Allied Telesis AT-MCF2000 - Manual (Page 46)

Chapter 3: Troubleshooting
46
ˆ Verify that the power cord to the power supply module in
the chassis is firmly connected to the power supply
module and the power source.
ˆ View the LED on the fan module to determine whether
the module is operating properly. If the LED indicates
the fan module is receiving power but a fan has failed,
replace the fan module. The description of the LED can
be found in the module’s Installation Guide.
ˆ Remove and reinstall the fan module.
ˆ Replace the fan module with either another fan module
or a power supply module. If the replacement module
works, the problem is with the original fan module. If the
replacement module does not work, the problem is with
the chassis.
Note
If you need further assistance, please contact Allied
Telesis Technical Support. Refer to “Contacting Allied
Telesis” on page 12.