LG AS-H126URM0 Owner’s Manual
LG
Room
Air
Conditioner
OWNER'S
MANUAL
LG
MODELS:
SU/SZ/S3
Chassis
IMPORTANT
?
Please
read
this
owner's
manual
carefully
and
thoroughly
before
installing
and
operating
your
room
air
conditioner.
?
Please
retain
this
owner's
manual
for
future
reference
after
reading
it
thoroughly.
website
http://www.lgservice.com
2
Room
Air
Conditioner
Room
Air
Conditioner
Owner's
Manual
TABLE
OF
CONTENTS
FOR
YOUR
RECORDS
Write the
model and
serial
numbers
here:
Model
#
Serial
#
You
can
find
them
on
a
label
on
the side
of
each
unit.
Dealer's
Name
Date
Purchased
Staple
your
receipt
to
this
page
in
the
event
you
need
it
to
prove
date
of
purchase
or
for
warranty
issues.
READ
THIS
MANUAL
Inside
you
will
find
many
helpful
hints
on
how
to
use
and
maintain
your
air
conditioner
properly.
Just
a
little
preventive
care
on
your
part
can
save
you
a
great
deal
of
time
and
money
over
the
life
of
your
air
conditioner.
You'll find
many
answers
to
common
problems
in
the
chart
of
troubleshooting
tips.
If
you
review
our
chart
of
Troubleshooting
Tips
first,
you
may
not
need
to
call
for
service
at
all.
PRECAUTION
?
Contact
the
authorized
service
technician
for
repair
or
maintenance
of
this
unit.
?
Contact
the
installer
for
installation
of
this
unit.
?
The
appliance
is
not
intended
for
use
by
young
children
or
infirm
persons
without
supervision.
?
Young
children
should be
supervised
to
ensure
that
they
do
not
play
with
appliance.
?
When
the
power
cord
is
to
be
replaced,
replacement
work
shall
be
performed
by
authorized
personnel
only
using
only
genuine
replacement
parts.
?
Installation
work
must
be
performed
in
accordance
with
the
National
Electric
Code
by
qualified
and
authorized
personnel
only.
?
if
the
appliance
is
supplied
from
a
cord
extension
set
or
an
electrical
portable
outlet
device,
the
cord
extension
set
on
electrical
portable
outlet
device
must
be
positioned
so
that
it
is
not
subject
to
splashing
or
ingress
of
moisture.
Safety
Precautions.........................3
Prior
to
Operation
..........................9
Introduction
..................................10
Electrical
Safety
...........................11
Operating
Instructions.................12
Maintenance
and
Service
............26
Owner's
Manual
3
Safety
Precautions
Safety
Precautions
To
prevent
the
injury
of
the
user
or
other
people
and
property
damage,
the
following
instructions
must
be
followed.
Incorrect
operation
due
to
ignoring
instruction
will
cause
harm
or
damage.
The
seriousness
is
classified
by
the
following
indications.
This
symbol
indicates
the
possibility
of
death
or
serious
injury.
This
symbol
indicates
the
possibility
of
injury
or
damage
to
properties
only.
The
meanings
of
the
symbols
used
in
this
manual
are
as
shown
below.
Be
sure
not
to
do.
Be
sure
to
follow
the
instruction.
Installation
Do
not
use
damaged
power
cords,
plugs,
or
a
loose
socket.
?
There
is
risk
of
fire
or
electric
shock.
For
electrical
work,
contact
the
dealer,
seller,
a
qualified
electrician,
or
an
Authorized
Service
Center.
?
There
is
risk
of
fire
or
electric
shock.
Always
use
the
power
plug
and
socket
with
the
ground
terminal.
?
There
is
risk
of
electric
shock.
Install
the
panel
and
the
cover
of
control
box
securely.
?
There
is
risk
of
fire
or
electric
shock.
Do
not
modify
or
extend
the
power
cord.
?
There
is
risk
of
fire
or
electric
shock.
Do
not
install,
remove,
or
re-install
the
unit
by
yourself
(customer).
?
There
is
risk
of
fire,
electric
shock,
explosion,
or
injury.
4
Room
Air
Conditioner
Safety
Precautions
Be
cautious
when
unpacking
and
installing
the
product.
?
Sharp
edges
could
cause
injury.
Be
especially
careful
of
the
case
edges
and
the
fins
on
the
condenser
and
evaporator.
For
installation,
always
contact
the
dealer
or
an
Authorized
Service
Center.
?
There
is
risk
of
fire,
electric
shock,
explosion,
or
injury.
Do
not
install
the
product
on
a
defective
installation
stand.
?
It
may
cause
injury,
accident,
or
damage
to
the
product.
Be
sure
the
installation
area
does
not
deteriorate
with
age.
?
If
the
base
collapses,
the
air
conditioner
could
fall
with
it,
causing
property
damage,
product
failure,
and
personal
injury.
Do
not
let
the
air
conditioner
run
for
a
long
time
when
the
humidity
is
very
high
and
a
door
or
a
window
is
left
open.
