Huawei NetCol5000-A025 User Manual page 196

NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width)
Al
ar
m
ID
a0
2
3
Issue 15 (2020-12-10)
Alarm Ala Impact
Name rm
Sev
erit
y
Hot MA Generates
aisle JOR an alarm.
1/2/3/4
/5
temp/
humid
sensor
comm
failed
Electric MA Generates
heater JOR an alarm
1 fault and shuts
down the
electric
heater.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
1. The cables to
the temperature
and humidity
sensor are loose
or damaged.
2. The DIP switch
of the
temperature and
humidity sensor
is set incorrectly.
3. The temperature
and humidity
sensor is faulty.
4. The
communications
port of the main
control board is
faulty.
1. The cables to
the temperature
switch are loose
or damaged.
2. The temperature
switch is faulty.
3. The electric
heater is faulty.
Solution
1. Check the cables to
the temperature
and humidity
sensor.
2. Set the DIP switch
of the temperature
and humidity
sensor correctly.
3. Maintain or replace
the temperature
and humidity
sensor.
4. Maintain or replace
the main control
board.
1. Check the cables to
the temperature
switch.
2. Maintain or replace
the temperature
switch.
3. Replace the electric
heater.
186