Huawei NetCol8000-E220 User Manual page 150

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A007
-01
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR Hot aisle 3
temp/humid
sensor comm
failed
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
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.
5. The cables to the
temperature and
humidity sensor are
loose or damaged.
6. The DIP switch of
the temperature
and humidity sensor
is set incorrectly.
7. The temperature
and humidity sensor
is faulty.
8. The
communications
port of the main
control board 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.
5. Check the cables to
the temperature and
humidity sensor.
6. Set the DIP switch of
the temperature and
humidity sensor
correctly.
7. Maintain or replace
the temperature and
humidity sensor.
8. Maintain or replace
the main control
board.
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