?
Moisture
may
condense
and
wet
or
damage
furnishings.
Take
care
to
ensure
that
power
cords
could
not
be
pulled
out
or
damaged
during
operation.
?
There
is
risk
of
fire
or
electrical
shock.
Do
not
place
anything
on
the
power
cord.
?
There
is
risk
of
fire
or
electric
shock.
Do
not
turn
the
air-conditioner
ON
or
OFF
by
plugging
or
unplugging
the
power
plug.
?
There
is
risk
of
fire
or
electrical
shock.
Operation
Owner's
Manual
5
Safety
Precautions
Use
a
dedicated
outlet
for
this
appliance.
?
There
is
risk
of
fire
or
electrical
shock.
Grasp
the
plug
to
remove
the
cord
from
the
outlet.
Do
not
touch
it
with
wet
hands.
?
There
is
risk
of
fire
or
electrical
shock.
Do
not
place
a
heater
or
other
appliances
near
the
power
cable.
?
There
is
risk
of
fire
and
electric
shock.
Do
not
allow
water
to
run
into
electric
part.
?
There
is
risk
of
fire
or
failure
of
the
product
or
electric
shock.
Do
not
store
or
use
flammable
gas
or
combustibles
near
the
air
conditioner.
?
There
is
risk
of
fire
or
failure
of
product.
Do
not
use
the
product
in
a
tightly
closed
space
for
a
long
time.
?
Oxygen
deficiency
could
occur.
When
flammable
gas
leaks,
turn
off
the
gas
and
open
a
window
for
ventilation
before
turn
the
product
on.
DO
NOT
use
the
telephone
or
turn
switches
on
or
off.
?
There
is
risk
of
explosion
or
fire.
Unplug
the
unit
if
strange
sounds,
odors,
or
smoke
comes
from
it.
?
There
is
risk
of
electrical
shock
or
fire
Stop
operation
and
close
the
window
in
storm
or
hurricane.
If
possible,
remove
the
air
conditioner
from
the
window
before
the
hurricane
arrives.
?
There
is
risk
of
property
damage,
failure
of
product,
or
electric
shock.
Wax
Thinner
6
Room
Air
Conditioner
Safety
Precautions
Always
check
for
gas
(refrigerant)
leakage
after
installation
or
repair
of
product.
?
Low
refrigerant
levels
may
cause
failure
of
product.
Install
the
drain
hose
to
ensure
that
water
is
drained
away
properly.
?
A
bad
connection
may
cause
water
leakage.
Keep
level
even
when
installing
the
product.
?
To
avoid
vibration
or
water
leakage.
Installation
90˚
Unplug
the
appliance
before
performing
cleaning
or
maintenance.
?
There
is
risk
of
electrical
shock.
When
the
product
is
not
be
used
for
a
long
time,
disconnect
the
power
supply
plug
or
turn
off
the
breaker.
?
There
is
risk
of
product
damage
or
failure,
or
unintended
operation.
Take
care
to
ensure
that
nobody
could
step
on
or
fall
onto
the
outdoor
unit.
?
This
could
result
in
personal
injury
and
product
damage.
Do
not
open
the
inlet
grill
of
the
product
during
operation.
(Do
not
touch
the
electrostatic
filter,
if
the
unit
is
so
equipped.)
?
There
is
risk
of
physical
injury,
electric
shock,
or
product
failure.
When
the
product
is
soaked
(flooded
or
submerged),
contact
an
Authorized
Service
Center.
?
There
is
risk
of
fire
or
eletric
shock.
Ventilate
the
product
from
time
to
time
when
operating
it
together
with
a
stove,
etc.
?
There
is
risk
of
fire
or
electrical
shock.
Owner's
Manual
7
Safety
Precautions
Do
not
install
the
product
where
the
noise
or
hot
air
from
the
outdoor
unit
could
damage
the
neighborhoods.
?
It
may
cause
a
problem
for
your
neighbors.
Use
two
or
more
people
to
lift
and
transport
the
air
conditioner.
?
Avoid
personal
injury.
Do
not
install
the
product
where
it
will
be
exposed
to
sea
wind
(salt
spray)
directly.
?
It
may
cause
corrosion
on
the
product.
Corrosion,
particularly
on
the
condenser
and
evaporator
fins,
could
cause
product
malfunction
or
inefficient
operation.
Do
not
direct
airflow
at
room
occupants.
(Don't
sit
in
the
draft.)
?
This
could
damage
your
health.
Do
not
use
the
product
for
special
purposes,
such
as
preserving
foods,
works
of
art,
etc.
It
is
a
consumer
air
conditioner,
not
a
precision
refrigeration
system.
?
There
is
risk
of
damage
or
loss
of
property.
Do
not
block
the
inlet
or
outlet
of
air
flow.
?
It
may
cause
product
failure.
Use
a
soft
cloth
to
clean.
Do
not
use
harsh
detergents,
solvents,
etc.
