Huawei NetCol5000-A025 - Page 203

Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
a0
5
1
Hot
aisle
high
temper
ature
alarm
CRI
TIC
AL
Generates
an alarm.
1. The temperature
sensors or
temperature and
humidity sensors
are located in
inappropriate
positions.
2. The thermal
load power is
high or the
cooling capacity
is
insucient.
3. The ambient
temperature
exceeds the
upper threshold.
4. The high
temperature
alarm threshold
is inappropriate.
5. The value
detected by the
temperature
sensor or
temperature and
humidity sensor
is
dierent from
the actual value.
1. Adjust the
positions of the
temperature
sensors or
temperature and
humidity sensors.
2. Add smart cooling
products or contact
Huawei technical
support.
3. Measure the
ambient
temperature. Check
whether other
causes exist if the
alarm persists in a
long time after
startup.
4. Adjust the high
temperature alarm
threshold.
5. Calibrate or replace
the temperature
sensor or
temperature and
humidity sensor.
a0
5
3
PSU
1/2
fault
MA
JOR
Generates
an alarm.
The PSU is faulty. Maintain or replace
the PSU.
a0
5
4
PSU
1/2
commu
nicatio
n failed
MA
JOR
Generates
an alarm.
1. The
communications
cables of the
PSU are loose or
damaged.
2. The PSU is
faulty.
3. The
communications
port of the main
control board is
faulty.
1. Check the
communications
cables of the PSU.
2. Maintain or replace
the PSU.
3. Maintain or replace
the main control
board.
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. 193