LG Electronics USA S159FZ Microwave Oven User Manual EMISSION TEST REPORT
LG Electronics USA Microwave Oven EMISSION TEST REPORT
Contents
- 1. Users Manual
 - 2. User Manual
 
User Manual

Order Number 
: GETEC-C1-17-153 
FCC Part 18 
Test Report Number 
: GETEC-E3-17-010 
Page 1 / 1 
EUT Type: Microwave Oven 
FCC ID: BEJS159FZ 
APPENDIX G 
: USER’S MANUAL 

MFL69850402_00
OWNER’S MANUAL
MICROWAVE 
OVEN
Read this owner’s manual thoroughly before operating the appliance 
and keep it handy for reference at all times.
www.lg.com
LMC1575**
Copyright © 2017 LG Electronics Inc. All Rights Reserved.

PRECAUTIONS TO AVOID POSSIBLE 
EXPOSURE TO EXCESSIVE 
MICROWAVE ENERGY...
•Do not attempt to operate this oven 
with the door open since open-door 
operation can result in harmful exposure 
to microwave energy. It is important 
not to defeat or tamper with the safety 
interlocks.
•Do not place any object between the 
oven front face and the door or allow 
soil or cleaner residue to accumulate on 
sealing surfaces.
•Do not operate the oven if it is 
damaged. 
It is particularly important that the oven 
door closes properly and that there is no 
damage to the:
(1) door (bent),
(2) hinges and latches (broken or  
loosened),
(3) door seals and sealing surfaces.
•The oven should not be adjusted or 
repaired by anyone except properly 
qualified service personnel.
Thank you for purchasing an LG microwave oven.
Please record the model number and serial number 
of this unit for future reference. We also suggest 
you record the details of your contact with LG 
Electronics U.S.A., Inc. concerning this unit.
Staple your receipt here for proof of purchase.
Model No:
Serial No:
Dealer:
Dealer Phone No:
Customer Relations 
LG Electronics U.S.A., Inc. 
Service Division Bldg. #3 
201 James Record Rd. 
Huntsville, AL 35824-0126

3
TABLE OF CONTENTS
TABLE OF CONTENTS
4  IMPORTANT SAFETY 
INSTRUCTIONS
8  PRODUCT OVERVIEW
8  Location of Model Number
8  Electrical Requirements
8  Voltage Warning
8  Placement of the Oven
8  Do Not Block Air Vents
8  Grounding Instructions
9  Radio / TV / Wireless Equipment Interference
9  Oven Specifications
10  Microwave Oven Features
10 Accessories
11  Control Panel Overview
12 MICROWAVE COOKING TIPS
12  Microwave Cookware Guide
13  Microwave-Safe Cookware
14  Microwave Cooking Tips
15 Precautions
16 OPERATION
16  Audible Signals
16 Clock
16  Interrupting Cooking
16  Child Lock
17  Kitchen Timer
17  Slide Touch Key
18  Correctly Using Slide Touch Key
18  If Slide Touch Key Doesn't Respond
18  Quick Start
18  More / Less
18  Energy Saving
19  Setting Manual Cooking Times
19  Microwave Power Levels
20  Sensor Operation Instructions
20  Sensor Cooking Guide
20  Sensor Cook
20  Sensor Reheat
20  Sensor Popcorn
21  Sensor Cook Table
22  Sensor Reheat Table
22  Popcorn Table
23 Defrost
23  Defrost Table
24  Defrosting Tips
24  Weight Conversion Table
24  Operating Tips
25 SMART DIAGNOSIS™
25  Using the Smart Diagnosis™ Function
26 MAINTENANCE
26  Caring for the Microwave Oven
27 TROUBLESHOOTING
27  Frequently Asked Questions
28  Before Calling for Service
29 WARRANTY

4IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
Read and follow all instructions when using the microwave oven to prevent the risk of fire, 
electric shock, personal injury, or damage. This guide does not cover all possible conditions 
that may occur. Always contact your service agent or manufacturer about problems that you 
do not understand.
Download this owner's manual at: http://www.lg.com
This is the safety alert symbol. This symbol alerts you to potential hazards that 
can result in property damage and/or serious bodily harm or death. 
All safety messages will follow the safety alert symbol and either the word 
WARNING or CAUTION. These words mean:
WARNING -  Indicates a hazardous situation which, if not avoided, could result 
in death or serious injury.
CAUTION  -  Indicates a hazardous situation which, if not avoided, could result 
in minor or moderate injury.
The safety instructions below will tell you how to use your oven and avoid harm to yourself 
or damage to your oven.
WARNING
•To reduce the risk of burns, electric shock, fire, injury to persons or exposure to 
excessive microwave energy when using the microwave oven, follow basic safety 
precautions, including the following.
•Read all the instructions before using the oven.
•As with any appliance, close supervision is necessary when used by children.
•Read and follow the specific PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO 
EXCESSIVE MICROWAVE ENERGY found on page 2.
•Use this appliance only for its intended use as described in the manual. 
Do not use corrosive chemicals or vapors, such as sulfide and chloride, in this 
appliance. This type of oven is specifically designed to heat, cook, or dry food. It is not 
designed for industrial or laboratory use.
•Do not store this appliance outdoors. Do not use this product near water - for example, 
near a kitchen sink, in a wet basement, near a swimming pool, or similar location.
•Do not use this oven for commercial purposes. It is made for household use only.
•When cleaning surfaces of door and oven that come together on closing the 
door, use only mild, nonabrasive soaps, or detergents applied with a sponge or 
soft cloth.
•If your oven is dropped or damaged, have it thoroughly checked by a qualified 
service technician before using it again.

5
IMPORTANT SAFETY INSTRUCTIONS
WARNING
•To reduce the risk of fire in the oven cavity:
-  Do not overcook food. Carefully attend to the microwave oven when paper, plastic 
or other combustible materials are placed inside the oven to facilitate cooking.
-  Do not use the cavity for storage purposes. 
Do not leave paper products, cooking utensils or food in the cavity when not in use.
-  Remove wire twist-ties from paper or plastic bags before placing bags in oven.
•If materials inside the oven ignite:
-  Keep oven door closed
-  Turn the oven off
-  Disconnect the power cord or shut off power at the fuse or circuit breaker 
panel.
•To avoid electric shock:
-  This appliance must be grounded. Connect only to a properly grounded outlet. See 
the electrical GROUNDING INSTRUCTIONS on page 8.
-  Do not operate this appliance if it has a damaged cord or plug, if it is not working 
properly or if it has been damaged or dropped.
-  Do not immerse the electrical cord or plug in water.
-  Keep cord away from heated surfaces.
-  Do not let cord hang over edge of table or counter.
•Take care when the door is opened to avoid injury.
•To avoid improperly cooking some foods:
-  Do not heat any type of baby bottle or baby food. Uneven heating may occur and 
possibly cause personal injury.
-  Do not heat small-necked containers, such as syrup bottles.
-  Do not deep-fat fry in the microwave oven.
-  Do not attempt home canning in the microwave oven.
-  Some products such as whole eggs and sealed containers – for example, 
closed glass jars – are able to explode and should not be heated in this oven.
•Do not cover or block any openings on the appliance.
•Do not run the oven empty.
•Install or locate this appliance only in accordance with the provided installation 
instructions.
•This appliance should be serviced only by qualified service personnel. Contact the 
nearest authorized service facility for examination, repair, or adjustment.
•Liquids, such as water, coffee, or tea can be overheated beyond the boiling point 
without appearing to be boiling due to surface tension of the liquid. Visible bubbling or 
boiling when the container is removed from the microwave oven is not always present.
THIS COULD RESULT IN VERY HOT LIQUIDS SUDDENLY BOILING OVER WHEN 
THE CONTAINER IS DISTURBED OR A SPOON OR OTHER UTENSIL IS INSERTED 
INTO THE LIQUID.
•To reduce the risk of injury to persons;
-  Do not overheat the liquid.
-  Stir the liquid both before and halfway through heating it.
-  Do not use straight-sided containers with narrow necks.
-  After heating, allow the container to stand in the microwave oven for a short time 
before removing the container.
-  Use extreme care when inserting a spoon or other utensil into the container.

