Table 42: T640 Cooling System Alarm Messages - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide

Table 42: T640 Cooling System Alarm Messages

Component Alarm Type
Fans Red
Yellow
204
In Table 42 on page 204, the text in the column labeled "LCD Message" appears in the
display of the craft interface. The text in the column labeled "CLI Message" appears in
the output from the
show chassis alarms
LCD Message
Fan Failure
Fans Missing
Fan Removed
Mix of FAN-TRAYS
command.
CLI Message Alarm Condition
fan-name Failure A fan has failed.
A fan tray is missing
Too many fans missing
or too many fan
or failing
trays have failed.
A fan tray has been
fan-name Removed
removed.
A mix of standard
Minor – Mix of
front fan trays and
FAN-TRAYS
quiet front fan trays
are installed in the
chassis.
NOTE:
normal operations,
mixing the standard
and quiet fan trays
is not supported.
Solution
Replace the fan
tray.
Reinstall the fan
tray in the chassis.
Reinstall the fan
tray in the chassis.
Check that all fan
trays are either
standard fan trays
or quiet fan trays.
Install the correct
fan trays.
During
NOTE: During an
upgrade, ignore
this alarm.
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