FusionModule1000A40 IT Solution
Maintenance Guide (2016.05, AI Version)
3 Maintenance
Issue 04 (2018-01-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
30
Item
Method
Expected Result Troubleshooting
Transforme
r output
voltage
inside the
electric
control box
Measure the output
voltage of the
internal
transformer.
The output
voltage is normal
(AC 24 V±10%)
If the output voltage is abnormal,
replace the transformer.
Cables
Check cables.
No cable has
aged.
Replace aged cables.
T/H sensors Check the T/H
sensors.
The T/H sensor
reading is normal
and precise.
If the reading of a T/H sensor is
inaccurate, check and calibrate
the T/H sensor using a
temperature and humidity
measuring instrument with
higher precision.
Remove the electric control box before maintaining components inside it.
3.4.3 Monitoring System
Table 3-18
Semi-annual maintenance checklist for the monitoring system
Item
Method
Expected
Result
Troubleshooting
LAN switch
power
indicator
(PWR).
Check the
indicator.
The PWR
indicator is
steady green.
If the indicator is off, check the
power supply. Replace the LAN
Switch if the power supply is
normal.
If the red indicator is steady on:
1.
Check whether two PSUs are
configured, and switch on the
power supply.
2.
Check that the power supply
is switched on.
3.
Replace the LAN Switch if
the power supply to the board
and the PoE power supply are
faulty.
Replace the LAN Switch if the
orange indicator is steady on.