Cisco XR 12406 - Manual (Page 176)

Chapter 5 Maintaining the Router
Removing and Replacing the Blower Module
5-12
Cisco XR 12406 Router Installation Guide
OL-13831-01
Troubleshooting the Blower Installation
Use the following procedure to troubleshoot the blower module if it is not
operating properly after installation.
Caution To prevent overheating, do not operate the system without the blower module
operational for more than a few minutes.
Step 1 Be sure the router is powered on and that all power cords are connected properly.
Step 2 Loosen the four captive screws and reseat the blower module to the chassis.
Retighten the captive screws to ensure the blower module is properly seated to the
backplane connector.
Step 3 Check the blower module status indicators:
• OK (green)—This indicator should light as soon as the blower module is
installed and receives power from the backplane connector. It indicates that
the blower module is operating normally.
• Fail (red)—This indicator remains off during normal operation. If the
indicator is on, the system has detected a fan failure or other fault in the
blower module.
– If this indicator remains on and the blower module fans fail to operate
normally after several attempts to reseat the blower module, replace the
existing blower module with a spare.
– If the spare blower module also fails, power off the router and contact a
Cisco service representative for assistance.