Alarm ID Alarm Name Alarm
Severity
Possible Cause Solution
A296-01 EEV 1 low superheat
degree alarm
EEV 2 low superheat
degree alarm
Major ● The electronic
expansion valve
(EEV) coil is loose.
● The EEV coil is
faulty.
● The cables to the
EEV coil are loose
or damaged.
● The EEV is faulty.
1. Reinstall the EEV
coil.
2. Replace the EEV
coil.
3. Check and maintain
the cables to the
EEV coil.
4. Replace the EEV.
A296-02 EEV 1 low superheat
degree alarm
EEV 2 low superheat
degree alarm
Critical ● The electronic
expansion valve
(EEV) coil is loose.
● The EEV coil is
faulty.
● The cables to the
EEV coil are loose
or damaged.
● The EEV is faulty.
1. Reinstall the EEV
coil.
2. Replace the EEV
coil.
3. Check and maintain
the cables to the
EEV coil.
4. Replace the EEV.
A30C-01
A30C-02
A30C-04
Certicate is about to
expire
Warning ● The corresponding
certicate is about
to expire.
● The system time is
incorrectly set.
1. Apply for a new
certicate promptly
and update the
existing one.
2. Calibrate the
system time.
A30D-01 Certicate is not in
eect
Warning ● The installed
certicate does not
take eect.
● The connection of
the corresponding
certicate server is
abnormal.
● The corresponding
certicate is not
within the validity
period.
1. Ensure that the
certicate is
correctly installed.
2. Ensure that the
connection of the
certicate server is
normal.
3. Ensure that the
installed
certicate
is within the
validity period.
A30E-01
A30E-02
A30E-04
Certicate has expired Warning ● The corresponding
certicate has
expired.
● The system time is
incorrectly set.
1. Apply for a new
certicate promptly
and update the
existing one.
2. Calibrate the
system time.
NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual 10 Alarm Reference
Issue 05 (2020-10-10) Copyright © Huawei Technologies Co., Ltd. 254