Cisco XR 12404 - Manual (Page 124)

Chapter 4 Troubleshooting the Installation
Troubleshooting the Cooling Subsystem
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Cisco XR 12404 Router Installation Guide
OL-13830-02
clearance (at least 6 inches, 15.24 cm) around all sides of the chassis to allow
cooling air to enter and hot air to exhaust. Should an overtemperature
condition occur at initial startup:
– Check the condition of the air filter. If the air filter appears dirty, you
should remove the air filter and replace it; or remove the air filter, take it
away from the chassis, and vacuum the air filter.
– The overtemperature condition message could also indicate a faulty
component or temperature sensor. Before the system shuts down, use the
show environment all or show environment table commands to view
the internal system environment including voltages and temperatures
measured at each card.
If you are still unable to resolve the problem, contact a service representative for
assistance.
todd.book Page 26 Monday, March 16, 2009 2:47 PM