Huawei NetCol5000-A User Manual page 190

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Alar Alarm
Alarm
m Severit
ID y
a177 Humidit Major
y
invalid
L1/L2
interrup
t
6.4 Troubleshooting



Table 6-7
Table 6-7 Troubleshooting
Symptom
Issue 13 (2019-01-15)
Default
Impact
Value
N/A The alarm
is
generated
.
Certain circuits in the NetCol5000-A has lethal voltage. Only professional technicians are
allowed to perform maintenance.
Exercise caution during live-line troubleshooting.
If jumpers are used for troubleshooting, remove them after troubleshooting. Connected
jumpers may affect control functions and damage equipment.
describes how to troubleshoot the NetCol5000-A.
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
1. All cabinet T/H sensors
are faulty.
2. All cables to the cabinet
T/H sensors are loose or
damaged.
3. All aisle T/H sensors of
smart cooling products
are faulty.
4. All cables to the aisle
T/H sensors of smart
cooling products are
loose or damaged.
5. All DIP switches of the
T/H sensors are set
incorrectly.
6. All communications
ports of the control
board are faulty.
7. The ETH converter is
faulty.
8. The smart socket is
faulty.
Possible Cause
6 System Operation and Maintenance
Solution
1. Maintain or replace the
cabinet T/H sensors.
2. Maintain or replace the
cables to the temp
sensors, rack
environment units, and
monitoring host
(ECC).
3. Maintain or replace the
T/H sensors of smart
cooling products.
4. Maintain or replace the
cables between the
T/H sensors and the
control board.
5. Set the DIP switches
correctly for T/H
sensor.
6. Maintain or replace the
control board.
7. Maintain or replace the
ETH converter.
8. Maintain or replace the
smart socket.
Solution
181