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6
Maintenance and troubleshooting
Power module failure
Symptom
The power module status LED on the power module is not steady green.
For more information about the LED on a power module, see H3C S6850-56HF-CP Cold
Plate-Based Liquid-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.
Verify that the operating temperature of the switch is in an acceptable range, and adequate
ventilation is provided for the switch.
4.
If the issue persists, contact H3C Support.
To replace a power module, see
Fan tray failure
Symptom
The status LED on a FAN-40B-1-C or FAN-40F-1-D fan tray is steady red and the system outputs
alarm messages.
Solution
See
"Installing/removing fan
CAUTION:
The switch has four fan tray slots. If multiple fan trays fail on an operating switch, do not remove the
fan trays at the same time. Replace the fan trays one after another and finish replacing a fan tray
within 3 minutes.
Configuration terminal display issues
No display on the configuration terminal
Symptom
The switch starts up but the configuration terminal does not have any display.
"Installing/removing power
trays" to replace the fan tray. If the issue persists, contact H3C Support.
6-1
modules."
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