x510DP-52GTX Installation Guide
Problem 8: The Switch ID LED on the front of the switch is flashing the letter “F.”
Solutions: One or more of the following problems has occurred:
A cooling fan has failed.
An unsupported PSU has been installed.
One of the PSUs has failed.
The input voltage on one or both of the PSUs is outside the normal operating range.
The internal temperature of the switch has exceeded the normal operating range and the switch may shut down.
Note
You can use the SHOW SYSTEM ENVIRONMENT command in the command line interface to identify the source of the problem.
Contact your Allied Telesis sales representative for assistance.