6IMPORTANT SAFETY INSTRUCTIONS
•Do not use the oven for the purpose of dehumidification (for example, operating the 
microwave oven with wet newspapers, clothes, toys, electric devices, plants, soil, pets 
or any other living matter inside it). The oven must only be used for heating or cooking 
food.
-  The results of misuse can include safety risks such as fire, burns, or death due to 
electric shock.
•This appliance is not intended for use by persons (Including children) with reduced 
physical, sensory or mental capabilities, or lack of experience and knowledge, unless 
they have been given supervision or instruction concerning use of the appliance by a 
person responsible for their safety. Children should be supervised to ensure that they 
do not play with the appliance.
-  Improper use may cause damage such as a fire, electric shock or burn.
•Accessible parts may become hot during use. Young children should be kept away.
-  They may be burned.
•Children must not be allowed to play with accessories or hang down from the door or 
any part of the oven.
-  Doing so can cause serious injury and damage.
•If the door or door seals are damaged, the oven must not be operated until it has been 
repaired by a competent person.
•The appliance and its accessible parts become hot during use. Care should be taken 
to avoid touching heating elements. Children shall be kept away unless continuously 
supervised.
•During use the appliance becomes hot. Care should be taken to avoid touching heating 
elements inside the oven.
•Do not use recycled paper products.
-  They may contain impurities which may cause sparks and/or fires when used in 
cooking.
•Do not rinse trays and racks by placing them in water just after cooking. This may 
cause breakage or damage.
-  Improper use could result in damage to the oven.
•The oven should be cleaned regularly and any food deposits should be removed.
-  Failure to maintain the oven in a clean condition could lead to deterioration of the 
surface that could adversely affect the life of the appliance and possibly result in a 
hazardous situation.
•The door or the outer surface may get hot when the appliance is operating.
•Liquids heated in certain shaped containers (especially cylindrical-shaped containers) 
may become overheated. The liquid may splash out with a loud noise during or after 
heating or when adding ingredients (instant coffee. etc.), resulting in harm to the oven 
and possible injury. In all containers, for best results, stir the liquid several times before 
heating. Always stir liquid several times between reheatings.
WARNING

7
IMPORTANT SAFETY INSTRUCTIONS
FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY 
INTERFERENCE STATEMENT (U.S.A. ONLY)
This equipment generates and uses ISM frequency energy and if not installed and used 
properly, that is in strict accordance with the manufacturer's instructions, may cause 
interference to radio and television reception. It has been type tested and found to comply 
with limits for ISM Equipment pursuant to part 18 of FCC Rules, which are designed to 
provide reasonable protection against such interference in a residential installation.
However, there is no guarantee that interference will not occur in a particular installation. 
If this equipment does cause interference to radio or television reception, which can be 
determined by turning the equipment off and on, the user is encouraged to try to correct the 
interference by one or more of the following:
•Reorient the receiving antenna of the radio or television.
•Relocate the Microwave Oven with respect to the receiver.
•Move the microwave oven away from the receiver.
•Plug the microwave oven into a different outlet so that the microwave oven and the 
receiver are on different branch circuits.
The manufacturer is not responsible for any radio or TV interference caused by unauthorized 
modification to this microwave oven. It is the responsibility of the user to correct such 
interference.
WARNING
This product contains chemicals known to the State of California to cause cancer and 
birth defects or other reproductive harm. Wash hands after handling.
Read all instructions before using the appliance.
SAVE THESE INSTRUCTIONS

8PRODUCT OVERVIEW
PRODUCT OVERVIEW
Location of Model Number
To request service information or replacement parts, 
the service center requires the complete model 
number of your microwave oven. The model number 
is on the oven back as shown in the illustration below.
Model number label
Electrical Requirements
The oven is designed to operate on a Standard 120 
V/60 Hz household outlet. Be sure the circuit is at 
least 15 A or 20 A and the microwave oven is the only 
appliance on the circuit. It is not designed for 50 Hz 
or any circuit other than a 120 V/60 Hz circuit. 
No other electrical appliances or lighting circuits 
should be on this line. If in doubt, consult a licensed 
electrician.
Voltage Warning
The voltage used at the wall receptacle must be the 
same as specified on the oven name plate located 
on the back or on the side of the control panel of the 
oven. Use of a higher voltage is dangerous and may 
result in a fire or other type of accident causing oven 
damage. Low voltage will cause slow cooking. If the 
microwave oven does not perform normally in spite of 
proper voltage, remove and reinsert the plug.
Placement of the Oven
The microwave oven can be placed easily in your 
kitchen, family room, or anywhere else in your home. 
Place the oven on a flat surface such as a kitchen 
countertop or a specially designed microwave oven 
cart. Do not place oven above a gas or electric range. 
Free airflow around the oven is important. Allow at 
least 4 inches of space at the top, sides, and back of 
the oven for proper ventilation.
Do Not Block Air Vents
All air vents should be kept clear during cooking. If 
air vents are covered during oven operation the oven 
may overheat. If this happens, a sensitive thermal 
safety device automatically turns the oven off. The 
oven will be inoperable until it has cooled sufficiently.
Grounding Instructions
This appliance must be grounded. In the event of 
an electrical short circuit, grounding reduces the 
risk of electric shock by providing an escape wire 
for the electric current. This appliance is equipped 
with a cord having a grounding wire with a grounding 
plug. The plug must be plugged into an outlet that is 
properly installed and grounded.
WARNING
•Improper use of grounding can result in a 
risk of electric shock.
Consult a qualified electrician or service person if the 
grounding instructions are not completely understood, 
or if doubt exists as to whether the appliance is 
properly grounded.
1. Use of an extension cord is not recommended. If 
the power supply cord is too short, have a qualified 
electrician or service person install an outlet near 
the appliance. 
2. If it is necessary to use an extension cord, use 
only a 3-wire extension cord that has a 3-blade 
grounding plug, and a 3-slot receptacle that will 
accept the plug on the appliance. The marked rating 
of the extension cord must be equal to or greater 
than the electrical rating of the appliance.
NOTE
•A short power supply cord is provided to reduce 
the risks resulting from becoming entangled in 
or tripping over a longer cord.
•Longer cord sets or extension cords are 
available and may be used if care is exercised 
in their use.
•If a long cord or extension cord is used, (1) 
the marked electrical rating of the cord set or 
extension cord must be at least as great as 
the electrical rating of the appliance, (2) the 
extension cord must be a grounding-type 3-wire 
cord, and (3) the longer cord should not be 
draped over a counter or table where children 
could pull on it, or located where it could 
present a trip hazard.
See the separate Installation Instructions for 
directions on placing the cord properly.
Ensure proper ground 
exists before use
Keep the electrical power cord dry and do not pinch 
or crush it in any way.

