Huawei NetCol5000-A025 - Page 214

Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
a1
9
1
EEV
drive
power
failure
alarm
CRI
TIC
AL
Generates
an alarm
and shuts
down the
compressor.
The main control
module is faulty.
Replace the main
control module.
a1
9
3
Air-side
di
pressur
e
sensor
fault
MA
JOR
Generates
an alarm.
1. The dierential
pressure sensor
cable is loose or
damaged.
2. The pressure
tube of the
dierential
pressure sensor
is reversely
connected.
3. The
dierential
pressure sensor
is faulty.
1. Check the cable
connection to the
dierential
pressure sensor.
2. Check the tube
connection to the
dierential
pressure sensor.
3. Maintain or replace
the
dierential
pressure sensor.
a2
2
0
Wizard
startup
is in
progres
s
WA
RNI
NG
Generates
an alarm.
Wizard startup is in
progress.
Wait until wizard
startup is complete or
clear the Wizard
startup in progress
alarm manually to
exit wizard startup.
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 6 System Operation and Maintenance
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 204