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1
Router
chassis
5
Fan
assembly
#2
2
Nonport
(rear)
side
of
router
6
Fan
assembly
#1
3
Fan
assembly
#3
Time
required
Less
than
2
minutes.
Items
required
v
New
fan
assembly
v
Phillips
screwdriver
DANGER
Hazardous
voltage,
current,
or
energy
levels
are
present
inside
any
component
that
has
this
label
attached.
(L001)
Do
not
service,
there
are
no
serviceable
parts.
Attention:
Disassembling
any
part
of
the
fan
assembly
voids
the
part
warranty
and
regulatory
certifications.
There
are
no
user-serviceable
parts
inside
the
fan
assembly.
Since
the
cooling
system
relies
on
pressurized
air,
do
not
leave
any
of
the
fan
assembly
slots
empty
longer
than
2
minutes
while
the
router
is
operating.
If
a
fan
assembly
fails,
leave
it
in
the
chassis
until
it
can
be
replaced.
Replace
any
failed
assembly
as
soon
as
possible
to
ensure
proper
unit
cooling.
Each
fan
assembly
has
an
LED
that
indicates
operational
status.
Use
the
LEDs
to
verify
which
fan
assembly
needs
to
be
replaced.
Refer
to
“Fan
assembly
LED
patterns”
on
page
35
to
help
diagnose
problems
with
a
fan
assembly.
You
can
also
use
the
switchStatusShow
command
to
verify
the
status
of
the
fans.
Refer
to
the
Fabric
OS
Command
Reference
for
more
information
on
this
command.
Procedure
To
replace
a
fan
assembly:
1.
Unscrew
the
captive
screw
(
3
in
Figure
13
on
page
44)
on
the
fan
assembly
you
are
replacing
using
a
Phillips
screwdriver.
Chapter
4.
Removing
and
replacing
CRUs
43
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