9
PRODUCT OVERVIEW
Radio / TV / Wireless Equipment Interference
Operating the microwave oven near equipment—such as a radio, TV, wireless LAN, Bluetooth devices, medical 
equipment, or wireless equipment—which uses the same frequency, may cause interference. This interference 
is not an indication of a defect in the product or its operation. The product is safe to use. 
WARNING
•Do not use medical equipment near the microwave oven, as the interference could affect the medical 
equipment’s operation.
When there is interference, it may be reduced or eliminated by taking the following measures:
a. Clean the door and the sealing surfaces of the oven.
b. Reorient the receiving antenna of the radio, TV, Bluetooth, or other equipment.
c. Relocate the microwave oven in relation to the radio, TV, Bluetooth, or other equipment.
d. Move the microwave oven away from the receiver.
e. Plug the microwave oven into a different outlet so that microwave oven and receiver are on different branch 
circuits.
Oven Specifications
Model LMC1575**
Power Supply 120 V AC, 60 Hz
Rated Power Consumption 1250 W
Microwave Output Max. 1200 W*
Frequency 2450 MHz
Rated Current 10.4 A
Overall Dimensions (W x H x D) 21 7/16" x 12 1/8" x 17"
(54.4 cm x 30.8 cm x 43.2 cm)
Oven Cavity Dimensions (W x H x D) 15 9/16" x 10 5/16" x 16"
(39.5 cm x 26.2 cm x 40.6 cm)
Capacity of Oven Cavity 1.5 cu.ft (0.04 m³)
* IEC 60705 RATING STANDARD 
Specifications subject to change without prior notice.

10 PRODUCT OVERVIEW
Microwave Oven Features
Door Seal
Display WindowDisplay Window
Control PanelSafety Door Lock SystemControl Panel
* Do Not Remove  
Mica Sheet
NOTE
•Do not remove the cavity Mica Sheet (silver 
plate) inside of oven.
•The Mica Sheet  is there to protect the 
microwave components from food spatters.
WARNING
•Do not operate the oven when empty or without 
the glass tray. It is best to leave a glass of 
water in the oven when not in use. The water 
will safely absorb all microwave energy, if the 
oven is accidentally started.
Accessories
The turntable rotates in both directions to help food cook more evenly. Do not operate the microwave oven 
without the glass tray in place.
Owner's 
Manual
Glass Tray Rotating Ring Shaft Owner's Manual
NOTE
This microwave oven is designed for household use only. It is not recommended for commercial use.

11
PRODUCT OVERVIEW
Control Panel Overview
Use the control panel to select the desired cooking function quickly and easily. Simply touch a command key to 
select the desired function. For more information on these features, see the OPERATION section.
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1
 Smart Diagnosis
Hold the mouthpiece of a phone up to this icon 
when directed to by service center personnel, 
to help diagnose problems with the oven when 
calling for service.
2
 Display
The display includes a clock and shows the 
time of day, cooking time settings, and cooking 
functions selected.
3
 Sensor Cook
Touch this key to cook bacon, fresh vegetables, 
frozen entrees, frozen vegetables, oatmeal, 
potatoes, and rice.
4
 Sensor Reheat
Touch this key to reheat beverages, casseroles, 
dinner plates, pie, and pizza.
5
 Sensor Popcorn
Touch this key to pop popcorn.
6
 Defrost
Touch this key to select food type and defrost food 
by weight.
7
 Power Level
The microwave oven is equipped with 10 power 
levels for maximum flexibility and control over 
cooking. The Microwave Power Levels section 
contains suggestions for which power level to use 
when preparing various foods.
8
 Cook Time
Touch this key to manually set a desired cook 
time.
9
 Timer On/Off
Touch this key to set a kitchen timer.
10
 More / Less
Set cooking time and weight. Lengthen or shorten 
the cooking time at any point by pressing the key. 
(Not available in Defrost mode.)
11
 STOP / Clear
Touch this key to stop the oven or to clear all 
entries except time of day.
12
 START / Enter
Touch this key to start a function, accept 
selections, or resume cooking if the door was 
opened or the STOP button was pressed once.
Pressing START without setting a cook time 
activates the Quick Start feature. Each press of the 
START button adds 30 seconds to the cooking time.

12 MICROWAVE COOKING TIPS
MICROWAVE COOKING TIPS
Microwave Cookware Guide
Use Do Not Use
OVENPROOF GLASS 
(treated for high intensity heat):  
utility dishes, loaf dishes, pie plates, cake 
plates, liquid measuring cups, casseroles 
and bowls without metallic trim.
CHINA: 
bowls, cups, serving plates, and platters 
without metallic trim.
PLASTIC: 
Plastic wrap (as a cover)- lay the plastic 
wrap loosely over the dish and press it to 
the sides.
Vent plastic wrap by turning back one edge 
slightly to allow excess steam to escape. 
The dish should be deep enough so that 
the plastic wrap will not touch the food. As 
the food heats it may melt the plastic wrap 
wherever the wrap touches the food.
Use plastic dishes, cups, semi-rigid freezer 
containers and plastic bags only for 
short cooking time. Use these with care 
because the plastic may soften from 
the heat of the food.
PAPER: 
Paper towels, waxed paper, paper 
napkins, and paper plates with no metallic 
trim or design. Look for the manufacturer's 
label for use in the microwave oven.
Note: 
Do not use recycled paper products in the 
microwave oven. They sometimes contain 
impurities that cause arcing and sparking.
METAL CONTAINERS: 
Metal shields the food from microwave energy and produces 
uneven cooking. Also avoid metal skewers, thermometers, or 
foil trays. Metal containers can cause arcing, which can damage 
the microwave oven.
METAL DECORATION: 
Metal-trimmed or metal-banded dinnerware, casserole dishes, 
etc. The metal trim interferes with normal cooking and may 
damage the oven.
ALUMINUM FOIL: 
Avoid large sheets of aluminum foil because they hinder 
cooking and may cause harmful arcing. Use small pieces of 
foil to shield poultry legs and wings. Keep ALL aluminum foil at 
least 1 inch from the side walls and door of the oven.
WOOD: 
Wooden bowls and boards will dry out and may split or crack 
when you use them in the microwave oven. Baskets react in the 
same way.
TIGHTLY COVERED COOKWARE: 
Be sure to leave openings for steam to escape from covered 
containers. Pierce plastic pouches of vegetables or other food 
items before cooking. Tightly closed pouches could explode.
BROWN PAPER: 
Avoid using brown paper bags. 
They absorb too much heat and could burn.
FLAWED OR CHIPPED UTENSILS: 
Any container that is cracked, flawed, or chipped may break in 
the oven.
METAL TWIST TIES: 
Remove metal twist ties from plastic or paper bags.
They become hot and could cause a fire.

