Fan Tray Failure; Symptom; Solution - H3C S6805 Series Troubleshooting Manual

5. If the issue persists, contact H3C Support.

Fan tray failure

Symptom

A trap or log indicates that a fan tray is faulty, or the display fan command shows that a fan tray is
not in Normal state.

Solution

To resolve the issue:
1. Execute the display fan command to display the operating states of the fan tray.
<Sysname> display fan
Slot 1:
Fan 1:
State
Airflow Direction: Port-to-power
Prefer Airflow Direction: Power-to-port
Fan 2:
State
Airflow Direction: Port-to-power
Prefer Airflow Direction: Power-to-port
If the fan tray is in FanDirectionFault state, the airflow direction of the fan tray is not as
configured. Replace the fan tray with a fan tray that has the same airflow direction as the
equipment room, or use the fan prefer-direction command to change the preferred airflow
direction.
2. If the fan tray is in the slot but it is in Absent state, remove and reinstall the fan tray to make
sure the fan tray is installed securely. Then execute the display fan command to verify that the
fan tray has changed to Normal state. If the fan tray remains in Absent state, replace the fan
tray.
3. Observe the alarm LED on the fan tray.
If the alarm LED is on, the fan tray is operating incorrectly.

If the alarm LED is off, the fan tray is operating correctly.

4. If the fan tray is in Fault state and its alarm LED is on, the fan tray is faulty. Perform the
following tasks:
a. Execute the display environment command to display temperature information. If the
temperature continues to rise, put your hand at the air outlet to feel if air is being expelled
out of the air outlet. If no air is being expelled out of the air outlet, remove and reinstall the
fan tray. Then execute the display fan command to verify that the fan tray has changed to
Normal state and observe whether its alarm LED is off.
b. If the issue persists, replace the fan tray.
If no new fan tray is available, power off the switch to avoid damage caused by high
temperature. If you can use cooling measures to ensure that the device operates in an
temperature below 60°C (140°F), you can continue to use the device but prepare a new fan
tray to replace the failed fan tray as soon as possible.
5. If the issue persists, contact H3C Support.
: FanDirectionFault
: FanDirectionFault
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