Huawei NetCol5000-A-035 - Page 168

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
6 System Operation and Maintenance
Issue 13 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
159
Alar
m
ID
Alarm
Alarm
Severit
y
Default
Value
Impact
Possible Cause
Solution
a008
Comp
HP
Major
4.25
MPa
The alarm
is
generated
, and the
compress
or shuts
down
forcibly.
1. The power supply to the
outdoor unit is lost, or a
phase is open or error.
2. The on/off signal cables
of the outdoor unit are
disconnected.
3. The condenser fins are
blocked.
4. The outdoor fan or fan
driver is damaged.
5. The cables to the high
pressure switch are
loose or damaged.
6. The high pressure
switch is faulty.
7. The solenoid valve is
faulty.
8. The refrigerant is
overfilled.
1. Check the power
supply of the outdoor
unit.
2. Check the on/off
signal cables of the
outdoor unit.
3. Clean the condenser
fins.
4. Maintain or replace the
outdoor unit or unit
driver.
5. Check the cables to the
high pressure switch.
6. Maintain or replace the
high pressure switch.
7. Maintain or replace the
solenoid coil or the
solenoid valve.
8. Decrease certain
amount of refrigerant.
a009
Comp
HP lock
Critical
4.25
MPa
The alarm
is
generated
, and the
compress
or is
locked
and not
allowed
to be
started.
The a008 comp HP alarm
is generated frequently.
Reference to the solutions
for the a008 comp HP
alarm.