LG WCES6428F User manual

OWNER'S MANUAL
COMBINATION
WALL OVEN
Read this owner's manual thoroughly before operating the
appliance and keep it handy for reference at all times.
ENGLISH
WCES6428F
MFL70581904
Rev.00_120321
www.lg.com
Copyright © 2021 LG Electronics Inc. All Rights Reserved.
us_main.book.book Page 1 Friday, December 3, 2021 2:25 PM

TABLE OF CONTENTS
2
4 IMPORTANT SAFETY
INSTRUCTIONS
4 READ ALL INSTRUCTIONS BEFORE USE
4 Precautions to Avoid Possible Exposure to
Excessive Microwave Energy
4 Safety Messages
4 WARNING
4 Technical Safety
6 Installation
6 Operation
7 Maintenance
7RiskofFireandFlammable Materials
8MicrowaveOven
8 Radio/TV/Wireless Equipment Interference
8 Federal Communications Commission
Radio Frequency Interference Statement
(U.S.A. Only)
9CAUTION
9 Operation
9 Maintenance
10 PRODUCT OVERVIEW
10 Product Features
10 Exterior / Interior
10 Accessories
12 OPERATION
12 Operating Control Panel
12 Control Panel Features
13 Energy Saving Tips
13 Changing Settings
13 Getting Started
13 Settings
14 Microwave Quick Start
14 Lockout
14 Date & Time
14 Clock Themes
15 Sabbath Mode
15 Wi-Fi
15 Remote Start
15 Brightness
16 Display
16 Convection Auto Conversion
16 Language Selection
16 Volume
16 Preheat Alarm Light
17 Temperature Adjustment
17 Temperature Units
17 Smart Diagnosis™
17 Program Update
17 Demo Mode
18 Factory Data Reset
18 Open Source License
18 Oven Cooling
18 Timer
20 Operating the Upper Microwave Oven
20 Before Using
20 Microwave Cookware Guide
21 Cooking Tips
22 Microwave Power Levels
23 Microwave Mode
23 Convection Bake Mode
24 Broil Mode
24 Popcorn Mode
25 Defrost Mode
26 Speed Cook Mode
26 Sensor Cook Mode
28 Microwave Quick Start Mode
28 Auto Cook Mode
30 Soften Mode
31 Melt Mode
31 Warm Mode
32 Proof Mode
33 Operating the Lower Oven
33 Before Using the Oven
33 Using Standard Oven Racks
33 Using Gliding Oven Racks
34 Instaview
34 Convection Bake and Roast Mode
35 Bake Mode
36 Recommended Baking Guide
37 Broil Mode
38 Recommended Broiling Guide
40 Warm Mode
41 Proof Mode
41 Air Fry
43 Recommended Air Frying Guide
us_main.book.book Page 2 Friday, December 3, 2021 2:25 PM

3
44 Probe Mode
45 Recommended Probe Guide
47 Favorite Mode
48 Auto Cook Mode
49 Auto Cook Guide
52 Steam Function
53 Steam Bake Mode
54 Sous Vide
54 Sous Vide Cooking Guide
55 Remote Start Mode
56 SMART FUNCTIONS
56 LG ThinQ Application
56 LG ThinQ Application Features
56 Before Using LG ThinQ Application
57 Installing the LG ThinQ Application
57 Connecting to Wi-Fi
57 Wireless LAN Module Specifications
57 FCC Notice
58 Open Source Software Notice Information
58 Smart DiagnosisTM Feature
58 Using LG ThinQ to Diagnose Issues
58 Using Audible Diagnosis to Diagnose
Issues
59 MAINTENANCE
59 Cleaning
59 General Cleaning Tips
59 Exterior
60 EasyClean
62 Self Clean (Lower Oven)
65 Cleaning the Steam Feeder Tank
65 Cleaning Scale on Lower Oven Bottom
66 Drying the Lower Oven Interior
66 Using Evaporation Function (Lower Oven)
66 Periodic Maintenance
66 Changing the Oven Light
68 TROUBLESHOOTING
68 FAQs
68 Frequently Asked Questions
72 Before Calling for Service
72 Cooking
74 Parts & Features
75 Noises
76 Wi-Fi
77 LIMITED WARRANTY
77 USA
77 TERMS AND CONDITIONS
77 THIS LIMITED WARRANTY DOES NOT
COVER
78 PROCEDURE FOR RESOLVING DISPUTES
us_main.book.book Page 3 Friday, December 3, 2021 2:25 PM

4IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE
Precautions to Avoid Possible Exposure to Excessive Microwave Energy
(a) 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.
(b) Do not place any object between the oven front face and the door or allow soil or cleaner residue to
accumulate on sealing surfaces.
(c) Do not operate the oven if it is damaged. It is particularly important that the oven door close 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.
(d) The oven should not be adjusted or repaired by anyone except properly qualified service personnel.
Safety Messages
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always read and
follow all safety messages.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury,
and tell you what may happen if the instructions are not followed.
WARNING
WARNING
• To reduce the risk of explosion, fire, death, electric shock, injury or scalding to persons when using this
product, follow basic precautions, including the following:
Technical Safety
• To reduce the risk of burns, electric shock, fire, injury to persons or exposure to excessive microwave
energy when using the microwave oven, read all instructions before using the appliance.
• 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.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or injure you and others. All safety messages
will follow the safety alert symbol and either the word WARNING or CAUTION.
These words mean:
WARNING
You may be killed or seriously injured if you do not follow instructions.
CAUTION
You may be injured or cause damage to the product if you do not follow instructions.
us_main.book.book Page 4 Friday, December 3, 2021 2:25 PM

5IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
• 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. As with any appliance, close supervision is
necessary when used by children.
• Read and follow the Precautions to Avoid Possible Exposure to Excessive Microwave Energy found
on page 4.
• This appliance must be grounded. Connect only to a properly grounded outlet. See the Electrical
Requirements section.
• Install or locate this appliance only in accordance with the provided installation instructions.
• Some products such as whole eggs and sealed containers – for example, closed glass jars – can explode
and should not be heated in this oven.
• 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.
• This appliance should be serviced only by qualified service personnel. Contact the nearest authorized
service facility for examination, repair, or adjustment.
• Do not cover or block any openings on the appliance.
• 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.
• To avoid electric shock:
- 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.
• 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.
• 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 and turn the oven off.
- Disconnect the power cord or shut off power at the fuse or circuit breaker panel.
• 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. Use extreme care when inserting a spoon or
other utensil into the container.
- After heating, allow the container to stand in the microwave oven for a short time before removing the
container.
• Do not mount unit over or near any portion of a heating or cooking appliance.
• Do not mount over a sink.
• Do not store anything directly on top of the appliance surface when the appliance is in operation.
us_main.book.book Page 5 Friday, December 3, 2021 2:25 PM

6IMPORTANT SAFETY INSTRUCTIONS
Installation
• Never allow anyone to climb, sit, stand or hang on the oven door. Injury might result from contact with
hot food or the oven itself.
• Do not line the oven walls, racks, bottom, or any other part of the oven with aluminum foil or any other
material. Doing so will disrupt heat distribution, produce poor baking results and cause permanent
damage to the oven interior (aluminum foil will melt to the interior surface of the oven).
• Do not use aluminum foil or any other material to line the oven bottom. Improper installation of oven
liners may result in a risk of electric shock or fire.
• Make sure your appliance is properly installed and grounded by a qualified installer, according to the
installation instructions. Any adjustment and service should be performed only by qualified installers or
service technicians.
• Be certain that all packing materials are removed from the appliance before operating. Keep plastic,
clothes, paper, and other flammable materials away from parts of the appliance that may become hot.
• The electrical power must be shut off while the electrical connections are being made.
• Improper connection of aluminum house wiring to copper leads can result in an electrical hazard or fire.
Use only connectors designed for joining copper to aluminum and follow the manufacturer’s
recommended procedure closely.
Operation
• DO NOT TOUCH HEATING ELEMENTS OR INTERIOR SURFACES OF OVEN. Heating elements may be hot
even though they are dark in color. Interior surfaces of an oven become hot enough to cause burns.
During and after use, do not touch or let clothing or other flammable materials contact heating elements
or interior surfaces of oven until they have had sufficient time to cool. Other surfaces, such as oven vent
openings and surfaces near these openings, oven doors, and windows of oven doors, also get hot and
may cause burns if not allowed to cool.
• Use care when opening door. The hot air and steam that escape can cause burns to hands, face and
eyes. Let hot air or steam escape from the oven before removing or replacing food in the oven.
• Do not use plastic to cover food. Use foil or oven-safe lids only.
• Never attempt to dry a pet in the oven.
• Never use your appliance for warming or heating the room.
• Always use pot holders or oven mitts when removing food from the oven or the surface element.
Cookware will be hot. Use only dry pot holders. Moist or damp pot holders on hot surfaces may result in
burns from steam. Do not let the pot holder touch hot heating elements. Do not use a towel or other
bulky cloth to remove food.
• Do not heat unopened food containers. Pressure in the containers may cause them to burst which may
result in injury.
• Do not allow aluminum foil or the temperature probe to contact heating elements.
• Do not touch the oven racks while they are hot.
• If a rack must be moved while the oven is hot, do not let the pot holder contact the hot heating element
in the oven.
• Pull the oven rack to the stop-lock position when loading and unloading food from the oven. This helps
prevent burns caused by touching hot surfaces of the door and oven walls.
• Do not use the oven if a heating element develops a glowing spot during use or shows other signs of
damage. A glowing spot indicates the heating element may fail and present a potential burn, fire, or
shock hazard. Turn the oven off immediately and have the heating element replaced by a qualified
service technician.
• Never allow children to remain unsupervised near the oven.
• DO NOT block the oven vent during operation. This can damage the electric parts of the oven. Air must
be able to move freely. The bottom vent trim should be properly assembled on the front bottom of oven
before installing the oven door.
us_main.book.book Page 6 Friday, December 3, 2021 2:25 PM

7IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
• Do not put large, heavy items such as whole turkeys on the open oven door.
• Take care when the door is open to avoid injury.
• If the door or door seals are damaged, the oven must not be operated until it has been repaired by a
competent person.
• Do not allow children to crawl into the oven.
• Do not put your hand under the controller or between the door and bottom vent trim during operation.
The outside of the oven can become very hot to the touch.
Maintenance
• Do not store items of interest to children in cabinets above an oven or on the back guard of an oven.
Children climbing on the oven to reach items could be seriously injured.
• Let hot cookware and utensils cool in a safe place, out of reach of small children.
• If the door glass, surface, or oven heating unit of the appliance are damaged, discontinue use of the
appliance and call for service.
• Always disconnect power from the appliance before servicing.
• Before replacing the oven light, switch off the electrical power to the oven at the main fuse or circuit
breaker panel.
• Never pour cold water over a hot oven for cleaning purposes.
• Do not clean with metal scouring pads. Pieces can burn off the pad and touch electrical parts causing a
risk of electric shock.
• Do not store any materials, other than manufacturer’s recommended accessories, in this oven when not
in use.
• Do not cover racks or any other part of the oven with metal foil. This will cause overheating of the oven.
• If the self-cleaning mode malfunction light goes on, or if the audible signal sounds, turn off or
disconnect the appliance from the power supply and have it serviced by a qualified technician.
• If the oven is heavily soiled with oil, self-clean the oven before using the oven again. The oil could cause
a fire.
• If there is a fire in the oven during self-clean, turn the oven off and wait for the fire to go out. Do not
force the door open. Introduction of fresh air at self-clean temperatures may lead to a burst of flame
from the oven. Failure to follow this instruction may result in severe burns.
• If your oven is dropped or damaged, have it thoroughly checked by a qualified service technician before
using it.
Risk of Fire and Flammable Materials
• Do not store or use flammable material in or near the oven. Flammable materials include paper, plastic,
pot holders, linens, wall coverings, curtains, and gasoline or other flammable vapors and liquids such as
grease or cooking oil. These materials can be ignited when the oven is in use.
• Use extreme caution when moving or disposing of hot grease.
• Wear proper apparel. Do not wear loose-fitting or hanging garments, which may ignite if they contact
hot surfaces, and cause severe burns.
• Do not use the oven for drying clothes. Only use the oven for its intended purpose.
• If cabinet storage is provided directly above the oven, use it to store items that are not frequently used
and can be safely stored in an area subjected to heat. Temperatures may be unsafe for volatile items
such as flammable liquids, cleaners or aerosol sprays.
• Do not use water on grease fires. Should an oven fire occur, leave the oven door closed and turn the
oven off. If the fire continues, throw baking soda on the fire or use a fire extinguisher. Do not put water
or flour on the fire. Flour may be explosive and water can spread a grease fire and cause personal injury.
us_main.book.book Page 7 Friday, December 3, 2021 2:25 PM

