Fan Tray Failure; Symptom; Troubleshooting Flowchart; Solution - HP FlexFabric 12900 series Troubleshooting Manual

a. Remove and reinstall the power supply to make sure the power supply is installed securely.
Then execute the display power command to verify that the power supply has changed to
Normal state.
b. Remove and install the power supply into an empty power supply slot. Then execute the display
power command to verify that the power supply has changed to Normal state in the new slot.
If the power supply remains in Absent state, go to step 4.
3. Verify that the power supply is operating correctly.
a. Verify that the power supply is connected to the power source correctly. If it is not, connect it
to the power source correctly. Then execute the display power command to verify that the
power supply has changed to Normal state.
b. Remove and install the power supply into an empty power supply slot. Then execute the display
power command to verify that the power supply has changed to Normal state in the new slot.
If the power supply remains in Fault state, go to step 4.
4. If the problem persists, contact HP Support.

Fan tray failure

Symptom

An operating fan tray or a newly installed fan tray fails.

Troubleshooting flowchart

Figure 7 Troubleshooting fan tray failure
An operating or a newly
installed fan tray failure
The fan tray
in Absent state?
The fan tray
in Fault state?
Contact the support

Solution

To resolve the problem:
1. Identify the operating state of the fan tray.
Execute the display fan command to view the operating state of the fan tray.

Yes
No
Yes
No
Remove and reinstall
the fan tray
Replace the fan tray
26
Yes
Resolved?
No
Yes
Resolved?
No
End