FusionModule800 Smart Small Data Center
Maintenance Guide
4 Troubleshooting
Issue 02 (2016-11-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
27
Symptom
Possible Cause
Measure
The Alarm indicator (red) is
steady on.
Output overvoltage
protection
If a single PSU is locked
out, disconnect the AC
input from the PSU, and
then power on the PSU
again after the indicator
turns off. If the fault
persists, replace the PSU.
If multiple PSUs are
locked out, remove all
PSUs and reinstall them
one by one to locate the
faulty ones. Then replace
faulty PSUs.
No output due to a PSU
fault
Replace the faulty PSU.
Table 4-4
Common faults and troubleshooting for the monitoring module
No. Symptom
Possible Cause
Measure
1
The Run indicator (green)
is off.
There is no AC input.
If the green indicators on
PSUs are steady on, the
power input to the system
is normal. Otherwise,
rectify power grid faults.
The monitoring module is
faulty or not securely
installed.
Reinstall the monitoring
module. If the fault
persists, replace the
monitoring module.
2
RJ45 power output
indicators turn off
(involved ports:
AI/DI1–AI/DI6,
COM1–COM4, and
DO1–DO2).
The corresponding power
ports have no output.
Energize corresponding
power ports over the
WebUI or network
management system.
The corresponding power
ports are short-circuited.
Check whether the
connected load is
short-circuited. If yes,
eliminate the short circuit.
3
The ALM indicator (red)
is steady on.
Faults and alarms are
generated.
View active alarms on the
WebUI and clear them
one by one.