Huawei FusionCol8000-E240 User Manual page 177

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A279-08 Exhaust air damper
fault
A27C-01 Return air 2 temp/
humid sensor fault
A27C-02
Cold aisle 1 temp/
humid sensor fault
Cold aisle 2 temp/
humid sensor fault
Cold aisle 3 temp/
humid sensor fault
Cold aisle 4 temp/
humid sensor fault
Cold aisle 5 temp/
humid sensor fault
Cold aisle 6 T/H
sensor fault
Hot aisle 1 temp/
humid sensor fault
Hot aisle 2 temp/
humid sensor fault
Hot aisle 3 temp/
humid sensor fault
Hot aisle 4 temp/
humid sensor fault
Hot aisle 5 temp/
humid sensor fault
Hot aisle 6 T/H sensor
fault
Outdoor intake air 1
T/H sensor fault
Outdoor intake air 3
temperature invalid
A27F-01 Water overflow alarm
A27F-02
Issue 02 (2021-04-15)
Alarm
Severity
Critical
Major
Critical
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The control cable
to the air damper is
loose or damaged.
● The air damper is
faulty.
● The cables to the
temperature and
humidity sensor are
loose or damaged.
● The temperature
and humidity
sensor is faulty.
The water overflow
sensor detects water
or the sensor is faulty.
8 System Maintenance
Solution
1. Check the control
cable connection to
the air damper.
2. Maintain or replace
the air damper.
1. Check the cables to
the temperature
and humidity
sensor.
2. Maintain or replace
the temperature
and humidity
sensor.
If the water overflow
sensor is configured,
check and clear the
water source, and
maintain or replace
the sensor.
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