8IMPORTANT SAFETY INSTRUCTIONS
Microwave Oven
• The oven must be installed following the provided installation instructions.
• Secure the cord in the cabinet above the oven.
• Preserve the oven floor:
- Do not heat the oven floor excessively.
- Do not cook anything directly on the oven floor or turntable. Use a microwavable dish.
• Do not heat any type of baby bottle or baby food. Uneven heating may occur and possibly cause
personal injury.
• Do not deep-fat fry in the oven.
• Do not attempt home canning in the microwave oven.
• Do not use cylindrical-shaped containers.
• In all containers, for best results, stir the liquid several times before heating. Always stir liquid several
times between reheatings.
• Place food directly on the trays when cooking unless prompted by the oven to do otherwise.
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.
• 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:
- Clean the door and the sealing surfaces of the oven.
- Reorient the receiving antenna of the radio, TV, Bluetooth, or other equipment.
- Relocate the microwave oven in relation to the radio, TV, Bluetooth, or other equipment.
- Move the microwave oven away from the receiver.
- Plug the microwave oven into a different outlet so that the microwave oven and receiver are on
different branch circuits.
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.
us_main.book.book Page 8 Friday, December 3, 2021 2:25 PM

9IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
SAVE THESE INSTRUCTIONS
CAUTION
CAUTION
• To reduce the risk of minor injury to persons, malfunction, or damage to the product or property when
using this product, follow basic precautions, including the following:
Operation
• Always heat fat slowly, and watch as it heats.
• If frying combinations of oils and fats, stir them together before heating.
• Use a deep fat thermometer, if possible, to prevent overheating fat beyond the smoking point.
• Use the least possible amount of fat for effective shallow or deep-fat frying. Filling the pan with too much
fat can cause spillovers when food is added.
• Accessible parts may become hot when the grill is in use.
• Do not place food or cookware on the bottom of the oven cavity. Doing so will cause permanent damage
to the oven bottom finish.
• When using cooking or roasting bags in the oven, follow the manufacturer’s directions.
• To protect against food-borne illnesses, cook meat and poultry thoroughly. The USDA has indicated the
following as safe minimum internal temperatures for consumption:
- Ground beef: 160 °F (71 ℃)
- Poultry: 165 °F (74 ℃)
- Beef, veal, pork, or lamb: 145 °F (68 ℃)
- Fish/seafood: 145 °F (68 ℃)
• Do not use this oven for commercial purposes. It is made for household use only.
• The door or the outer surface may get hot when the appliance is operating.
• Do not use this oven for purposes other than cooking.
• Use caution if opening the door when the oven is operating. Hot surfaces can cause serious burns.
Maintenance
• Do not repair or replace any part of the appliance unless specifically recommended in the manual. All
other servicing should be performed by a qualified technician.
• Do not use harsh etching, abrasive cleaners or sharp metal scrapers to clean the oven door glass since
they can scratch the surface. Scratches may cause the glass to shatter.
• Make sure oven lights are cool before cleaning.
• Do not clean the door gasket. The door gasket is essential for a good seal. Care should be taken not to
rub, damage, or move the gasket.
• Never keep pet birds in the kitchen. The health of birds is extremely sensitive to the fumes released
during an oven self-clean cycle. Fumes may be harmful or fatal to birds. Move birds to a well-ventilated
room.
• Do not rinse trays and racks by placing them in water just after cooking. This may cause breakage or
damage.
• 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 shorten the life of the
appliance and possibly result in a hazardous situation.
us_main.book.book Page 9 Friday, December 3, 2021 2:25 PM

10 PRODUCT OVERVIEW
PRODUCT OVERVIEW
Product Features
The appearance and specifications listed in this manual may vary due to constant product improvements.
Exterior / Interior
NOTE
• The model and serial number can be verified at the rating label.
Accessories
Accessories for Upper Oven
The turntable rotates in both directions to help
food cook more evenly. Do not operate the
microwave oven without the glass tray in place.
aOven controller gBroiler pan and grid
bUpper oven door hStandard racks
cSpacer (2ea) iGasket
dLower oven door jGliding racks (2)
eRating label, model and serial number plate kAir fry tray
fSteam feeder tank
us_main.book.book Page 10 Friday, December 3, 2021 2:25 PM

