Huawei NetCol8000-A013 User Manual page 94

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (800 mm Width)
Alarm Alarm Name
ID
209 Comp
Discharge HT
Alarm
210 Comp
Discharge HT
Lock Alarm
211 InUnit Input
Overcur Alarm
212 Comp Drive
Overload
Alarm
Issue 05 (2019-12-20)
System Possible Causes
Action
manually
cleared.)
1. The condenser fins are dirty
The
or blocked.
compressor
shuts down. 2. The outdoor fan or its drive
is faulty.
3. The discharge sensor is
faulty.
4. The liquid solenoid valve is
faulty.
5. Refrigerant leaks.
6. The outdoor unit is not
properly installed.
7. The EEV is faulty.
8. The stop valve is not fully
open.
9. The dryer is dirty or
blocked.
10. The connecting pipe is bent.
The The Comp Discharge HT
compressor Alarm is triggered multiple
shuts down. times within a specified period
(The alarm of time.
needs to be
manually
cleared.)
1. The condenser fins are dirty
The
or blocked.
compressor
shuts down. 2. The outdoor unit is not
properly installed.
3. The outdoor temperature
sensor displays an incorrect
temperature or is faulty.
4. The input voltage of the unit
fluctuates.
1. The refrigerant is liquefied
The
or the compressor startup
compressor
resistance is high. As a
shuts down.
result, the compressor fails
to start.
2. At least two cables between
the compressor and the drive
board are not connected.
3. The output of the inverter
Copyright © Huawei Technologies Co., Ltd.
5 System Operation and Maintenance
Solution
1. Clean the condenser fins.
2. Maintain or replace the
outdoor fan drive or outdoor
fan.
3. Maintain or replace the
discharge sensor.
4. Maintain or replace the
solenoid valve coil or
solenoid valve.
5. Identify and repair the
leaking points, and refill
refrigerant after
maintenance.
6. Reinstall the outdoor unit.
7. Maintain or replace the EEV
coil or EEV.
8. Check and fully open the
stop valve.
9. Check and replace the dryer.
10. Check and replace the
connecting pipe.
Refer to the solution to the
Comp Discharge HT Alarm.
1. Clean the condenser fins.
2. Reinstall the outdoor unit.
3. Adjust or replace the
outdoor temperature sensor.
4. Stabilize the input voltage.
1. Check the refrigerant of the
compressor.
2. Check the cables between
the compressor and the drive
board.
3. Replace the compressor
drive board.
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