LG | MG-3937C | LG MG-3937C Owner’s Manual

Owner's Manual
Congratulations on becoming the proud owner of an LG Microwave oven. You can now cook
almost anything in it. And that's what makes it India's first choice. In choosing it, you too have
chosen health for your family and friends. Besides, as it cooks food fast, it also gives you more
time to spend with them.
Our chefs conduct Microwave Cookery Classes to help you get started. Register for free and
learn to cook some great dishes. You'll also get some tips on maintaining and cleaning your
Now go ahead, and cook up some magic in your LG Healthwave Microwave Ovens.
Cookery Class
Class 1
Cookery Class
Class 2
Cookery Class
Class 3
Control Panel
Control Panel
Power selector
Allows selection of desired
2 Timer
permits selection of the
desired cooking time.
3 Clock
5 Start
6 Stop
The oven cannot be operated with the door open due to the safety interlocks built in the door mechanism
which switch off cooking functions when the door is opened. Operating the oven with the door open could
result in harmful exposure to microwave energy. It is important not to tamper with the door mechanism.
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 qualified service personnel.
When heating liquids, e.g. soups, sauces and beverages in your microwave oven, delayed eruptive boiling can
occur without evidence of bubbling. This could result in a sudden boil over of the hot liquid. To prevent this
possibility the following steps should be taken:
1. Avoid using straight-sided containers with narrow necks.
2. Do not overheat.
3. Stir the liquid before placing the container in the oven and again halfway through the
heating time.
4. After heating, allow to stand in the oven for a short time. Stir or shake the contents (especially feeding
bottles and baby foods) and carefully check the temperature before use.
1. Remove all packing materials and accessories.
2. Place the oven on a level surface a minimum of 85cm above the floor with at least 30cm above and 10cm rear
space to allow adequate ventilation. The side of the oven should be kept clear so there is air flow for ventilation.
The front of the oven should be at least 8cm from the edge of the surface to prevent tipping.
An exhaust outlet is located on top or side of the oven. Blocking the outlet can damage the oven.
3. Plug your oven into a standard voltage household outlet. Ensure that the electrical circuit is at least 10 amps (16
amps for models MG-3937C ) and that the oven is the only appliance on the circuit.
NOTE: • This appliance should not be used for commercial catering purposes.
The wires in the mains lead are coloured in accordance with the following code:
- Neutral
- Live
Green and Yellow - Earth
If the power cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly
qualified person in order to avoid hazard.
Important safety instructions
Read carefully and keep for future reference
WARNING: Please ensure cooking times are correctly set as over cooking may result in FIRE and
subsequent DAMAGE to the OVEN.
1 Do not attempt to tamper with, or make any adjustments or repairs to the door, control panel, safety
interlock switches or any other part of the oven.It is
hazardous for anyone to carry out any service or
repair operation which involves the removal of any
cover which gives protection against exposure to
microwave energy. Repairs should only be undertaken by a qualified service technician.
12 Before cooking, pierce the skin of potatoes, apples
or any such fruit or vegetable.
13 Do not cook eggs in their shell. Pressure will build
up inside the egg which will burst.
14 Do not attempt deep fat frying in your oven.
15 Remove the plastic wrapping from food before
cooking or defrosting. Note though that in some
cases food should be covered with plastic film, for
heating or cooking.
2 Do not operate the oven when empty. 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.
16 If the oven door or door seals are damaged, the
oven must not be operated until it has been repaired by a qualified service technician.
3 Do not use the oven for the purpose of dehumidification. It can be the cause of serious damage of
safety. (ex. Operating the microwave oven with the
wet newspapers, clothes, toys, pet or portable
electric devices, etc.)
17 If smoke is observed, switch off or disconnect the
oven from the power supply and keep the oven
door closed in order to stifle any flames.
18 When food is heated or cooked in disposable
containers of plastic, paper or other combustible
materials, check the oven frequently due to the
possibility of the food container is deteriorating.
4 Do not cook food wrapped in paper towels, unless
your cook book contains instructions, for the food
you are cooking.
5 Do not use newspaper in place of paper towels for
19 Only allow children to use the oven without supervision when adequate instructions have been given
so that the child is able to use the oven in a safe
way and understands the hazards of improper use.
6 Do not use wooden containers. They may heat-up
and char. Do not use ceramic containers which have
metallic (e.g. gold or silver) inlays. Always remove
metal twist ties. Metal objects in the oven may arc,
which can cause serious damage.
20 Liquids or other foods must not be heated in sealed
containers since they are liable to explode.
21 Do not operate the oven, if the door seals and
adjacent parts of the microwave oven are faulty,
until the oven has been repaired by a qualified
service technician.
7 Do not operate the oven with a kitchen towel, a
napkin or any other obstruction between the door
and the front edges of the oven, which may cause
microwave energy leakage.