?
There
is
risk
of
fire,
electric
shock,
or
damage
to
the
plastic
parts
of
the
product.
Do
not
touch
the
metal
parts
of
the
product
when
removing
the
air
filter.
They
are
very
sharp!
?
There
is
risk
of
personal
injury.
Do
not
step
on
or
put
anyting
on
the
product.
(outdoor
units)
?
There
is
risk
of
personal
injury
and
failure
of
product.
Operation
8
Room
Air
Conditioner
Safety
Precautions
Do
not
recharge
or
disassemble
the
batteries.
Do
not
dispose
of
batteries
in
a
fire.
?
They
may
burn
or
explode.
If
the
liquid
from
the
batteries
gets
onto
your
skin
or
clothes,
wash
it
well
with
clean
water.
Do
not
use
the
remote
if
the
batteries
have
leaked.
?
The
chemicals
in
batteries
could
cause
burns
or
other
health
hazards.
Always
insert
the
filter
securely.
Clean
the
filter
every
two
weeks
or
more
often
if
necessary.
?
A
dirty
filter
reduces
the
efficiency
of
the
air
conditioner
and
could
cause
product
malfunction
or
damage.
Do
not
insert
hands
or
other
objects
through
the
air
inlet
or
outlet
while
the
air
conditioner
is
plugged
in.
?
There
are
sharp
and
moving
parts
that
could
cause
personal
injury.
Do
not
drink
the
water
drained
from
the
unit.
?
It
is
not
sanitary
and
could
cause
serious
health
issues.
Disuse
Use
a
firm
stool
or
ladder
when
cleaning
or
maintaining
the
air
conditioner.
?
Be
careful
and
avoid
personal
injury.
Replace
the
all
batteries
in
the
remote
control
with
new
ones
of
the
same
type.
Do
not
mix
old
and
new
batteries
or
different
types
of
batteries.
?
There
is
risk
of
fire
or
explosion
Owner's
Manual
9
Prior
to
Operation
Prior
to
Operation
1.
Contact
an
installation
specialist
for
installation.
2.
Plug
in
the
power
plug
properly.
3.
Use
a
dedicated
circuit.
4.
Do
not
use
an
extension
cord.
5.
Do
not
start/stop
operation
by
plugging/unplugging
the
power
cord.
6.
If
the
cord/plug
is
damaged,
replace
it
with
only
an
authorized
replacement
part.
1.
Being
exposed
to
direct
airflow
for
a
long
time
may
be
hazardous
to
your
health.
Do
not
expose
occupants,
pets,
or
plants
to
direct
airflow
for
a
long
time.
2.
Due
to
the
possibility
of
oxygen
deficiency,
ventilate
the
room
when
using
the
appliance
together
with
stoves
or
other
heating
devices.
3.
Do
not
use
this
air
conditioner
for
non-specified
special
purpose
(e.g.
preserving
precision
devices,
food,
pets,
plants,
or
art
objects).
Such
use
may
damage
your
properties.
1.
Do
not
touch
the
metal
parts
of
the
unit
when
removing
the
filter.
Injury
can
occur.
2.
Do
not
use
water
to
clean
inside
the
air
conditioner.
Exposure
to
water
can
destroy
the
insulation,
leading
to
electric
shock.
3.
When
cleaning
the
unit,
first
make
sure
that
the
power
and
breaker
are
turned
off.
The
fan
rotates
at
a
very
high
speed
during
operation.
There
is
a
possibility
of
injury
if
the
unit's
power
is
triggered
while
cleaning
inner
parts
of
the
unit.
For
repair
and
maintenance,
contact
your
authorized
service
dealer.
Preparing
for
Operation
Usage
Cleaning
and
Maintenance
Service
OPERATING
TEMPERATURE(°C)COOLING
MODE
INDOOR
OUTDOOR
MAX.
MIN.
MAX.
MIN.
32°C2
1
°C4
3
°C2
1
°C
HEATING
MODE
INDOOR
OUTDOOR
MAX.
MIN.
MAX.
MIN.
27°C2
0
°C2
4
°C1
°C
10
Room
Air
Conditioner
Introduction
Introduction
This
symbol
alerts
you
to
the
risk
of
electric
shock.
This
symbol
alerts
you
to
hazards
that
may
cause
harm
to
the
air
conditioner.
This
symbol
indicates
special
notes.
NOTICE
Features
Symbols
used
in
this
Manual
Signal
Receptor
Front
Panel
Air
Discharge
Power
Cord
Power
button
NEO
Plasma
Filter
Air
Inlet
Air
Filter
Air
Intake
Vents
Air
Outlet
Vents
Connecting
Wires
Piping
Drain
Hose
Base
Plate
(Side)
(Rear)
Air outlet
vents
Air
intake
vents
Piping
Indoor
Outdoor
WARNING:
This
appliance
should
be
installed
in
accordance
with
national
wiring
regulations.
This
guide
acts
as
a
guide
to
help
to
explain
product
features.
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