Troubleshooting The Cooling System On The Srx1400 Services Gateway; Table 45: Srx1400 Services Gateway Cooling System Alarm Conditions And Corrective Actions - Juniper SRX1400 Hardware Manual

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Troubleshooting the Cooling System on the SRX1400 Services Gateway

Copyright © 2016, Juniper Networks, Inc.
SRX1400 Services Gateway AC Power Supply on page 50
SRX1400 Services Gateway DC Power Supply on page 51
Replacing an AC Power Supply on the SRX1400 Services Gateway on page 198
Replacing AC Power Supply Cables on the SRX1400 Services Gateway on page 197
Replacing a DC Power Supply on the SRX1400 Services Gateway on page 201
Replacing DC Power Supply Cables on the SRX1400 Services Gateway on page 204
The services gateway cooling system consists of a fan tray and an air filter, both of which
are located in the side of the chassis and plugged in from the rear of the chassis. The fan
tray contains two fans. The fan tray provides cooling to the components installed in the
device.
An air filter installed in the rear of the chassis helps keep dust and other particles from
entering the cooling system. To function properly, the entire cooling system requires an
unobstructed airflow and proper clearance around the site, as described in
Preparation Checklist for the SRX1400 Services Gateway" on page
During normal operation, the fans in the fan tray function at less than full speed. The
Routing Engine constantly monitors the temperatures detected by sensors and services
gateway components, adjusting the speed of the fans as necessary. If the services gateway
temperature exceeds the acceptable maximum, the Routing Engine turns off the power
supplies.
Table 45 on page 161 describes the alarm conditions and corrective actions for SRX1400
Services Gateway cooling system.
Table 45: SRX1400 Services Gateway Cooling System Alarm Conditions
and Corrective Actions
Alarm Conditions
The services gateway fan
has failed.
The services gateway fan
tray is removed
Chapter 25: Troubleshooting Components
Alarm Indications
on SYSIO Card Possible Cause and Corrective Action
Red (critical alarm 1. Use the CLI to get information about the
LED) source of an alarm condition:
user@host> show chassis alarms
2. If the CLI output lists only one fan failure
and the other fan is functioning normally,
the fan is most likely faulty and you need
to replace the fan tray, as described in
"Replacing the Fan Tray on the SRX1400
Services Gateway" on page
Red (critical alarm Reinstall the fan tray.
LED) and Yellow
(non-critical alarm
LED)
"Site
57.
191.
161