22 Check the utensils are suitable for use in microwave
8 Do not use recycled paper products since they may
contain impurities which may cause sparks and/or
fires when used in cooking.
ovens before use.
9 Do not rinse the turntable by placing it in water just
after cooking. This may cause breakage or damage.
10 Small amounts of food require shorter cooking or
heating time. If normal times are allowed they may
overheat and burn.
11 Be certain to place the oven so the front of the door
is 8 cm or more behind the edge of the surface on
which it is placed, to avoid accidental tipping of
the appliance.
Important safety instructions
24 Only use utensils that are suitable for use in
microwave ovens.
31 The oven should be cleaned regularly and
any food deposits removed.
25 When heating food in plastic or paper
containers, keep an eye on the oven due to
the possibility of ignition.
32 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.
26 If smoke is observed, switch off or unplug
the appliance and keep the door closed in
order to stifle any flames.
33 If heating elements are provided, during use the
appliance becomes hot.Care should be taken to
avoid touching heating elements inside the
34 The appliance is not intended for use by young
children or infirm persons without supervision.
27 Microwave heating of beverages can result in
delayed eruptive boiling,therefore care must
be taken when handing the container.
28 The contents of feeding bottles and baby
food jars shall be stirred or shaken and the
temperature checked before consumption,
in order to avoid burns.
29 Eggs in their shell and whole hard-boiled eggs
should not be heated in
microwave ovens
since they may explode, even after microwave
heating has ended.
30 Details for cleaning door seals, cavities and
adjacent parts.
WARNING: If the door or door seals are damaged, the oven must not be
operated until it has been repaired by a competent person.
WARNING: It is hazardous for anyone other than a competent person to
carry out any service or repair operation that involves the
removal of a cover which gives protection against exposure to
microwave energy.
WARNING: Liquids and other foods must not be heated in sealed
containers since they are liable to explode.
WARNING: Only allow children to use the oven without supervision when
adequate instructions have been given so that the child is able
to use the oven in a safe way and understands the hazards of
improper use.
Cooking Utensils
Utensils should be checked to ensure that they are suitable for use in the microwave oven.
The following chart summarises the proper use of cooking utensils in your oven:
Cooking utensils
Heat resistant glass, glass ceramic
Ceramic, china
(Do not use china with
gold or silver trim.)
Metal cookware
Non-heat resistant glass
Microwave plastic
Plastic wrap
Paper (cup, plates, towels)
Straw, wicker and wood
Consult your cookbook, individual recipes, and
charts for correct use of cooking containers,
products, and other useful information.
1. Most glass, glass ceramic, and heat resistant
glassware utensils are excellent. Those with
metal trim should not be used in a microwave
2. Paper napkins, towels, plates, cups, cartons,
and cardboard can be used in the microwave
oven. Do not use recycled paper products
since they may contain impurities which may
cause sparks and/or fires when used in
(Consult your cookbook for correct use of
these products.)
3. Plastic dishes, cups, freezer bags, and plastic
wraps may be used in the microwave oven.
Follow the manufacturer’s instructions or the
information given in the cookbook when using
plastics in the microwave oven.
4. Metal utensils and utensils with metallic trim
should not be used in the microwave oven.
For more information on the proper use of
metal in your oven, please read the
introduction section in the cookbook. If the
use of aluminum foil, skewers, or utensils
containing metal in the oven is specified in the
recipe, allow at least 2.5cm clearance
between the metal object and the interior
oven wall. If arcing (sparks) occurs, remove
1. Heat resistant glassware, ceramic and metal
cookware can be used.
2. Paper napkins, towels, and plastics should
not be used.
• Care should be taken when removing utensils
or the glass turntable, as they may become
hot during cooking.
Other Helpful Instructions
4. Some foods should not be completely thawed
before cooking. For example, fish cooks so
quickly that it is sometimes better to begin cooking while still slightly frozen.
For best results and more enjoyable cooking,
please read these comments thoroughly.
For Best Results:
1. When determining the time for a particular food,
begin by using minimum time and checking condition occasionally. It is easy to overcook food
because microwaves cook very quickly.
5. It may be necessary to increase or decrease
the cooking time in some recipes, depending
on the starting temperature of the foods.
2. Small quantities of food, or foods with low water
content may dry out and become hard if
cooked too long.
Air from the vent may become warm during
Defrosting Frozen Foods:
There are a few foods which are not cooked long
enough in the microwave oven to brown and may
need additional colour.
Coatings such as paprika, and browning agents
such as Worcestershire sauce may be used on
chops, meat patties or chicken pieces.
Roasts, poultry, cooked for 10-15 minutes or
longer, will brown without extra additives.
