5-50
5
Maintenance and troubleshooting
Fixed power supply failure
To identify a power failure on a switch with fixed power supplies, examine the system status LED
(SYS) on the switch.
Symptom
The system status LED on the switch is off.
Solution
To resolve the issue:
1.
Verify that the power receptacle on the switch is in good condition.
2.
Verify that the power cord is connected correctly.
3.
Verify that the power source is operating correctly.
4.
Verify that the operating temperature of the switch is in the acceptable range, and the power
supply has good ventilation. Overtemperature can cause the power supply to stop working and
enter protection mode.
5.
If the issue persists, contact H3C Support.
Removable power supply failure
The S5120V3-30MS-UPWR-DP-EI switch uses removable power supplies. You can observe the
power supply status LEDs (PWR1 and PWR2) on the front panel of the switch in combination with
the status LEDs on the power supplies to identify power supply failure.
For more information, see
H3C PSR180-56A Power Module User Manual, H3C PSR360-56A Power
Module User Manual
,
H3C PSR560-56D Power Module User Manual
,
H3C PSR720-56A Power
Module User Manual
, and
H3C PSR1110-56A Power Module User Manual
.
Symptom
A power supply LED on the front panel of the switch is not steady green.
Solution
To resolve the issue:
1.
Verify that the power supply model is as required.
2.
Verify that the power supply is installed securely in the switch.
3.
Verify that the power cord is connected correctly.
4.
Verify that the power source is operating correctly.
5.
Verify that the electrical outlet is operating correctly.
6.
Verify that the switch is operating in the acceptable temperature range and the power supply
has good ventilation.