13
MICROWAVE COOKING TIPS
Microwave-Safe Cookware
Never use metal or metal trimmed cookware 
when using microwave function
Microwaves cannot penetrate metal. They will bounce 
off any metal object in the oven and cause arcing, an 
alarming phenomenon that resembles lightning. Most 
heat resistant non-metallic cookware is safe for use 
in your oven. However, some may contain materials 
that render it unsuitable as microwave cookware. If 
you have any doubts about a particular container, 
there's a simple way to find out if it can be used in the 
microwave. 
Testing Cookware before Use
Place the container in question next to a glass bowl 
filled with water inside the oven. Microwave at HIGH 
power for 1 minute. If the water heats up but the 
container remains cool to the touch, the container is 
microwave-safe.
However, if the water does not change temperature 
but the container becomes warm, microwaves are 
being absorbed by the container and it is not safe 
for use in the microwave oven. See the following list 
for tips on using common items when microwave 
cooking.
Tableware
Many dishes are microwave-safe. If in doubt consult 
the manufacturer's literature or perform the microwave 
test. Do not put plates with painted decoration in 
the oven, as the paint may contain metal and cause 
arcing.
Glassware
Glassware that is heat-resistant is microwave-safe. 
This includes all brands of oven tempered glass 
cookware.
Do not use delicate glassware, such as tumblers or 
wine glasses, as these might shatter as when heated.
Plastic Storage Containers
Use these only for quick reheating of food. Do not use 
them when cooking food for long periods or at high 
power levels, as the hot food will eventually warp or 
melt the plastic.
Paper
Paper plates and containers are convenient and 
safe to use in the microwave oven, provided that the 
cooking time is short and foods to be cooked are low 
in fat and moisture. Paper towels are also very useful 
for wrapping foods and for lining baking trays in which 
greasy foods such as bacon are cooked. In general, 
avoid colored paper products as the color may run. 
Some recycled paper products may contain impurities 
which could cause arcing or fires when used in the 
microwave.
Plastic Cooking Bags
Provided they are made specially for cooking, cooking 
bags are microwave safe. Remember to make a 
slit in the bag so that steam can escape. Never use 
ordinary plastic bags for cooking in the microwave 
oven, as they will melt and rupture.
Plastic Microwave Cookware
A variety of shapes and sizes of microwave cookware 
are available. You may be able to use items you 
already have on hand rather than investing in new 
kitchen equipment.
Pottery, Stoneware, and Ceramic
Many containers made of these materials are 
microwave-safe, but test them before use.
CAUTION
•Some items with high lead or iron content are 
not suitable for microwave cooking.
•Cookware should be checked to ensure that it 
is suitable for use in the microwave.

14 MICROWAVE COOKING TIPS
Microwave Cooking Tips
Keeping an Eye on Things
Always watch your food while it cooks. The light inside 
the microwave oven turns on automatically when 
the oven is cooking so you can monitor the cooking 
process. Directions given in recipes to elevate, stir, 
and the like should be thought of as the minimum 
steps recommended. If the food seems to be cooking 
unevenly, simply make the necessary adjustments 
you think appropriate to correct the problem.
Factors Affecting Microwave Cooking Times
Many factors affect cooking times. The temperature 
of ingredients used in a recipe makes a big difference 
in cooking times. For example, a cake made with 
ice-cold butter, milk, and eggs will take considerably 
longer to bake than one made with ingredients that 
are at room temperature. Some recipes, particularly 
those for bread, cake, and custards, recommend that 
food be removed from the oven when they are slightly 
undercooked. 
This is not a mistake. When allowed to stand, usually 
covered, these foods will continue to cook outside of 
the oven as the heat trapped within the outer portions 
of the food gradually travels inward. If the food is left 
in the oven until it is cooked all the way through, the 
outer portions will become overcooked or even burnt. 
Practice will improve your ability to estimate both 
cooking and standing times for various foods.
Density of Food
Light, porous food such as cakes and breads cook 
more quickly than heavy, dense foods such as 
roasts and casseroles. You must take care when 
microwaving porous food so that the outer edges do 
not become dry and brittle.
Height of Food
The upper portion of tall foods, particularly roasts, will 
cook more quickly than the lower portion.
Therefore, it is wise to turn tall food several times 
during cooking.
Moisture Content of Food
Because the heat generated from microwaves 
causes moisture to evaporate, relatively dry food 
such as roasts and some vegetables should either 
be sprinkled with water prior to cooking or covered to 
retain moisture.
Bone and Fat Content of Food
Bones conduct heat and fat cooks more quickly than 
meat. Care must be taken when cooking bony or fatty 
cuts of meat in order to prevent unevenly cooked or 
overcooked meat.
Quantity of Food
The number of microwaves in your oven remains 
constant regardless of how much food is being 
cooked. Therefore, the more food you place in 
the oven, the longer the required cooking time. 
Remember to decrease cooking times by at least one 
third when halving a recipe.
Shape of Food
Microwaves penetrate only about 3/4 of an inch (2 
cm) into food. The interior portion of thick foods is 
cooked as the heat generated on the outside travels 
inward. Only the outer edge of food is cooked by 
microwave energy; the rest is cooked by conduction. 
The worst possible shape for a food that is to be 
microwaved is a thick square.
The corners will burn long before the center is even 
warm. Round thin foods and ring-shaped foods cook 
most successfully in the microwave.
Covering
A cover traps heat and steam which causes food to 
cook more quickly. Use a lid or microwave cling film 
with a corner folded back to prevent splitting.
Covering with Parchment Paper
Parchment paper (not waxed paper) is microwave 
safe. Because it makes a looser cover than a lid or 
clingfilm, greaseproof paper allows the food to dry out 
slightly.
Stirring
Stirring is one of the most important of all microwaving 
techniques. In conventional cooking, food is stirred for 
the purpose of blending. Microwaved food, however, 
is stirred in order to spread and redistribute heat. 
Always stir from the outside towards the centre as the 
outside of the food heats first.
Placing Thicker Portions Facing Outward
Place thicker cuts or portions of meat, poultry, and 
fish toward the outer edge of the baking dish so they 
absorb the most microwave energy and the food 
cooks more evenly.

15
MICROWAVE COOKING TIPS
Shielding
Strips of aluminium foil (which block microwaves) 
can be placed over the corners or edges of square 
and rectangular foods to prevent those portions from 
overcooking. Never use too much foil and make sure 
the foil is secured to the dish or it may cause arcing in 
the oven especially if the foil passes too closely to the 
walls of the oven during rotation.
Elevating
Thick or dense foods can be elevated so that 
microwaves can be absorbed by the underside and 
center of the foods.
Piercing
Foods enclosed in a shell, skin or membrane are 
likely to burst in the oven unless they are pierced 
prior to cooking. Such foods include yolks and whites 
of eggs, clams, oysters, potatoes, and other whole 
vegetables and fruits.
Testing if Cooked
Microwaves cook food quickly, so test food for 
doneness frequently. Some foods are left in the 
microwave until completely cooked, but most foods, 
including meats and poultry, should be removed from 
the oven while still slightly undercooked and allowed 
to finish cooking during standing time. The internal 
temperature of foods will rise between 5 °F (3 °C) and 
15 °F (8 °C) during standing time.
Standing Time
Foods are often allowed to stand for 3 to 10 minutes 
after being removed from the oven. Usually the foods 
are covered during standing time to retain heat unless 
they are supposed to be dry in texture. Standing 
allows foods to finish cooking and also helps flavors 
blend and develop.
Precautions
•Place the front surface of the door three inches or 
more from the countertop edge to avoid accidental 
tipping of the microwave oven during normal use.
•To program the oven, make sure you touch the 
center of each pad firmly since the areas between 
the pads will not activate the oven. A tone will 
sound each time a pad is touched correctly. Don’t 
touch several pads at once.
•Do not strike the control panel with silverware, 
utensils, etc. Breakage may occur.
•Always use caution when taking cookware out 
of the oven. Some dishes absorb heat from the 
cooked food and may be hot. See Cookware Guide 
earlier in this section for more information.
•Do not rinse containers by placing them in water 
immediately after cooking. This may cause 
breakage. Also, always allow the turntable to cool 
before removing it from the oven.
•Never operate the oven when it is empty. Food 
or water should always be in the oven during 
operation to absorb the microwave energy.
•Do not use the oven to dry newspapers or clothes. 
They may catch fire.
•Use thermometers that have been approved for 
microwave oven cooking.
•The turntable must always be in place when you 
operate the oven.
•Do not use your microwave oven to cook eggs in 
the shell. Pressure can build up inside the shell, 
causing it to burst.
•There are several precautions to follow when 
microwaving popcorn:
−Do not pop popcorn, except in a microwave-safe 
container or commercial packages designed for 
microwave ovens.
−Never try to pop popcorn in a paper bag that is 
not microwave-approved.
−Overcooking may result in smoke and fire.
−Do not repop unpopped kernels.
−Do not reuse popcorn bags.
−Listen while corn pops. Stop oven when popping 
slows to 2-3 seconds between pops.
−Do not leave microwave unattended while 
popping corn.
−Follow directions on bag.

