Huawei FusionCol8000-E240 User Manual page 170

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A094-01 Low humidity alarm
A105-01 Indoor fan failure
alarm
A105-01 Exhaust fan function
failure alarm
A118-01 Backup power failure
alarm
A118-02
Primary power failure
alarm
Issue 02 (2021-04-15)
Alarm
Severity
Warning
Critical
Critical
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The ambient
humidity is below
the lower
threshold.
● The temperature
and humidity
sensor is not
installed in a
proper position.
● The low humidity
alarm threshold is
inappropriate.
● The value detected
by the temperature
and humidity
sensor is different
from the actual
value.
● The accumulated
runtime of the fan
exceeds the alarm
threshold.
● The cable to the
fan is not
connected properly.
● The power supply
to the fan is
abnormal.
● The fan is faulty.
● The cable to the
fan is not
connected properly.
● The power supply
to the fan is
abnormal.
The power supply is
faulty.
8 System Maintenance
Solution
1. Measure the
ambient humidity.
2. Adjust the position
of the temperature
and humidity
sensor.
3. Adjust the low
humidity alarm
threshold.
4. Calibrate or replace
the temperature
and humidity
sensor.
1. Maintain or replace
the fan, and clear
the accumulated
runtime.
2. Check the cable
connection to the
fan.
3. Check the power
supply to the fan.
1. Maintain or replace
the fan.
2. Check the cable
connection to the
fan.
3. Check the power
supply to the fan.
Check the power
supply.
161