Troubleshooting The Installation; Cleaning Or Replacing The Chassis Air Filter - Cisco 12016 Replacement Instructions Manual

Troubleshooting the Installation

Use the following procedure to troubleshoot a blower module if it is not operating properly after
installation.
Step 1 Be sure the router is powered on and that all power cords are connected properly.
Step 2 Loosen the captive screws and reseat the blower module to the chassis.
•
Step 3 Check the blower module status indicators:
•
•

Cleaning or Replacing the Chassis Air Filter

The Cisco 12016, Cisco 12416, and Cisco 12816 routers are equipped a user-serviceable air filter that
removes dust drawn into the router. One time per month (or more often in dusty environments), examine
the air filter for damage and cleanliness.
Caution Damage to the air filter can restrict the airflow, cause overheating in the router, and degrade EMI
performance. Be careful when cleaning and replacing the filter.
78-16083-02
Retighten the captive screws to ensure the blower module is properly seated to the backplane
connector.
OK (green)—Indicates that the blower module is operating normally. This indicator should light as
soon as the blower module is installed and receives power from the backplane connector.
– If this indicator remains on, and the blower module fans fail to operate after several attempts to
reseat the blower module, replace it with a spare.
If the spare blower module also fails, power off the router and contact a Cisco service
–
representative for assistance.
FAIL (red)—This indicator remains off during normal operation. If this 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 after several attempts to
–
reseat the blower module, replace it with a spare.
If the spare blower module also fails, power off the router and contact a Cisco service
–
representative for assistance.
Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions
Troubleshooting the Installation
7