16 OPERATION
OPERATION
This section introduces you to the basics you need 
to know to operate the microwave oven. Please read 
this information before using the oven.
CAUTION
To avoid risk of personal injury or property 
damage, do not use stoneware, metal 
cookware, or metal rimmed cookware in the 
oven.
Audible Signals
Audible signals are available to guide you when 
setting and using the oven:
•A tone will sound each time you touch a key.
•A melody signals the end of a Timer countdown.
•A melody signals the end of a cooking cycle.
Clock
When the oven is plugged in for the first time or when 
power resumes after a power interruption, the clock 
defaults to the 12-hour clock mode and 12H appears 
in the display. You can set the time or switch to the 
24-hour clock mode.
Setting the Clock Mode and Time of Day
1Open the oven door. 
Press + repeatedly to toggle between the 24-
hour (24H) and 12-hour (12H) clock mode.
2Press ENTER to set the clock mode.
3To set the time of day, press + or – to select the 
desired hour. 
4Press ENTER to set the hour.
5Press + or – to select the desired minutes. 
6Press ENTER to finish setting the time of day.
Interrupting Cooking
Stop the oven during a cycle by opening the door. 
The oven stops heating and the fan stops, but the 
light stays on. To restart cooking, close the door and 
touch START.
To stop cooking and clear the remaining cook 
time, open the door and touch Clear.
Child Lock
Use this safety feature to lock the control panel and 
prevent the oven from being turned on when cleaning 
the oven or to prevent children from unsupervised 
use of the oven.
Locking the Oven
1Touch and hold STOP/Clear until Loc
appears in the display and a melody sounds. 
(approximately 3 seconds)
Unlocking the Oven
1Touch and hold STOP/Clear until Loc
disappears and a melody sounds.  
(approximately 3 seconds)
NOTE
•If set, the time of day reappears in the display 
after 1 second.
•If the oven is locked, Loc appears in the display 
when any key is touched.
•Unlock the oven to resume normal use.
NOTE
•Press and hold + or - to quickly increase or 
decrease numbers.
•You can also shut the door and use the Slide 
Touch key to set the hours and minutes.
•To reset the clock mode, you must unplug 
and reconnect the power cord.
•If you don't want the time of day to appear in the 
display, press the STOP/Clear button, after
plugging in the oven.
•To reset the time of day, press and hold Timer 
until a flashing ± appears in the display.
CAUTION
To avoid risk of personal injury or property 
damage, do not run oven while it is empty.

17
OPERATION
Kitchen Timer
The Timer function serves as an extra kitchen timer. It 
chimes when the set time runs out. It does not start or 
stop cooking.
Setting the Timer
1Open the oven door.
Press Clear.
2Press Timer once. 
10 appears in the display.
3Set the desired time by pressing + or – until the 
time appears in the display. (Press and hold + or 
shut the oven door and use the Slide Touch key 
to rapidly increase the time.)
4Press Enter to start the timer. The countdown 
appears in the display.
Canceling the Timer
1Press Timer once. 
The display returns to the time of day.
NOTE
•When the time is over a melody sounds and 
End displays. Press Clear.
Slide Touch Key
Adjust numerical settings quickly using the Slide 
Touch key on the outside of the oven door. The + and 
– keys on either side of the Slide Touch key operate 
exactly the same as the + and - keys on the inner 
control panel and can also be used to quickly adjust 
settings.
Increasing/Decreasing Numerical Settings
1Touching or pressing and holding the – button 
will decrease the amount.
2To increase the amount, touch the end of the 
slide bar nearest the – and slowly slide your 
finger to the right.
3Touching or pressing and holding the + button 
will increase the amount.
4To decrease the amount, touch the end of the 
slide bar nearest the + and slowly slide your 
finger to the left.
NOTE
•Numerical Increments:
−0~3 minutes : Time increases or decreases in 
10-second increments.
−3~20 minutes : Time increases or decreases 
in 30-second increments.
−20~90 minutes : Time increases or decreases 
in 1-minute increments.
−While the microwave is cooking, the 
remaining time increases or decreases in 
10-second increments.
•Defrost weights are increased or decreased in 
0.1-lb increments.

18 OPERATION
Correctly Using Slide Touch 
Key
1Press the + or – keys repeatedly to adjust 
numerical settings in individual increments. 
Press and hold the keys to adjust numerical 
settings quickly in the display.
Touch Touch
2Place your finger on the middle bar and swipe 
right or left to increase or decrease numerical 
settings quickly in the display. Don't forget to 
press START to select the setting in the display.
If Slide Touch Key Doesn't 
Respond
The Slide Touch Key may not respond to the 
following:
1Touching outside of the sensor area for the key.
2Using a fingernail or thumb.
3Sliding a finger across the key too quickly.
NOTE
•Do not use a tool or device other than your 
finger on the Slide Touch key. Do not wear 
rubber or disposable gloves.
•After cleaning the touch control panel with a 
wet towel, dry off any remaining moisture from 
the touch control panel.
•If the numerical value in the display stops 
changing while you are pressing the + or – key, 
lift finger and try again.
Quick Start
The Quick Start feature allows you to set 30-second 
intervals of High power cooking with each touch of 
the START button.
1Close the oven door.
Press STOP/Clear.
2Press START.
•The oven will immediately start cooking for 30 
seconds on high power.
•Press START repeatedly to extend the cook 
time  by 30 seconds every time the button is 
pressed.
•The cook time can be extended to 99 minutes 
and 59 seconds.
More / Less
By using the – or + key, manual cook settings can 
be adjusted to cook food for a longer or shorter time. 
Pressing + adds 10 seconds to the cooking time each 
time you press it. Pressing – subtracts 10 seconds 
from the cooking time each time you press it. The 
maximum cooking time possible in the manual cook 
mode is 99 min 59 seconds.
Adjusting the Cooking Time
1Close the oven door.
Press STOP/Clear.
2Press START.
3Press + or – to increase or decrease the 
remaining time by 10 seconds.
Energy Saving
When the oven is not in use, the display turns off to 
save energy, unless the time of day is set to show 
in the display.

19
OPERATION
Setting Manual Cooking 
Times
When not using the auto cooking functions, the 
cooking time and power level are set manually.
2Press Cook Time once.
3Press + or – until the desired cooking time 
appears in the display.
4Press Power Level once, P-HI appears in the 
display.
•P-HI indicates that the power level is at 100%.
5Press – to decrease the power level in 
10-percent increments, if desired.
6Close the oven door.
Press START.
•When cooking is complete, a chime sounds 
and "End" appears in the display window. 
"End" remains in the display and the chime 
repeats every minute until the door is opened, 
or any button is pressed.
NOTE
•If a power level is not selected, the oven 
defaults to 100% power.
Microwave Power Levels
This microwave oven is equipped with 10 power 
levels to give you maximum flexibility and control over 
cooking. See the table for suggested power levels for 
various foods.
Microwave Power Level Chart
Power 
Level Use
P-HI
(100 %)
•Boiling water.
•Browning ground beef.
•Making candy.
•Cooking poultry pieces, fish, & 
vegetables.
•Cooking tender cuts of meat.
P-90 •Reheating rice, pasta, & vegetables.
P-80 •Reheating prepared foods quickly.
•Reheating sandwiches.
P-70 •Cooking egg, milk and cheese dishes.
•Melting chocolate.
P-60 •Cooking veal.
•Cooking whole fish.
•Cooking puddings and custard.
P-50 •Cooking ham, whole poultry and 
lamb.
•Cooking rib roast and sirloin tip.
P-40 •Thawing meat, poultry and seafood.
P-30 •Cooking less tender cuts of meat.
•Cooking pork chops and roasts.
P-20 •Taking chill out of fruit.
•Softening butter.
P-10 •Keeping casseroles and main dishes 
warm.
•Softening butter and cream cheese.
1Open the oven door.
Press Clear. 

