Huawei NetCol5000-A050 - Page 246

Alarm
ID
Alarm Name Alar
m
Seve
rity
Possible Cause Solution
A28F-0
4
Compressor
drive power
supply
abnormal
MAJ
OR
1. The cables to
phase U of the
compressor drive
are loose or
damaged.
2. The compressor
drive is faulty.
1. Check the cables to
the compressor drive.
2. Maintain or replace
the compressor drive.
A28F-0
8
Compressor
drive power
supply
abnormal
MAJ
OR
1. The cables to
phase V of the
compressor drive
are loose or
damaged.
2. The compressor
drive is faulty.
1. Check the cables to
the compressor drive.
2. Maintain or replace
the compressor drive.
A28F-1
0
Compressor
drive power
supply
abnormal
MAJ
OR
1. The cables to
phase W of the
compressor drive
are loose or
damaged.
2. The compressor
drive is faulty.
1. Check the cables to
the compressor drive.
2. Maintain or replace
the compressor drive.
A291-0
1
Compressor
overcurrent
alarm
MAJ
OR
1. The compressor
lacks oil.
2. The condenser
ns are dirty or
blocked.
3. The outdoor fan
is abnormal.
4. The refrigerant
is
overlled.
5. The compressor
is faulty.
1. Fill oil to the
compressor.
2. Clean the condenser
ns.
3. Maintain or replace
the outdoor fan.
4. Decrease certain
amount of refrigerant.
5. Maintain or replace
the compressor.
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 9 Alarm Reference
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 236