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Room
Air
Conditioner
Maintenance
and
Service
24
The
air
conditioner
may
be
operating
abnormallywhen:
Problem
The
air
conditioner
is
unplugged.
The
fuse
is
blown/circuit
breaker
is
tripped.
Power
failure.
Airflow
is
restricted.
The
thermostat
may
not
be
set
high
enough.
The
air
filter
is
dirty.
The
room
may
have
been
hot.
Cold
air
is
escaping.
Cooling
coils
have
iced
up.
Ice
blocks
the
air
flow
and
stops
the
air
conditioner
from
cooling
the
room.
Air
conditioner
does
not
start
Air
conditioner
does
not
cool
as
it
should
Air
conditioner
freezing
up
Make
sure
the
air
conditioner
plug
is
pushed
completely
into
the
outlet.
Check
the
house
fuse/circuit
breaker
box
and
replace
the
fuse
or
reset
the
breaker.
Make
sure
there
are
no
curtains,
blinds,
or
furniture
blocking
the
front
of
the
air
conditioner.
Turn
the
knob
to
a
higher
number
.
The
highest
setting
provides
maximum
cooling.
Clean
the
filter
at
least
every
2
weeks.
See
the
care
and
Maintenance
section.
When
the
air
conditioner
is
first
turned
on,
you
need
to
allow
time
for
the
room
to
cool
down.
Check
for
open
furnace
floor
registers
and
cold
air
returns.
See
Air
Conditioner
Freezing
Up
below.
Set
the
mode
control
at
High
Fan
or
High
Cool
with
thermostat
at
1
or
2.
What
To
Do
Possible
Causes
*
You
can
refer
to
the
Energy
Star
program
in
detail
at
www.energystar.gov.
Troubleshooting
Press
the
RESET
button
located
on
the
power
cord
plug.
If
the
RESET
button
will
not
stay
engaged,
discontinue
use
of
the
air
conditioner
and
contact
a
qualified
service
technician.
The
current
interrupter
device
is
tripped.
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