20 OPERATION
Sensor Operation 
Instructions
This microwave oven has sensor cooking features 
for convenient microwave cooking. It guides you, 
step by step, to reheat or cook popular food items 
automatically using preprogrammed settings.
Categories :
1. Sensor Cook
2. Sensor Reheat
3. Popcorn
•The Sensor system works by detecting the built up 
steam.
•Make sure the door remains closed.
•Opening the door or touching the STOP/Clear key 
before the steam is detected will stop the process 
and the oven.
•Before using sensor cooking, make sure the 
exterior of the reheating container and the interior 
of the oven are dry, to assure the best results.
Sensor Cooking Guide
Appropriate containers and coverings help assure 
good sensor cooking results.
•Always use microwavable containers and cover 
them with lids or vented plastic wrap.
•Never use tight-sealing plastic covers. They can 
prevent steam from escaping and cause food to 
overcook.
•Match the amount to the size of the container.  
Fill containers at least half full for best results.
•Be sure the outside of the cooking container and 
the inside of the microwave oven are dry before 
placing food in the oven. Beads of moisture turning 
into steam can mislead the sensor.
Sensor Cook
The Sensor Cook menu has preprogrammed settings 
to automatically cook certain foods. Select the correct 
category for your item using the Sensor Cook chart 
on the next page, enter the amount, then press 
START and the oven automatically cooks the item.
1Open the oven door.
Press Clear.
2Press Sensor Cook repeatedly to select a food 
category. For example, press until Sc-2 appears 
in the display to cook fresh vegetables.
3Close the oven door.
Press START.
Sensor Reheat
The Sensor Reheat menu has preprogrammed 
settings to automatically reheat certain foods. Select 
the correct category for your item using the Sensor 
Reheat chart on page 22, enter the amount, then press 
START and the oven automatically reheats the item.
1Open the oven door.
Press Clear.
2Press Sensor Reheat repeatedly to select a 
food category. For example, press until Sr-4 
appears in the display to reheat pie.
3Close the oven door.
Press START.
Sensor Popcorn
The oven has a preprogrammed function to heat one 
3.5 oz prepackaged microwave popcorn bag. For 
best results, use fresh bags of popcorn.
Example : To pop popcorn.
1Open the oven door.
Press Clear.
2Press Popcorn once. 
PoP will show in the display.
3Close the oven door.
Press START.

21
OPERATION
Sensor Cook Table
Code  Category Recommended 
Amounts Directions
Sc-1 Bacon 2 - 4 slices Place bacon slices on a microwave bacon rack for best 
results. 
(Use dinner plate lined with paper towels if rack is not 
available.)
Sc-2 Fresh Vegetable 1 - 4 cups Place in a microwaveable bowl or casserole. Add water 
according to the quantity.
•1-2 cups : add 2 tbsp water.
•3-4 cups : add 4 tbsp water.
Cover with vented plastic wrap.  
Let stand 3 minutes after cooking.
Sc-3 Frozen Entree 10 - 40 oz. Remove from outer display package. Slit cover. If not in 
microwave-safe container, place on a microwaveable plate 
and cover with vented plastic wrap. After cooking, let stand 
in microwave oven 3 minutes.
Sc-4 Frozen Vegetable 1 - 4 cups Place in a microwaveable bowl or casserole.
•1-2 cups : add 2 tbsp water.
•3-4 cups : add 4 tbsp water.
Cover with vented plastic wrap.  
Let stand 3 minutes after cooking.
Sc-5 Oatmeal 1 - 2 servings 1 serving 2 servings
Oats ½ cup (40 g) 1 cup (80 g)
Water or Milk 1 cup (230 g) 1 ½ cup (345 g)
Salt (optional) Dash 1/8 tsp.
Combine water or milk, salt and oats in large microwave-
safe bowl. 
Cover with vented plastic wrap.  
Let stand 3 minutes after cooking.
Sc-6 Potato 1 - 4 ea Pierce skin with a fork and place on paper towel. Do not 
cover. 
Let stand 5 minutes after cooking.
Sc-7 Rice ½ - 2 cups ½ cup 1 cup 1 ½ cup 2 cups
Rice ½ cup  
(96 g)
1 cup  
(192 g)
1 ½ cup 
(288 g)
2 cups 
(384 g)
Water 1 cup  
(230 g)
2 cups 
(460 g)
3 cups 
(690 g)
4 cups 
(920 g)
Add rice and water in a deep and large microwave-safe 
bowl (3 qt./3 L). 
Cover with vented plastic wrap.  
Let stand 5-10 minutes after cooking. 

22 OPERATION
Sensor Reheat Table
Code  Category Recommended 
Amounts Directions
Sr-1 Beverage  1 - 2 cups 
(240 ml per cup)
Use a mug or microwave-safe cup. Do not cover. 
Stir after reheating. 
(Be careful! The beverage will be very hot. Sometimes 
liquids heated in cylindrical containers will splash out 
unexpectedly when the cup is moved.)
Sr-2 Casserole 10 - 20 oz Place in a microwaveable bowl or casserole. 
Cover with vented plastic wrap. 
Let stand 3 minutes after heating.
Sr-3 Dinner plate 1 Place food on a plate.  
Cover with vented plastic wrap.  
Let stand 3 minutes after heating. 
Sr-4 Pie  10 - 20 oz Cut leftover pie into pieces. 
Place food on a microwave-safe dish.  
Place food in the oven. Choose the menu and weight, 
press Start.
Sr-5 Pizza  1 - 3 slices This is a reheat function for leftover pizza. Do not use to 
cook pizza. Place on paper towel on a microwave safe 
plate.
NOTE
•Do not use recycled paper products in the microwave oven. 
They sometimes contain impurities that cause arcing and sparking.
Popcorn Table
Code  Category Recommended 
Amounts Directions
Pop Popcorn 3.5 oz. Pop only one package at a time. 
For best results, use a fresh bag of popcorn. 
Place a bag of prepackaged microwave popcorn on the 
center of the glass tray.
NOTE
•If popcorn bag size is not known, follow 
manufacturers' instructions and do not use this 
feature.
•Do not use POPCORN key pad in combination 
with any other feature key pads.
•Do not attempt to reheat or cook any unpopped 
kernels.
•Do not reuse bag. Overcooking can result in an 
oven fire.
•Prepare only one bag at a time.
•Do not use popcorn popping devices in 
microwave oven with this feature.
•Do not leave microwave unattended while 
cooking popcorn.
CAUTION
Never use a brown paper bag for popping corn.
When popping prepackaged popcorn, place the bag 
carefully in the oven so it does not touch the walls as 
it rotates. Fold the ends of the bag up and toward the 
center of the bag as shown.

