4. Verify that at least one power supply LED is green.
If any power supply LED is red, replace that power supply.
Fans
Use the procedure in this section if fans are not functioning.
Procedure steps
1.
Check the status of the FAN LED on the rear panel of the chassis.
2. Verify that there is power reaching the router (LEDs are active). Ensure that the
power cable is firmly connected to the router and to the electrical outlet or DC power
source, and that associated breakers are in the "on" position.
3. Ensure the fan tray module is fully inserted and secured in place.
4. If there is power to the router (LEDs are active), enter the following command to
collect information about the fans and the internal temperature of the router: show
environment
Fans
Troubleshooting August 2013 53
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