Component
Alarm Name
Alarm
Severit
y
Possible Cause
Measures
Comp discharge
HP
Major
1. The outdoor unit
input power has an
open phase,
incorrect phase
sequence, or is
unavailable.
2. Signal cables to the
outdoor unit are not
properly connected.
3. The condenser fins
are blocked.
4. The outdoor fan
driver or fan is
faulty.
5. The discharge press
displayed is different
from the actual
press.
6. The EEV is faulty.
7. The refrigerant is
overfilled.
1. Check the outdoor
unit power supply.
2. Check the signal
cables to outdoor
unit.
3. Clean the condenser
fins.
4. Maintain or replace
the outdoor fan drive
or fan.
5. Calibrate or replace
the discharge press
sensor.
6. Maintain or replace
the EEV.
7. Decrease certain
amount of
refrigerant.
Comp discharge
HP lock
Critical
1. The outdoor unit
input power has an
open phase,
incorrect phase
sequence, or is
unavailable.
2. Signal cables to the
outdoor unit are not
properly connected.
3. The condenser fins
are blocked.
4. The outdoor fan
driver or fan is
faulty.
5. The discharge press
displayed is different
from the actual
press.
6. The EEV is faulty.
7. The refrigerant is
overfilled.
1. Check the outdoor
unit power supply.
2. Check the signal
cables to outdoor
unit.
3. Clean the condenser
fins.
4. Maintain or replace
the outdoor fan drive
or fan.
5. Calibrate or replace
the discharge press
sensor.
6. Maintain or replace
the EEV.
7. Decrease certain
amount of
refrigerant.
FusionModule800 Smart Small Data Center
User Manual
6 O&M
Issue 01 (2021-02-05)
Copyright © Huawei Technologies Co., Ltd.
386