Huawei NetCol8000-A013 User Manual page 96

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (800 mm Width)
Alarm Alarm Name
ID
218 Comp Drive
Short Period
Alarm
219 Comp Drive
Lock Alarm
220 Comp
Preheating
Alarm
221 Comp Antifrz
Protect Alarm
222 Comp Run
Timeout
Alarm
301 EEV Low
Superheat
Issue 05 (2019-12-20)
System Possible Causes
Action
The The Comp Drive Alarm is
compressor triggered multiple times within
shuts down. a specified period of time.
(The alarm
needs to be
manually
cleared.)
The One of the OutUnit Input
compressor Overcur Alarm, Comp Drive
shuts down.
Overload Alarm, OutUnit
Power Hardware Fault, and
Comp Start Fail Alarm is raised
six times within one hour.
The The compressor preheating
compressor function is started and the
shuts down. preheating is not complete.
1. Refrigerant leaks.
The
compressor 2. The evaporator coil pipe
shuts down. temperature sensor displays
(The alarm an incorrect temperature.
needs to be
3. The compressor suction
manually
pressure sensor displays an
cleared.)
incorrect pressure after the
coil pipe temperature sensor
is faulty.
4. The dryer is blocked.
5. The EEV is blocked.
6. The air vent of the indoor
unit is blocked.
7. The indoor fan rotates
reversely.
-- The runtime of the compressor
exceeds the preset threshold.
1. The EEV is faulty or its step
The
is incorrect.
compressor
Copyright © Huawei Technologies Co., Ltd.
5 System Operation and Maintenance
Solution
drive board.
3. Check the status of the
compressor drive board.
4. Replace the compressor
drive board or compressor.
Refer to the solution to the
Comp Drive Alarm.
1. Check the compressor
status.
2. Check the connection status
of the compressor and the
drive board.
3. Check the status of the
compressor drive board.
4. Replace the compressor
drive board or compressor.
Wait until the unit is preheated
completely.
1. Identify and repair the
leaking points, and refill
refrigerant after
maintenance.
2. Calibrate or replace the
evaporator coil pipe
temperature sensor.
3. Calibrate or replace the
suction pressure sensor
4. Maintain or replace the
dryer.
5. Maintain or replace the
EEV.
6. Check that the air vent of
the indoor unit is not
blocked.
7. Check the cable connections
to the indoor fan.
Replace the compressor and
clear the cumulative runtime.
1. Check and replace the EEV.
2. Check and replace the EEV
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