Alarm
ID
Alarm Name
System
Action
Possible Causes
Solution
301
EEV Low
Superheat Degree
Alarm
The
compressor
shuts down.
1. The EEV is faulty or
its step is incorrect.
2. The cables to the
EEV are not properly
connected.
3. The EEV coil is
loose.
4. The plug of the EEV
is loose.
5. The plug of the EEV
is short-circuited.
6. The outdoor
temperature sensor
displays an incorrect
temperature or is
faulty.
1. Check and replace
the EEV.
2. Check and replace
the EEV body.
3. Secure the EEV coil.
4. Secure the plug.
5. Eliminate the short-
circuit fault.
6. Adjust or replace
the outdoor
temperature sensor.
302
EEV Low
Superheat Lock
Alarm
The
compressor
shuts down.
(The alarm
needs to be
manually
cleared.)
The EEV Low
Superheat Alarm is
triggered multiple
times within a
specified period of
time.
Refer to the solution to
the EEV Low Superheat
Alarm.
303
EEV Drive Alarm
The
compressor
shuts down.
1. The EEV is not
connected.
2. The EEV coil is
short-circuited.
3. The EEV drive circuit
of the indoor unit
main control board
is faulty.
1. Check the cables to
the EEV.
2. Check whether the
EEV coil is short-
circuited.
3. Replace the main
control board of the
indoor unit.
304
EEV Drive Lock
Alarm
The
compressor
shuts down.
The EEV Drive Alarm is
triggered multiple
times within a
specified period of
time.
Refer to the solution to
the EEV Drive Alarm.
NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
5 System Operation and Maintenance
Issue 02 (2020-11-09)
Copyright © Huawei Technologies Co., Ltd.
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