Alar
m ID
Alarm
Severit
y
Alarm Name
Probable Cause
Solution
A007
-01
MAJOR
Cold aisle 1
temp/humid
sensor comm
failed
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. 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.
A007
-01
MAJOR
Cold aisle 2
temp/humid
sensor comm
failed
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. 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.
NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
6 System Operation and Maintenance
Issue 06 (2020-08-19)
Copyright © Huawei Technologies Co., Ltd.
137