5-1
5
Maintenance and troubleshooting
Power supply failure
Symptom
The status LED on a power supply is not steady green (active state) or flashing green (standby
state).
You can use the status LED on a power supply to identify a power supply failure. For more
information about the status LED on a power supply, see
H3C PSR450 Power Module Series User
Manual
.
Solution
To resolve the issue:
1.
Verify that the power cord is correctly connected.
2.
Verify that the power source is as required by the power supply.
3.
Verify that the operating temperature of the switch is in an acceptable range and good
ventilation is provided for the power supply.
4.
If the issue persists, contact the H3C Support
To replace a power supply, see "
Installing and removing a power supply
."
Fan tray failure
CAUTION:
If more than one fan tray fails during the switch operation, do not remove the failed fan trays
simultaneously. Replace the fan trays one by one and finish replacing each fan tray within 3 minutes.
Symptom
The status LED on a fan tray is flashing and the system outputs a message that indicates a fan tray
failure.
Solution
See "
Installing and removing a fan tray
" to replace the failed fan tray.
Configuration terminal display issues
No display on the configuration terminal
Symptom
The configuration terminal does not have display when the switch is powered on.
