Cisco Systems XR 12406 manual Troubleshooting the Blower Installation

Chapter 5 Maintaining the Router

Removing and Replacing the Blower Module

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.

	Cisco XR 12406 Router Installation Guide
5-12	OL-13831-01