LG ARNU15GSJN4 User manual

www.lg.com

P/NO : MFL69485718

OWNER’S MANUAL

AIR
CONDITIONER

Please read this manual carefully before operating your set and retain it
for future reference.

WALL MOUNTED
Original instruction

Copyright © 2017 LG Electronics Inc. All Rights Reserved.

ENGLISH

Wall Mounted Type Indoor Unit Owner’s Manual

TABLE OF CONTENTS

Safety Precautions ....................3

Prior to Operation......................8

Product Introduction.................9

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

n Staple your receipt to this page in the event you need

it to prove date of purchase or for warranty issues.

Operating Instructions..............9

Maintenance and Service .......10

Before you Call for Service....13

Smart Functions ......................14

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 air conditioner is not intended for use by young
children or invalids without supervision.

• Young children should be supervised to ensure that
they do not play with the air conditioner.

• 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.

2 Indoor Unit

Safety Precautions

WARNING

CAUTION

WARNING

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be
followed.

n 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.

n Meanings of symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.

n Installation

ENGLISH

Do not use a defective
or underrated circuit
breaker. Use this
appliance on a
dedicated circuit.

• There is risk of fire or
electric shock.

Install the panel and
the cover of control
box securely.

• There is risk of fire or
electric shock.

For electrical work,
contact the dealer,
seller, a qualified
electrician, or an
Authorized Service
Center.

• Do not disassemble or
repair the product.
There is risk of fire or
electric shock.

Always install a
dedicated circuit and
breaker.

• Improper wiring or
installation may cause
fire or electric shock

Always ground the
product.

• There is risk of fire or
electric shock.

Use the correctly rated
breaker or fuse.

• There is risk of fire or
electric shock.

Owner’s Manual 3

Safety Precautions

Do not modify or
extend the power
cable.

• 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.

For installation,
always contact the
dealer or an

Do not install the
product on a defective

installation stand.
Authorized Service
Center.

• There is risk of fire,
electric shock,
explosion, or injury.

• It may cause injury,
accident, or damage to
the product.

Be sure the installation area does
not deteriorate with age.

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.

Do not turn on the
breaker or power under
condition that front
panel, cabinet, top
cover, control box cover
are removed or opened.

• Otherwise, it may cause
fire, electric shock,
explosion or death.

Use a vacuum pump or Inert
(nitrogen) gas when doing leakage
test or air purge. Do not compress
air or Oxygen and Do not use
Flammable gases. Otherwise, it
may cause fire or explosion.

• If the base collapses, the air
conditioner could fall with it, causing
property damage, product failure,
and personal injury.

4 Indoor Unit

• There is the risk of death, injury, fire
or explosion.

n Operation

Safety Precautions

ENGLISH

Take care to ensure
that power cable could
not be pulled out or
damaged during
operation.

• There is risk of fire or
electric shock.

Do not place a heater
or other appliances
near the power cable.

• There is risk of fire and
electric shock.

Do not use the
product in a tightly
closed space for a
long time.

• Oxygen deficiency
could occur.

Do not place anything
on the power cable.

• There is risk of fire or
electric shock.

Do not allow water to
run into electric parts.

• It may cause There is
risk of fire, failure of the
product, or electric
shock.

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

Do not touch(operate)
the product with wet
hands.

• There is risk of fire or
electrical shock.

Do not store or use
flammable gas or
combustibles near the
product.

• There is risk of fire or
failure of product.

If strange sounds, or
small or smoke comes
from product. Turn the
breaker off or
disconnect the power
supply cable.

• There is risk of electric
shock or fire.

Stop operation and
close the window in
storm or hurricane.
If possible, remove the
product from the
window before the
hurricane arrives.

• There is risk of property

• There is risk of physical
damage, failure of
product, or electric
shock.

Do not open the inlet
grill of the product
during operation.
(Do not touch the
electrostatic filter, if
the unit is so
equipped.)

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
electric shock.

Owner’s Manual 5