11PRODUCT OVERVIEW
ENGLISH
aRack (For the Convection Bake, Broil and Speed
Cook functions)
bMetal tray (For the Convection Bake, Broil and
Speed Cook functions)
cGlass tray (For the Microwave and Defrost
functions)
dShaft
eRotating ring
Accessories for Lower Oven
Accessories for Cooking
aGrid
bHeavy duty standard rack
cBroiler pan
dGliding rack (2ea)
eMeat probe
fAir fry tray
Accessories for Installation
a4X14 6 wood screws for mounting (4 needed
for installation and 2 extras)
b4X24 6 wood screws for mounting (for flush
installation)
c4X22 2 self-tapping screws for cover bracket
d2 cover brackets for flush installation
e4X10 2 screws for bottom decorative trim
fBottom decorative trim
Accessories for EasyClean
aNon-scratch scouring pad (1ea)
Manuals
aOwner’s manual
bInstallation manual
NOTE
• Contact LG Customer Service at 1-800-243-0000
(1-888-542-2623 in Canada) if any accessories
are missing.
• For your safety and for extended product life,
only use authorized components.
• The manufacturer is not responsible for product
malfunction or accidents caused by the use of
separately purchased, unauthorized
components or parts.
• The images in this guide may be different from
the actual components and accessories, which
are subject to change by the manufacturer
without prior notice for product improvement
purposes.
•Do not remove gliding racks from the base
packing. The gliding racks are wrapped
separately for the top and bottom ovens.
us_main.book.book Page 11 Friday, December 3, 2021 2:25 PM

12 OPERATION
OPERATION
Operating Control Panel
Control Panel Features
aLCD Display On/Off bLCD Touchscreen for Oven
Display Icons
Icons appear in display when activated.
aLamp Icon (Upper Oven)
Touch to turn light on/off
bTimer Icon (Upper Oven)
Touch to set a timer
cMicrowave Quick Start
Touch to start Microwave mode quickly
dTimer Icon (Lower Oven)
Touch to set a timer
eLamp Icon (Lower Oven)
Touch to turn light on/off
fOven Cooling Icon
Appears during or after oven operation to indicate cooling fan is running in oven
gProbe Icon
Appears when probe is connected
us_main.book.book Page 12 Friday, December 3, 2021 2:25 PM

13OPERATION
ENGLISH
Energy Saving Tips
• Multiple-rack cooking saves time and energy.
Whenever possible, cook foods requiring the
same cooking temperature together in one
oven.
• For optimal performance and energy savings,
follow the guides for proper rack and pan
placement.
• Reduce energy use by cleaning light oven soil
with the EasyClean feature instead of self-clean.
• Avoid opening the oven door more than
necessary during use. This helps the oven
maintain temperature, prevents unnecessary
heat loss, and saves on energy use.
Changing Settings
Getting Started
After turning on the oven for the first time, adjust
the settings to suit your preferences.
1 Touch POWER on the LCD display.
2 After the startup animation, select the desired
language and touch NEXT.
3 Scroll the fields up or down to set the correct
date, and touch NEXT.
4 Set the correct time of day and choose
between a 12-hour or 24-hour time format.
Then touch NEXT.
5 If desired, change the default clock theme by
swiping through the examples. Then touch
NEXT.
6 Read through the application guide in the
display and touch DONE.
7 The mode screen appears in the display.
Settings
To adjust settings after the initial setup, touch the
display to open the Main screen. Touch Settings at
the bottom center of the Main screen.
Swipe the screen or touch the 34 arrow keys to
navigate through the Settings screens.
hAuto Conversion Icon
Appears when Convection Auto Conversion is turned on
iWi-Fi Icon
• Appears when oven is connected to Wi-Fi
• Appears when oven is disconnected from Wi-Fi or is not registered
jRemote Start Icon
Appears when Remote Start is active
kLock Icon
Appears when Lockout is on
(63$2/ )5$1$,6(1*/,6+
1(;7
Language Selction
us_main.book.book Page 13 Friday, December 3, 2021 2:25 PM