23
OPERATION
Defrost
The oven has 4 preset defrost cycles. 
The defrost feature provides the best defrosting 
method for frozen foods. The Defrost Table shows the 
suggested defrost cycle for various foods.
The Defrost function conveniently chimes partway 
through the defrost cycle to remind you to check, turn 
over, separate, or rearrange the food for best results.
1 MEAT
2 POULTRY
3 FISH
4 BREAD
Defrosting 1.2 Lbs of Meat
1Open the oven door.
Press Clear.
2Press Defrost once.
dEF1 appears in the display.
3Press + until display shows 1.2 lbs.
4Close the oven door.
Press START.
NOTE
•The countdown appears in the display after 
START is pressed. The oven chimes once, 
partway through the defrost cycle.
•At the chime, open the oven door and turn the 
food over. Remove any food that has thawed. 
Return the still frozen items to the oven and 
press START to complete the defrost cycle.
Defrost Table
Category Food to be Defrosted
MEAT
(dEF1)
0.1 - 6.0 lbs
Beef
Ground beef, round steak, stew 
cubes, tenderloin steak, pot roast, 
rib roast, rump roast, chuck roast, 
hamburger patties
Lamb
Chops, rolled roast
Pork
Chops, hotdogs, spareribs, 
country-style ribs, rolled roast, 
sausage
Veal
Cutlets (1 lb, ½ inch thick)
Turn food over at beep. 
After defrosting, let stand for 5 - 15 
minutes.
POULTRY
(dEF2)
0.1 - 6.0 lbs
Poultry
Whole, cut-up, breast (boneless). 
Rinse chicken cavity with tap 
water and let stand for 60 minutes 
after cooking for better results.
Cornish Hens
Whole
Turkey
Breast
Turn food over at beep. 
After defrosting , let stand for 60 
minutes.
FISH
(dEF3)
0.1 - 4.0 lbs
Fish
Fillets, whole steaks
Shellfish
Crab meat, lobster tails, shrimp, 
scallops
Turn food over at beep. 
After defrosting, let stand for 5 - 10 
minutes.
BREAD
(dEF4)
0.1 - 2.0 lbs
Sliced bread, buns, baguettes, etc. 
Separate slices and place between 
paper towels or on flat plate.
Turn food over at beep. 
After defrosting, let stand for 1 - 2 
minutes.

24 OPERATION
Defrosting Tips
•When using Auto Defrost, the weight to be entered 
is the net weight in pounds and tenths of pounds 
(the weight of the food minus the container).
•Before starting, remove the metal twist-ties which 
often come with frozen food bags, and replace 
them with strings or elastic bands.
•Open containers such as cartons before they are 
placed in the oven.
•Always slit or pierce plastic pouches or packaging.
•If food is foil wrapped, remove foil and place the 
food in a suitable container.
•Slit the skins, if any, of frozen food such as 
sausage.
•Bend plastic pouches of food to ensure even 
defrosting.
•Always underestimate defrosting time. If 
defrosted food is still icy in the center, return it to 
the microwave oven for more defrosting.
•The length of defrosting time varies according to 
how solidly the food is frozen.
•The shape of the package affects how quickly 
food will defrost. Shallow packages will defrost 
more quickly than a deep block.
•As food begins to defrost, separate the pieces 
Separated pieces defrost more easily.
•Use small pieces of aluminum foil to shield parts 
of food such as chicken wings, leg tips, fish tails, 
or areas that start to get warm. Make sure the foil 
does not touch the sides, top, or bottom of the 
oven. The foil can damage the oven lining.
•For better results, let food stand after defrosting. 
(For more information on standing time, see the 
Microwave Cooking Tips section.)
•Turn over food during defrosting or standing time 
Break apart and remove food as required.
Weight Conversion Table
Most food weights are given in pounds and ounces. 
If using pounds, food weights must be entered 
into Auto Defrost in pounds and tenths of pounds 
(decimals). 
Use the following table if necessary to convert food 
weights to decimals.
Equivalent Weight
OUNCES
1.6
3.2
4.8
6.4
8.0
9.6
11.2
12.8
14.4
16.0
DECIMAL WEIGHT
.10
.20
.30
.40
.50    One-Half Pound
.60
.70
.80
.90
1.00   One Pound
Operating Tips
•Remove fish, shellfish, meat, and poultry from 
its original wrapping paper or plastic package. 
Otherwise, the wrap will hold steam and juice close 
to the foods, which can cause the outer surface of 
the foods to cook.
•Place foods in a shallow container or in a 
microwave roasting dish to catch the drippings.
•Food should still be somewhat icy in the center 
when removed from the oven.
•The length of defrosting time varies according to 
how solidly the food is frozen.
•The shape of the package affects how quickly food 
will defrost. Shallow packages will defrost more 
quickly than a deep block.
•Depending on the shape of the food, some areas 
may defrost more quickly than others.
•For best results, shape ground meat into the form 
of a doughnut before freezing. When defrosting, 
scrape off thawed meat when the beep sounds and 
continue defrosting.

25
SMART DIAGNOSIS™
SMART DIAGNOSIS™
Using the Smart Diagnosis™ 
Function
Should you experience any problems with the oven, 
it has the capability of transmitting data via your 
telephone to the LG Customer Information Center.
1Call the LG Customer Information Center at 
1-800-243-0000 (U.S.).
2When instructed to do so by the call center 
agent, hold the mouthpiece of your phone over 
the Smart Diagnosis™ logo on the control panel.
Max.
1"
(10 mm)
NOTE
•Do not touch any other buttons.
3Open the oven door. Press and hold the Clear 
button for 8 seconds, until "5" appears in 
the display. Release the button and audible 
transmission tones start sounding.
4Keep the phone in place until the tone 
transmission has finished. The display will count 
down the time.
5Once the countdown is over and the tones have 
stopped, resume your conversation with the call 
center agent, who will then be able to assist you 
in using the information transmitted for analysis.
NOTE
•For best results, do not move the phone while 
the tones are being transmitted.
•If the call center agent is not able to get an 
accurate recording of the data, you may be 
asked to try again.

26 MAINTENANCE
MAINTENANCE
Caring for the Microwave 
Oven
Interior
Food spatters or spilled liquids stick to oven walls and 
between the seal and door surfaces. Although the 
oven interior has an antibacterial coating, it is best 
to wipe up spillovers with a damp cloth right away. 
Crumbs and spillovers will absorb microwave energy 
and lengthen cooking times and may even damage 
the oven. Use a damp cloth to wipe out crumbs that 
fall between the door and the frame. It is important to 
keep this area clean to assure a tight seal. Remove 
greasy spatters with a soapy cloth then rinse and dry. 
Do not use harsh detergent or abrasive cleaners.  
Anti-bacterial claim based on internal testing with 
e-coli and Staphylococcus bacteria, showing coating 
prevents 99.99 % of bacterial growth on the surface 
of the cavity of NeoChef.
Exterior
Disconnect the plug from the power outlet before 
cleaning the oven to eliminate the possibility of 
electric shock. Clean the outside of your oven with 
soap and water then with clean water and dry with a 
soft cloth or paper towel. To prevent damage to the 
operating parts inside the oven, the water should 
not be allowed to seep into the ventilation openings. 
To clean control panel, open the door to prevent 
the oven from accidentally starting, and wipe with a 
damp cloth followed immediately by a dry cloth. Press 
STOP after cleaning.
If steam accumulates inside or around the outside 
of the oven door, wipe the panels with a soft cloth. 
Steam or condensation buildup inside the door 
is normal if foods are heated for a long period on 
higher power levels. This is not a malfunction. The 
condensation will eventually evaporate. Try covering 
the food or varying the heating levels and time to 
reduce any condensation forming in the door. This 
may also occur when the oven is operated under 
high humidity conditions and in no way indicates a 
malfunction of the unit.
The door and door seals should be kept clean. Use 
only warm, soapy water, rinse then dry thoroughly. 
DO NOT USE ABRASIVE MATERIALS, SUCH AS 
CLEANING POWDERS OR STEEL AND PLASTIC 
PADS. 
Metal parts will be easier to maintain if wiped 
frequently with a damp cloth.
NOTE
•Abrasive cleansers, steel wool pads, gritty 
wash cloths, some paper towels, etc., can 
damage the control panel and the interior and 
exterior oven surfaces.
To clean the glass tray and rotating ring, wash in 
mild, sudsy water. 
For heavily soiled areas use a mild cleanser and 
scouring sponge. 
The glass tray and rotating ring are dishwasher safe.
Glass Tray
Rotating Ring
Shaft

