Cisco Systems OL-11497-03 manual

Chapter 4 Troubleshooting the Installation

Problem Solving with Subsystems

•The following console monitor message indicates that the system has detected an overtemperature or out-of-tolerance power condition in the router:

Queued messages:

%ENVM-1-SHUTDOWN: Environmental Monitor initiated shutdown

If an environmental shutdown results from an out-of-tolerance power condition, the output fail LED on the power module will go on before the system shuts down. Refer to the “Troubleshooting the Power Subsystem” section on page 4-23.”

•Although overheating is unlikely at initial startup, be sure that heated exhaust air from other equipment is not entering the air filter, and that there is sufficient clearance—at least 6 inches (15.24 cm)— around the front and rear of the chassis to allow cooling air to enter and hot air to exhaust.

•Check the condition of the two air filters located in slots on the right side of the chassis. If the air filters appear dirty, remove the filters and either vacuum them or replace them.

•The preceding message could also indicate a faulty component or temperature sensor. Before the system shuts down, use the show environment all or show environment table command to display the internal system environment, including voltages and temperatures measured at each card.

If the blower module is faulty, you must replace the entire blower module.

If you are still unable to resolve the problem, contact a service representative for assistance.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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