Symptom Possible Cause Measure
The user forgot the
password.
None ● If the user forgot only
the LCD password
(the preset password
is 000001), use the
feature code (the
preset feature code is
999999) to activate
the LCD password.
● If the user forgot the
LCD password and
feature code, contact
your local Huawei
technical support.
6.2.2 Management System Troubleshooting
Table 6-5 Common faults and troubleshooting for PSUs
Symptom
Possible Cause Measure
The Power indicator
(green) is o.
No AC input Check whether the AC
input is abnormal.
PSU fault Replace the PSU.
The Alarm indicator
(yellow) is steady on.
Overtemperature
protection
● The ambient
temperature exceeds
the upper threshold.
Increase the cooling
capacity of the smart
cooling product.
● The air channel is
blocked. Unblock it.
AC input overvoltage or
undervoltage protection
Check whether the AC
input is abnormal.
The Alarm indicator
(yellow) is blinking.
PSU communication
failure
1. Clean the connector
in the rear of the
faulty PSU.
2. If the fault persists,
replace the ECC800-
Pro subrack.
Monitoring module
communication failure
FusionModule500 Smart Mini Data Center
User Manual (Philippines, FusionModule500-
SU61A12S) 6 O&M
Issue 02 (2021-06-30) Copyright © Huawei Technologies Co., Ltd. 174
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