Juniper EX4400 - Page 251

Table 83: Causes and Remedies for Temperature Alarms
Cause Remedy
Ambient temperature is above
threshold temperature.
Ensure that the ambient temperature is within the threshold temperature limit.
See Environmental Requirements and Specicaons for EX Series Switches .
Fan module or fan tray has
failed.
Perform the following steps:
1. Check the fan.
2. Replace the faulty fan module or fan tray.
3. If the above two checks show no problems, open a support case using the
Case Manager link at hps://www.juniper.net/support/ or call
1-888-314-5822 (toll-free within the United States and Canada) or
1-408-745-9500 (from outside the United States).
Restricted airow through the
switch due to insucient
clearance around the installed
switch.
Ensure that there is sucient clearance around the installed switch.
Chassis Component Alarm Condions on EX4400 Switches
In this topic, you'll learn about alarm condions on the components installed in the EX4400 switch
chassis.
Table 84 on page 243 lists the alarms that the chassis components can generate on EX4400 switches,
their severity levels, and the acons you can take to respond to them.
Table 84: Alarm
Condions on EX4400 Switches
Chassis
Component
Alarm Condion Alarm Severity Remedy
Fan modules Fan module is not installed. Major (red) Install the fan module.
243