1. Foods that have been frozen can be placed
directly in the oven for thawing. (Be certain to
remove any metallic ties or wraps.)
2. Defrost according to the Defrosting Tips found in
this Manual.
3. For areas of the food thawing faster than others,
cover with small pieces of aluminium foil. This
helps slow down or stop the defrosting process.
Cleaning and Care
The door and door seals should be kept clean at
all times. Use only warm, soapy water to rinse then
dry thoroughly.
Metal parts will be easier to maintain if wiped
frequently with a damp cloth.
Keep the oven interior surfaces clean and dry.
As a general rule clean after each use.
Remove any crumbs and food remains between the
door and oven using a damp cloth. This area has
to be particularly well cleaned to ensure the door
will close properly. Remove any grease splashes
with a soapy cloth then rinse and dry. Do not use
abrasives which may scratch and damage the
painted surface of the oven.
Clean with mild soap and warm water, rinse and
dry with a soft cloth. Do not use abrasive materials.
Do not spill water in the vents. If the power lead
becomes soiled wipe it with a damp cloth.
The roller rest should be removed and cleaned in
hot soapy water at least once a week to prevent
grease restricting the rotation of the wheels.
Operating Procedure
1. Open the oven door, place the food on the
turntable in the oven, and close the oven door.
2. Press stop ( 6 ) . Set the power selector ( 1 ) to
the desired power level. There are five power
levels. The power selector can be set to any
one of these positions.
3. Set the timer selector ( 2 )to the desired
cooking time. Press start ( 5 ) . The turntable
begins to rotate and cooking starts.
At the end of cooking time four short beep
sounds, and the lamp is turned off and End
will be shown in the display.
Defrosting frozen food is one of the benefits of a
microwave oven. Defrosting using a microwave
oven is much faster than in the refrigerator and
safer than at room temperature, as it does not
promote the growth of harmful bacteria.
It is important to remember that defrosting takes
longer than normal cooking. Check the food,
turning it over at least once during defrosting.
1. Press stop ( 6 ).
2. Turn the power selector ( 1 ) to set the
defrosting mode (
3. Turn the timer selector ( 2 ) clockwise
to set the time.
4. Press start ( 5 )
• Opening the door during cooking automatically
turns off the oven and stops the timer. If cooking
is to continue, close the door and press start( 5 )
- the oven will turn on and the timer will resume
Be careful when removing your food the
container will be hot!
• The turntable may rotate in either direction.
• To cancel the operation when the oven is
cooking,it is advisable to press6 stop (
• Even though the timer selector is not rotating
during cooking, the setting time is elapsed. This is
not a fault.
• During cooking, change of cooking time is
possible, but the power level can't be changed.
• After cooking is over End Reminder Beep sounds
per 1 minute for 5 minutes until the oven door is
Heating or Reheating Guide
To heat or reheat successfully in the microwave, it is important to follow several guidelines. Measure the amount of
food in order to determine the time needed to reheat. Arrange the food in a circular pattern for best results. Room
temperature food will heat faster than refrigerated food. Canned foods should be taken out of the can and placed
in a microwavable container. The food will be heated more evenly if covered with a microwavable lid or vented plastic
wrap. Remove cover carefully to prevent steam burns. Use the following chart as a guide for reheating cooked food.
Sliced meat
3 slices (0.5cm thick)
Chicken pieces
1 breast
1 leg and thigh
Fish fillet
Cook time
(at HIGH)
Special Instructions
11⁄2~21⁄2 minutes
Place sliced meat on microwavable plate.
Cover with plastic wrap and vent.
• Note: Gravy or sauce helps to keep meat juicy.
2~3 ⁄2 minutes
11⁄2~21⁄2 minutes
1~21⁄2 minutes
Place chicken pieces on microwavable plate.
Cover with plastic wrap and vent.
Place fish on microwavable plate.
Cover with plastic wrap and vent.
1 serving (300g)
41⁄2~7 minutes
Place lasagne on microwavable plate.
Cover with plastic wrap and vent.
1 cup
4 cups
11⁄2~31⁄2 minutes
5~71⁄2 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
cream or cheese
1 cup
4 cups
11⁄2~3 minutes
4~61⁄2 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
1~3 minutes
Reheat filling and bun separately.
Cook filling covered in microwavable casserole dish.
Stir once. Heat bun as directed in chart below.
Mashed potatoes
1 cup
4 cups
2~31⁄2 minutes
6~81⁄2 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
Baked beans
1 cup
2~31⁄2 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
Ravioli or pasta in sauce
1 cup
4 cups
3~4 ⁄2 minutes
8~111⁄2 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
1 cup
4 cups
11⁄2~2 minutes
4~6 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
Sandwich roll or bun
1 roll
20~35 seconds
Wrap in paper towel and place on glass tray.
