Huawei NetCol5000-A050 - Page 245

Alarm
ID
Alarm Name Alar
m
Seve
rity
Possible Cause Solution
A28E-2
0
Compressor
drive alarm
MAJ
OR
1. The fans in the
compressor drive
are faulty.
2. The air vents of
the fans in the
compressor drive
are dirty or
blocked.
3. The compressor
drive heat sink is
dirty, so the heat
exchange
eect is
poor.
4. The Elec control
box cavity is dirty
or blocked, and
the module heat
exchange
eect is
poor.
5. The drive
module is faulty.
1. Check the fans in the
compressor drive.
2. Clean the air vents of
the fans in the
compressor drive.
3. Clean the heat sink
after
power-o.
4. Clean the cavity after
power-o.
5. Replace the drive
module.
A28F-0
2
Compressor
drive power
supply
abnormal
MAJ
OR
1. The power
supply voltage is
high.
2. The compressor
drive is faulty.
1. Check the power
supply voltage.
2. Maintain or replace
the compressor drive.
A28F-0
1
Compressor
drive power
supply
abnormal
MAJ
OR
1. The power
supply voltage is
low.
2. The compressor
drive is faulty.
3. The primary
power supply is
faulty or the
cables to the
compressor drive
are loose or
damaged.
1. Check the power
supply voltage.
2. Maintain or replace
the compressor drive.
3. Check the primary
power supply and the
cable connection to the
compressor drive.
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 9 Alarm Reference
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 235