Maintenance And Troubleshooting; Power Module Failure; Fan Failure - H3C S5500-HI Switch Series Installation Manual

Maintenance and troubleshooting

Power module failure

Look at the PWR1 or PWR2 LED of the switch to identify a power module failure. For more information
about the PWR1 and PWR2 LEDs on the front panel of the switch, see
If the power module system is correctly operating, the power module status LEDs are steady green. If the
LEDs behave in any other way, verify the following items:
The switch power cord is correctly connected.
•
The power source meets the requirement.
•
The operating temperature of the switch is in the normal range and the power module has good
•
ventilation.
NOTE:
If the problem persists, contact H3C for help.
To replace a hot swappable power module, see

Fan failure

CAUTION:
For the S5500-28SC-HI and S5500-52SC-HI switches, you can replace the fan tray without powering off
the switch. To prevent overheating, replace the failed fan tray within 2 minutes.
You can look at the system status LED and the seven-segment LED of an S5500-HI switch to identify a fan
failure. If both LEDs are behaving as described in
Table 8 LED behaviors that identify a fan failure
LED
System status LED
Seven-segment LED
The S5500-34C-HI, S5500-34F-HI, S5500-34C-PWR-HI, S5500-58C-HI, and S5500-58C-PWR-HI
switches use built-in fan trays. If a fan failure occurs, promptly contact H3C for help.
The S5500-28SC-HI and S5500-52SC-HI switches use hot swappable fan trays. When the fan tray fails,
use the display fan command to verify that the expected airflow direction is the same as the airflow
direction of the fan tray. If not, use the fan prefer-direction command to modify the configuration.
If the problem still exists, the fan tray might have failed. You can replace the fan tray as described in
"Installing/removing a fan
"Installing/removing a power
Mark
SYS
Unit
tray."
50
"Appendix C Ports and
Table 8, a fan failure occurs.
State
Steady red
The LED displays a flashing F character.
LEDs."
module."