
temperature is
4. Calibrate or replace the
higher than the
upper alarm
threshold.
5. Maintain or replace
4. The
temperature
6. Maintain or replace EEV.
displayed by
the discharge
temperature
sensor is
different from
the actual
value.
5. Outdoor fans
run abnormally.
6. The EEV is
faulty.
The a012 comp Reference to the solutions for
discharge HT the a012 comp discharge HT
refrigerant.
properly.
After the alarm is rectified, click
Manual clear on the alarm page.
leaking point, and refill
refrigerant after
maintenance.
discharge temperature
sensor.
outdoor fans.
152