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Chapter
6.
Troubleshooting
This
chapter
provides
basic
troubleshooting
information
to
help
you
resolve
some
common
problems
that
might
occur
while
you
are
using
the
uninterruptible
power
supply.
Audible
alarms
and
uninterruptible
power
supply
conditions
The
uninterruptible
power
supply
has
an
audible
alarm
feature
to
alert
you
of
potential
power
problems.
Use
Table
6
to
determine
and
resolve
the
uninterruptible
power
supply
alarms
and
conditions.
Load level LEDs
On button
Off button
Alarm reset button
General alarm LED
On battery LED
Battery service LED
Site wiring fault LED
Power on LED
Silencing
an
audible
alarm
To
silence
the
alarm
for
an
existing
fault,
press
the
Alarm
reset
button.
If
the
uninterruptible
power
supply
status
changes,
the
alarm
beeps,
overriding
the
previous
alarm
silencing.
The
alarm
does
not
silence
if
there
is
a
low
battery
condition.
Troubleshooting
guide
The
uninterruptible
power
supply
alarms,
conditions,
causes,
and
actions
are
described
in
Table
6.
Use
the
following
LED
legend
for
an
explanation
of
the
LEDs.
Red
Flashing
Not lit
Green
LED legend
Table
6.
Troubleshooting
guide
Alarm
or
condition
Possible
cause
Action
The
Power-on
LED
is
not
lit;
the
uninterruptible
power
supply
does
not
start.
The
power
cord
is
not
connected
correctly.
Check
the
power
cord
connections
The
wall
outlet
is
faulty.
Have
a
qualified
electrician
test
and
repair
the
outlet.
The
Power-on
LED
is
flashing;
power
is
not
available
at
the
uninterruptible
power
supply
output
receptacles.
The
uninterruptible
power
supply
is
in
Standby
mode.
Press
the
On
button
to
supply
power
to
the
connected
devices.
©
Copyright
IBM
Corp.
2006
39
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