Component
Alarm Name
Alarm
Severit
y
Possible Cause
Measures
Outdoor fan speed
abnormal
Major
1. The external fan
speed is too high.
2. The external fan is
faulty.
1. If the fan is working
properly, add a baffle
plate at the air
return side of the
outdoor unit.
2. Replace the outdoor
fan.
Ambient temp.
sensor fault
Major
1. The cables to the
temp sensor are
loose or damaged.
2. The temp sensor is
faulty.
1. Check the cables to
the temp sensor.
2. Maintain or replace
the temp sensor.
Outdoor unit HT
alm
Critical
1. The ambient
temperature is
higher than the
upper threshold.
2. There is strong
radiation on the
monitoring point,
resulting in high
temperature.
3. The temp displayed
is different from the
actual temp.
1. Measure the ambient
temperature.
2. Install a sunshade.
3. Calibrate or replace
the abnormal
sensors.
Outdoor fan drive
locked
Critical
The outdoor fan fault
alarm is generated
repeatedly during a
period of time.
See the measures for
handling the outdoor
fan fault alarm.
Outdoor fan fault
Critical
1. The cables to the
outdoor fan are
loose or damaged.
2. The outdoor fan is
faulty.
3. The outdoor unit
main board is faulty.
1. Check the cables to
the outdoor fan.
2. Maintain or replace
the outdoor fan.
3. Maintain or replace
the outdoor unit
main board.
FusionModule800 Smart Small Data Center
User Manual
6 O&M
Issue 01 (2021-02-05)
Copyright © Huawei Technologies Co., Ltd.
397