Huawei NetCol8000-E220 User Manual page 208

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A28F
-10
A28F
-10
A291
-01
A291
-01
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR Compressor 1
drive power
supply
abnormal
MAJOR Compressor 2
drive power
supply
abnormal
MAJOR Compressor 1
overcurrent
alarm
MAJOR Compressor 2
overcurrent
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The cables to
phase W of the
compressor drive
are loose or
damaged.
2. The compressor
drive is faulty.
1. The cables to
phase W of the
compressor drive
are loose or
damaged.
2. The compressor
drive is faulty.
1. The compressor
lacks oil.
2. The condenser
fins are dirty or
blocked.
3. The outdoor fan
is abnormal.
4. The refrigerant is
overfilled.
5. The compressor is
faulty.
1. The compressor
lacks oil.
2. The condenser
fins are dirty or
blocked.
3. The outdoor fan
is abnormal.
4. The refrigerant is
overfilled.
5. The compressor is
faulty.
Solution
1. Check the cables to
the compressor drive.
2. Maintain or replace
the compressor drive.
1. Check the cables to
the compressor drive.
2. Maintain or replace
the compressor drive.
1. Fill oil to the
compressor.
2. Clean the condenser
fins.
3. Maintain or replace
the outdoor fan.
4. Decrease certain
amount of refrigerant.
5. Maintain or replace
the compressor.
1. Fill oil to the
compressor.
2. Clean the condenser
fins.
3. Maintain or replace
the outdoor fan.
4. Decrease certain
amount of refrigerant.
5. Maintain or replace
the compressor.
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