Troubleshooting flowchart
Figure 23 Flowchart for troubleshooting fan failure
Solution
To resolve the problem:
1.
Verify that the airflow direction of the fans is as configured:
a.
Identify the airflow direction of the fans.
[Sysname]display fan
Slot 1
b.
If the airflow direction of the fans is not as configured, use the fan prefer-direction slot
slot-number { power-to-port | port-to-power } command to reconfigure the airflow direction.
[Sysname] fan prefer-direction slot 1 port-to-power
c.
Verify the modification.
[Sysname]display fan
Slot 1
FAN
1
State
: FanDirectionFault
Wind Direction
:Port-to-Power
Prefer Wind Direction
FAN
2
State
: FanDirectionFault
Wind Direction
:Port-to-Power
Prefer Wind Direction
FAN
1
:Power-to-Port
:Power-to-Port
53