1 cup
4 cups
11⁄2~3 minutes
4~6 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
1 serving (8 oz.)
2~3 minutes
COOK covered in microwavable casserole dish.
Stir once halfway through cooking.
Defrosting Tips
Defrosting meats tips & techniques
“WARNING: Do not use aluminium foil during cooking cycle.”
• You can defrost meats in their original wrapping as long as no metal is present. Remove any metal rings,
twist ties, wire or foil.
• Place meat in a shallow baking dish to catch juices.
• Defrost meats only as long as necesssary. Separate items like chops, sausages and bacon as soon as
possible. Remove defrosted portions and continue to defrost remaining pieces.
• Whole pieces of meat are ready for standing time as soon as a fork can be pushed into the centre of
the meat using moderate pressure. The centre will still be icy. Allow to stand until completely thawed.
• Defrost meat on defrost mode.
Grill Cooking Chart
Directions for grilling meat on grill
• Trim excess fat from meat. Cut fat, making sure you do not cut into the lean.
(This will stop the fat curling.)
• Arrange on the rack. Brush with melted butter or oil.
• Halfway through, turn the meat over.
Lamb chops
(2.5cm (1”) thick)
Cooking time
(in minutes)
230g x 2
Baste with oil or melted
butter. Thin items should
be placed on the grill
rack. Thick items can be
placed on to a drip
tray. Turn food over
after half the cooking
Turn frequently.
Directions for grilling fish and seafood
Place fish and seafood on the rack. Whole fish should be scored diagonally on both sides before grilling.
Brush fish and seafood with melted butter, margarine or oil before and during cooking. This helps stop the
fish drying out. Grill for times recommended in the chart. Whole fish and fish steaks should be carefully
turned over halfway through grilling time. If desired thick fillets can also be turned halfway.
Cooking time
(in minutes)
Fish fillets
1cm (1⁄2”) thick
1.5cm (3⁄4”) thick
Fish steaks
2.5cm (1”) thick
225-350g each
Allow extra time for thick
and oily fish.
Baste well during
Whole fish
Prawns uncooked
Brush with melted butter
and turn over halfway
through cooking.
Questions and Answers
Many foods build up enough internal heat to
allow the cooking process to continue, even
after the food is removed from the oven.
Standing time for joints of meat, large
vegetables and cakes is to allow the inside to
cook completely, without overcooking the outside.
Q. What’s wrong when the oven light will not
A. ■ Light bulb has blown.
■ Door is not closed.
Q. Why is steam coming out of the air exhaust
vent and/or why is water dripping from the
bottom of the door?
A. Steam is normally produced during cooking
operations. The microwave has been made
to vent this steam out of the side vent,
occasionally this steam condenses on the
door and water then drips out at the bottom
of the door. This is quite normal and safe.
Q. Why does my oven not always cook as fast
as the microwave cooking guide says?
A. Check your cooking guide again, to make
sure you’ve followed directions exactly;
and to see what might cause variations in
cooking time. Cooking guide times and heat
settings are suggestions, to help prevent
over-cooking . . . the most common problem
in getting used to a microwave oven.
Variations in the size, shape and weights and
dimensions could require longer cooking time.
Use your own judgement along with the
cooking guide suggestions to check
whether the food has been properly cooked
just as you would do with a conventional
Q. Does microwave energy pass through the
viewing screen in the door?
A. No. The metal screen reflects the energy to
the oven cavity. The holes, or ports are
made to allow light to pass; they do not let
microwave energy through.
Q. Will the microwave oven be damaged if it
operates while empty?
A. Yes. Never run it empty.
Q. Why do sparks and crackling (arcing) occur
in the oven?
A. There may be several reasons why sparks
and crackling (arcing) within cavity happens.
■ You are using dishes with metal parts or trim
(silver or gold).
■ You have left a fork or other metal utensil in
the oven.
■ You are using a large amount of metal foil.
■ You are using a metal twist-tie.
Q. Why do eggs sometimes pop?
A. When baking or poaching eggs, the yolk
may pop due to steam build-up inside the yolk
membrane. To prevent this, simply pierce the
yolk with a toothpick before cooking.
Never cook eggs witthout piercing their shells.
Q. Why is standing time recommended after the
cooking operation has been completed?
A. Standing time is very important.
With microwave cooking, the heat is in the
food, not in the oven.
Technical Specifications
Power Input
Microwave Frequency
Outside Dimensions (W x H x D mm)
Power Consumption
230 V AC, 50 Hz
800 W
2450 MHz
457 x 281 x 313
1200 W
1000 W
2150 W
• Dimensions shown are approximate.
• Because we continually strive to improve our products we may change specifications without prior notice.
Email: lgservice@lgindia.com
Visit us at www.lgindia.com
P/No: . MFL41030201
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