6-1
6
Maintenance and troubleshooting
Power module failure
Symptom
The power module status LED on the power module is not steady green (active state) or flashing
green (standby state).
For more information about the LED on a power module, see
H3C S6850-56HF-IM
Immersion-Cooled Switch Hardware Information and Specifications
.
Solution
1.
Verify that the power cord is connectedly correctly.
2.
Verify that the power source is as required by the switch.
3.
If the issue persists, contact H3C Support.
To replace a power module, see "
Installing/removing power modules
Configuration terminal display issues
No display on the configuration terminal
Symptom
The switch starts up but the configuration terminal does not have any display.
Solution
To resolve the issue:
1.
Verify that the power supply is supplying power correctly to the switch.
2.
Verify that the console cable is connected correctly.
3.
Verify that the console cable is in good condition.
4.
Verify that the terminal settings are correct.
5.
If the issue persists, contact H3C Support.
Garbled display on the configuration terminal
Symptom
The configuration terminal displays garbled texts.
Solution
To resolve the issue:
1.
Verify that the configuration terminal settings are correct, as follows:
Baud rate
—9600.
Data bits
—8.