Table 7-2 Routine maintenance for the main control module in the ECC800-Pro
Check Item
Expected Result
Troubleshooting
Indicator
The green indicator is
steady on or blinking.
If the indicator is off or any
abnormal condition occurs, see
common faults and troubleshooting
to rectify the fault.
Network
port
indicator
The green indicator is
steady on, and the yellow
indicator is blinking.
If the indicator status is abnormal,
check the network cable connection.
Operating
environment
● Ambient temperature:
–20°C to +50°C
● Humidity: 5–95% RH
(non-condensing)
If the humidity or temperature is
abnormal, check the smart cooling
product status.
Cable
connection
The cable connection is
secure.
Secure loose cables.
Cables are not damaged.
Replace damaged cables.
7.2 Common Faults and Troubleshooting
Table 7-3 Common faults and troubleshooting for PSUs
Symptom
Possible Cause
Measure
The PWR indicator
(green) is off.
There is no AC input.
Check whether the AC
input is abnormal.
The PSU is faulty.
Replace the PSU.
The ALM indicator
(yellow) is steady on.
Over temperature
protection is triggered.
● The ambient
temperature exceeds
the upper threshold,
and the cooling
capacity of the smart
cooling product needs
to be increased.
● The air channel is
obstructed and needs
to be unblocked.
AC input overvoltage or
undervoltage protection
is triggered.
Check whether the AC
input is abnormal.
The ALM indicator
(yellow) is blinking.
Communication with the
PSU is interrupted.
1. Clean the connector
in the rear of the
faulty PSU.
ECC800 Data Center Controller
User Manual
7 Maintenance
Issue 04 (2021-10-09)
Copyright © Huawei Technologies Co., Ltd.
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