Huawei NetCol8000-A013 User Manual page 92

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (800 mm Width)
Alarm Alarm Name
ID
202 Comp
Discharge HP
Lock Alarm
203 Comp Suction
LP Alarm
204 Comp Suction
LP Lock
Alarm
205 Comp HP
Switch Alarm
Issue 05 (2019-12-20)
System Possible Causes
Action
faulty.
5. The liquid solenoid valve is
faulty.
6. The refrigerant is overfilled.
7. The outdoor unit is not
properly installed.
The The Comp Discharge HP Alarm
compressor is triggered multiple times
shuts down. within a specified period of
time.
(The alarm
needs to be
manually
cleared.)
1. The evaporator fins are dirty
The
or blocked.
compressor
shuts down. 2. The indoor air filter is dirty
or blocked.
3. The indoor fan drive or
indoor fan is faulty.
4. The low pressure sensor
cable is not properly
connected.
5. The low pressure sensor is
faulty.
6. The liquid solenoid valve is
faulty.
7. Refrigerant leaks.
8. The indoor unit is not
properly installed.
9. The stop valve is not fully
open.
10. The connecting pipe is bent.
11. The EEV is faulty.
The The Comp Suction LP Alarm is
compressor triggered multiple times within
a specified period of time.
shuts down.
(The alarm
needs to be
manually
cleared.)
1. The condenser fins are dirty
The
or blocked.
compressor
shuts down.
2. The outdoor fan or its drive
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5 System Operation and Maintenance
Solution
5. Maintain or replace the
solenoid valve coil or
solenoid valve.
6. Decrease certain amount of
refrigerant.
7. Reinstall the outdoor unit.
Refer to the solution to the
Comp Discharge HP Alarm.
1. Clean the evaporator fins.
2. Maintain or replace the
indoor air filter.
3. Maintain or replace the
indoor fan drive or indoor
fan.
4. Check the cable connections
to the low pressure sensor.
5. Maintain or replace the low
pressure sensor.
6. Maintain or replace the
solenoid valve coil or
solenoid valve.
7. Identify and repair the
leaking points, and refill
refrigerant after
maintenance.
8. Reinstall the indoor unit.
9. Check and fully open the
stop valve.
10. Check and replace the
connecting pipe.
11. Maintain or replace the EEV
coil or EEV.
Refer to the solution to the
Comp Suction LP Alarm.
1. Clean the condenser fins.
2. Maintain or replace the
outdoor fan drive or outdoor
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