Huawei NetCol5000-A User Manual page 169

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Alar Alarm
Alarm
m Severit
ID y
a010 Comp MAJOR -
LP
a011 Comp CRITIC
LP lock AL
a012 Comp Major
dischar
ge HT
Issue 13 (2019-01-15)
Default
Impact
Value
The alarm
is
generated
, and the
compress
or shuts
down
forcibly.
- The alarm
is
generated
, and the
compress
or shuts
down
forcibly.
125° C The alarm
is
generated
, and the
compress
or shuts
down
forcibly.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
1. The refrigerant leaks.
2. The solenoid valve is
faulty.
3. The cables to the low
press switch are loose
or damaged.
4. The low press switch is
faulty.The dryer filter is
blocked.
5. The expansion valve is
blocked.
6. The indoor fans are
faulty.
The a010 comp LP alarm is
generated frequently.
1. The refrigerant leaks.
2. The condenser fins are
blocked.
3. The ambient temp is
high.
4. The temp displayed is
different from the
actual temp.
5. The discharge temp
sensor is faulty.
6. Outdoor fans are faulty.
Solution
1. Check for any
leakages. Fill
refrigerant after
maintenance or
replacement.
2. Maintain or replace the
solenoid coil or the
solenoid valve.
3. Check the cables to the
low press switch.
4. Maintain or replace the
low press switch.
5. Maintain or replace the
dryer filter.
6. Maintain or replace the
expansion valve.
7. Maintain or replace the
indoor fans.
Reference to the solutions
for the a010 comp LP
alarm.
1. Check for any
leakages. Fill
refrigerant after
maintenance or
replacement.
2. Clean the condenser
fins.
3. Check the ambient
temp.
4. Calibrate or replace
the temp sensor.
5. Maintain or replace the
temp sensor.
6. Maintain or replace the
outdoor fans.
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