Troubleshoot Temperature Alarms In Ex Series Switches; In This Section - Juniper EX9253 Hardware Manual

Troubleshoot Temperature Alarms in EX Series Switches

IN THIS SECTION

Problem | 165
Cause | 165
Solution | 165
Problem
Description
EX Series switches generate a temperature alarm FPC 0 EX-PFE1 Temp Too Hot.
Cause
Temperature sensors in the chassis monitor the temperature of the chassis. The switch raises an alarm if
a fan fails or if the temperature of the chassis exceeds permissible levels.
Solution
When the switch raises a temperature alarm such as the FPC 0 EX-PFE1 Temp Too Hot alarm, use the
and the
chassis environment show chassis temperature-thresholds
triggered the alarm.
CAUTION: To prevent the switch from overheating, do not operate it in an area that
exceeds the maximum recommended ambient temperature. To prevent airflow
restriction, allow at least 6 inches (15.2 cm) of clearance around the ventilation
openings.
1. Connect to the switch by using Telnet and issue the
displays environmental information about the switch chassis, including the temperature, and
information about the fans, power supplies, and Routing Engines. Following is a sample output on an
EX9208 switch. The output is similar on other EX Series switches.
commands to identify the condition that
command. This command
show chassis environment
165
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