Cisco 7301 Installation And Configuration Manual page 106

Problem Solving Using a Subsystems Approach
Table 5-2
Symptom
System displays the following message:
Router: 00:03:46:%ENVM-3-BLOWER:Fan 2
may have failed
System shuts down, some fans may or may
not continue to rotate, and this error
message is displayed:
Queued messages:
%ENVM-1-SHUTDOWN: Environmental
Monitor initiated shutdown
This error message indicates that the system
has detected an overtemperature condition
or out-of-tolerance power condition inside
the chassis.
System shuts down and this error message
is displayed:
Queued messages:
%ENVM-1-SHUTDOWN: Environmental
Monitor initiated shutdown
This error message indicates that the system
has detected an overtemperature condition
or out-of-tolerance power condition inside
the chassis.
Note
Cisco 7301 Installation and Configuration Guide
5-6
Troubleshooting the Cooling Subsystem
The system fans may continue to
operate although the system shuts
down.
Chapter 5 Troubleshooting Initial Startup Problems
Possible Cause
One or more fans are not operating.
One or more fans are not
•
operating.
The fans are operating too
•
slowly.
The power supply is not
•
operating.
To determine if the fans are
operating, listen for them. In noisy
environments, place your hand on the
rear of the chassis to feel if air is
being forced out the vents.
Heated exhaust air from other
equipment is entering the router's
inlet vents.
The error message could indicate a
faulty component or temperature
sensor. Before the system shuts
down, use the show environment or
show environment table command
to display the internal chassis
environment. See Chapter 3,
"Starting and Configuring the
Router," the "Reporting Functions"
section on page 3-6 for descriptions
of the show environment and show
environment table commands.)
If an environmental shutdown results
from an out-of-tolerance power
condition, the system shuts down.
Possible Solution
Replace fan 2.
Contact a service
representative
Contact a service
representative.
Move other
equipment or the
router to ensure
proper airflow.
Contact a service
representative.
If the system still
fails to come up
when the power
supply is
connected to a
different power
source with a new
power cable, the
power supply is
probably faulty.
Contact a service
representative.
OL-5418-07