57
Troubleshooting
This chapter includes these sections:
•
MPU failures
•
Interface module failures
•
Power supply failures
•
Fan failures
•
Configuration system problems
•
Using the AUX port as the backup console port
•
Password loss
•
Cooling system failure
•
Host software file missing errors
NOTE:
The barcode stuck on the firewall chassis contains production and servicing information. Before you return
a faulty firewall for serving, provide the barcode information of the firewall to your local sales agent.
MPU failures
RUN LED is off
When the RUN LED of the MPU is off, it indicates that the MPU is powered off or faulty. For more
information about the RUN LED, see the chapter “
Appendix B LEDs
.”
Follow these steps to troubleshoot the MPU failure:
1.
Check whether the MPU is plugged in a right slot (slot 0).
2.
Check whether the firewall is powered on normally. A green POWER LED indicates that the
firewall is powered on normally.
3.
If the cause cannot be located in the steps above and the problem persists, contact your local sales
agent.
RUN LED fast flashes
Five minutes after the firewall is powered on or the MPU is plugged into the firewall, if the RUN LED of the
MPU still fast flashes at 8 Hz, it indicates that the MPU application program fails to start or the MPU is
faulty.
Follow these steps to troubleshoot the MPU failure:
1.
Check whether the terminal display is correct.
2.
Check whether the application program file properties are correct in the BootWare menu.
3.
If the cause cannot be located in the steps above and the problem persists, contact your local sales
agent.