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Component
Alarm Name
Alarm
Severit
y
Possible Cause
Measures
Outdoor unit input
overcurrent
Major
1. The comp is in lack
of oil.
2. The condenser fins
are blocked.
3. The outdoor units do
not run properly.
4. The refrigerant is
overfilled.
5. The comp is faulty.
6. The ambient
temperature is
higher than the
upper threshold.
7. The outdoor unit
power module is
faulty.
1. Fill oil to the comp.
2. Clean the condenser
fins.
3. Maintain or replace
the outdoor units.
4. Decrease certain
amount of
refrigerant.
5. Maintain or replace
the comp.
6. Measure the ambient
temperature.
7. Maintain or replace
the outdoor unit
power module.
Outdoor fan comm
failure
Major
1. The cables to the
comp driver are
loose or damaged.
2. Maintain or replace
the comp driver.
1. Check the cables to
the comp driver.
2. Maintain or replace
the comp driver.
Outdoor unit main
board fault
Major
Outdoor control board
is faulty.
Maintain or replace the
outdoor control board.
Outdoor unit pwr
module fault
Major
Outdoor hardware is
fault.
Maintain or replace the
outdoor hardware.
Indoor fan fault
Major
1. The power supply to
the indoor fan is
abnormal.
2. The cables to the
indoor fan are loose
or damaged.
3. The indoor fan is
faulty.
1. Check the power
supply to the indoor
fan.
2. Check the cables to
the indoor fan.
3. Maintain or replace
the indoor fan.
Indoor fan exceed
runtime
Warnin
g
The accumulated
runtime of the fan
exceeds the alarm
threshold.
Maintain or replace the
indoor fan and clear the
accumulated runtime.
FusionModule800 Smart Small Data Center
User Manual
6 O&M
Issue 01 (2021-02-05)
Copyright © Huawei Technologies Co., Ltd.
391