Huawei NetCol8000-E220 User Manual page 173

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A172
-01
A172
-01
A174
-01
A174
-01
A174
-02
A184
-01
A184
-01
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR SPD and
voltage
detection
board comm
failed
MAJOR Backup SPD
and volt
detection
board comm
failed
MAJOR SPD function
failure
MAJOR Backup SPD
function
failed
MAJOR SPD function
failure
WARNI Compressor 1
NG preheating
alarm
WARNI Compressor 2
NG preheating
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The
communications
cable is not
connected properly.
2. The SPD and
voltage detection
board is faulty.
3. The
communications
port of the main
control board is
faulty.
1. The
communications
cable is not
connected properly.
2. The SPD and
voltage detection
board is faulty.
3. The
communications
port of the main
control board is
faulty.
The SPD and
voltage detection
board is faulty.
The SPD and
voltage detection
board is faulty.
1. The SPD is faulty.
2. The cable to the
SPD is not
connected properly.
The compressor is
preheating.
The compressor is
preheating.
Solution
1. Check the
communications cable.
2. Replace the SPD and
voltage detection
board.
3. Maintain or replace
the main control
board.
1. Check the
communications cable.
2. Replace the SPD and
voltage detection
board.
3. Maintain or replace
the main control
board.
1. Replace the SPD and
voltage detection
board.
1. Replace the SPD and
voltage detection
board.
1. Replace the SPD.
2. Check the cable
connection to the SPD.
1. Power on the device
after the compressor
has preheated.
1. Power on the device
after the compressor
has preheated.
164