27
TROUBLESHOOTING
TROUBLESHOOTING
Frequently Asked Questions
Operation
Why is the oven light not on during cooking?
Make sure the cooking time has been set and the 
START button has been pressed.
Why does steam come out of the air exhaust 
vent?
Steam is normally produced during cooking. The 
microwave oven has been designed to vent this 
steam.
Will the microwave oven be damaged if it operates 
empty?
Yes. Never operate the oven empty or without the 
glass tray.
Does microwave energy pass through the viewing 
screen in the door?
No. The metal screen bounces the energy back to 
the oven cavity. The holes (or ports) allow only light to 
pass through. They do not let microwave energy pass 
through.
Why does a tone sound when a pad on the control 
panel is touched?
The tone tells you that the setting has been entered.
Can my microwave oven be damaged if food is 
cooked for too long?
Like any other cooking appliance, it is possible to 
overcook food to the point that the food creates 
smoke and even possibly fire, and damage to the 
inside of the oven. It is always best to be near the 
oven while you are cooking.
I've plugged the oven in and it does not work 
properly. What is wrong?
The microcomputer controlling your oven may 
temporarily become scrambled and fail to function 
as programmed when you plug the oven in for the 
first time or when power resumes after a power 
interruption. Unplug the oven from the 120 V 
household outlet and then plug it back in to reset the 
microcomputer.
Why do I see light reflection around the outer 
case?
This light is from the oven light which is located 
between the oven cavity and the outer wall of the 
oven.
What are the various sounds I hear when the 
microwave oven is operating?
The clicking sound is caused by a mechanical switch 
turning the microwave oven’s magnetron ON and 
OFF. 
The heavy hum and clunk is from the change in 
power the magnetron draws as it is turned ON and 
OFF by a mechanical switch. The change in blower 
speed is from the change in line voltage caused by 
the magnetron being turned ON and OFF.
Food
Is it possible to pop popcorn in a microwave 
oven?
Yes, if using one of the two methods described below:
(1) microwave-popping devices designed specifically 
for microwave cooking
(2) prepackaged commercial microwave popcorn that 
specifies the cook time and power output needed.
Follow exact directions given by each manufacturer 
for its popcorn popping product and do not leave the 
oven unattended while the corn is being popped. If 
corn fails to pop after the suggested time, discontinue 
cooking. Overcooking could result in an oven fire.
CAUTION
Never use a brown paper bag for popping corn or 
attempt to pop leftover kernels.
Why is a standing time recommended after 
microwave cooking time is over?
Standing time allows foods to continue cooking 
evenly for a few minutes after the actual microwave 
oven cooking cycle. The amount of standing time 
depends upon the density of the foods.
Why is additional time required for cooking food 
stored in the refrigerator?
As in conventional cooking, the initial temperature of 
food affects total cooking time. You need more time to 
cook food taken out of a refrigerator than for food at 
room temperature.

28 TROUBLESHOOTING
Before Calling for Service
You can often correct operating problems yourself. If your microwave oven fails to work properly, locate the 
operating problem in the list below and try the solutions listed for each problem. 
If the microwave oven still does not work properly, contact the nearest LG Authorized Service Center. LG 
Authorized Service Centers are fully equipped to handle your service requirements.
Symptoms Possible Causes / Solutions
Oven does not start
•Plug in power cord.
•Close oven door.
•Set cooking time.
Arcing or Sparking  
•Cookware is not microwave safe. When in doubt, test cookware before use.
•Do not operate oven while empty.
Incorrect time of day  
•Possible power interruption. See Clock section to reset time of day.
Unevenly Cooked 
Foods
•Test cookware to make sure it is microwave safe.
•Do not cook without the glass tray.
•Turn or stir food while cooking.
•Defrost food completely before cooking.
•Use correct cook time and power level.
Overcooked Foods  
•Change cook time or power level.
Undercooked Foods
•Test that cookware is microwave safe.
•Defrost food completely before cooking.
•Change cook time or power level.
•Make sure ventilation ports are not blocked.
Improper Defrosting
•Test that cookware is microwave safe.
•Change defrost time or weight.
•Turn or stir food during defrost cycle.

29
WARRANTY
WARRANTY (USA)
WARRANTY: Should your LG Microwave fail due to a defect in materials or workmanship under normal home 
use, during the warranty period set forth below, LG will at its option repair or replace the product. This limited 
warranty is valid only to the original retail purchaser of the product and applies only when purchased and used 
within the United States including U.S. Territories. Proof of original retail purchase is required to obtain warranty 
service under this limited warranty.
Warranty Period HOW SERVICE IS HANDLED
LABOR: One Year from the Date of Purchase*.
PARTS (except as listed below):  One Year from the 
Date of Purchase*.
MAGNETRON:  Ten Years from the Date of 
Purchase*.
Replacement Units and Repair Parts are warranted 
for the remaining portion of the original unit's 
warranty period.
* Retain your sales receipt to prove the date of 
purchase. A copy of your sales receipt must be 
submitted at the time warranty service is provided.
Please call 1-800-243-0000 and choose the 
appropriate option. (Phones are answered 24 hours 
a day, 365 days per year.) Please have the product 
type (Microwave) and your ZIP code ready.
Or visit our website at: www.lg.com
THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING WITHOUT 
LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 
TO THE EXTENT ANY IMPLIED WARRANTY IS REQUIRED BY LAW, IT IS LIMITED IN DURATION TO 
THE EXPRESS WARRANTY PERIOD ABOVE. SIGNATURE KITCHEN SUITE WILL NOT BE LIABLE FOR 
ANY INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY NATURE, 
INCLUDING WITHOUT LIMITATION, LOST REVENUES OR PROFITS, OR ANY OTHER DAMAGE WHETHER 
BASED IN CONTRACT, TORT, OR OTHERWISE.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how 
long an implied warranty lasts, so the above exclusion or limitation may not apply to you. This warranty gives you 
specific legal rights and you may also have other rights that vary from state to state.
THIS LIMITED WARRANTY DOES NOT APPLY TO:
•Service trips to deliver, pick up, or install or repair the product; instruction to the customer on operation of 
Service trips to your home to deliver, pick up, and/or install the product, instruct, or replace house fuses or 
correct wiring, or correction of unauthorized repairs.
•Damages or operating problems that result from misuse, abuse, operation outside environmental specifications 
or contrary to the requirements of precautions in the Operating Guide, accident, vermin, fire, flood, improper 
installation, acts of God, unauthorized modification or alteration, incorrect electrical current or voltage, or 
commercial use, or use for other than intended purpose.
The cost of repair or replacement under these excluded circumstances shall be borne by the consumer.
For complete warranty details and customer assistance, please call or visit our website:
Call 1-800-243-0000 (24 hours a day, 365 days a year) and select the appropriate option from the menu, or visit 
our website at http://www.lg.com
Write your warranty information below
Product Registration Information:  _______________________________________________________________________
Model:  ____________________________________________________________________________________________
Serial Number: ______________________________________________________________________________________
Date of Purchase:  ___________________________________________________________________________________

30 MEMO
MEMO 

31
MEMO
MEMO

LG Customer Information Center
Register your product Online!
www.lg.com
1-800-243-0000
USA
Printed in China