14 OPERATION
Location of Settings
• Page 1: Microwave Quick Start, Lockout, Date &
Time, Clock Themes, Sabbath Mode, Wi-Fi Setup
• Page 2: Remote Start, Brightness, Display,
Convection Auto Conversion, Language
Selection, Volume
• Page 3: Preheat Alarm Light, Temperature
Adjustment, Temperature Units, Smart
Diagnosis™, Program Update, Demo Mode
• Page 4: Factory Data Reset, Open Source License
Microwave Quick Start
Use the Microwave Quick Start setting to adjust
the preset cook time that is activated when you
press Start without setting a time. The power level
of the microwave and preset time can be set from
1 to 10 and 1 second to 5 minutes.
Setting Cook Time
1 Touch Settings at the center bottom of the
main screen.
2 Touch Microwave Quick Start on the first
Settings screen.
3 Set the power level and cook time.
4 Touch OK.
Lockout
The Lockout feature automatically prevents most
oven controls from being turned on. It does not
disable the clock, timer and the interior oven light.
Lock
1 Touch Settings at the center bottom of the
Main screen.
2 Touch Lockout on the first Settings screen.
3 When Lockout is turned on, the lock icon k
appears at the top of the display.
Unlock
1 Touch any part of screen while Lockout is on.
2 A popup screen appears. Touch Unlock for 3
seconds.
3 The lock icon disappears from the top of the
display.
Date & Time
The date and time show in the LCD display when
the ovens are not in use.
Setting Date
1 Touch Settings at the center bottom of the
Main screen. Then touch Date & Time on the
Settings screen.
2 Touch Date, and scroll to set the correct date.
3 Touch OK.
Setting Time of Day
1 Touch Settings at the center bottom of the
Main screen. Then touch Date & Time on the
Settings screen.
2 Touch Time, and scroll to set the correct hour
and minutes. You can also touch the number
pad icon and enter the desired numbers.
3 Select either a 12-hour or 24-hour clock mode
(12H/24H).
4 Touch OK.
Clock Themes
There are six different clock themes available,
including several analog and digital clocks.
1 Touch Settings at the center bottom of the
Main screen.
2 Touch Clock Themes on the first Settings
screen and swipe to browse through the clock
themes.
3 Select a clock theme and touch OK.
Number pad icon
us_main.book.book Page 14 Friday, December 3, 2021 2:25 PM

15OPERATION
ENGLISH
Sabbath Mode
Sabbath mode is used on the Jewish Sabbath and
Holidays.
While the oven is in Sabbath mode, the
temperature cannot be changed and the timer,
light, and alarm functions are disabled. Only the
cooking mode and set temperature appear in the
display.
NOTE
• If the oven light is turned ON and the SABBATH
mode is active, the oven light will stay ON. If the
oven light needs to be OFF, be sure to turn the
oven light OFF before activating the SABBATH
mode. SABBATH mode can only be used in Bake
mode.
Setting Sabbath Mode
1 Disconnect the probe. The Probe function is
not available in Sabbath mode.
2 Touch Settings at the center bottom of the
Main screen, and touch Sabbath in the first
Settings screen.
3 Read the instructions, and touch NEXT.
4 Set the desired temperature and cook time.
Any cook time can be set from 1 minute to 73
hours 59 minutes. If only using one oven,
touch START.
5 To stop Sabbath mode, press POWER on the
LCD display.
NOTE
• If a cook time is set, the oven turns off
automatically at the end of the cook time,
without chiming. The oven remains in Sabbath
mode, but is turned off.
• If no cook time is set, the oven will not
automatically turn off.
• After a power failure, the display will turn back
on in Sabbath mode, but the oven will be off.
• In Sabbath mode, the upper oven functions are
blocked and the Wi-Fi network cannot be
connected.
Wi-Fi
Connect the appliance to a home Wi-Fi network to
use Remote Start and other smart functions. See
the Smart Functions section for more details.
Setting Up Wi-Fi
1 Touch Settings at the center bottom of the
Main screen, and touch Wi-Fi in the first
Settings screen.
2 Follow the instructions in the Wi-Fi Guide in
the display.
3 Select ON, OFF, or RESET and touch OK.
4 If ON is selected, the Wi-Fi icon fappears at
the top of the display.
5 Selecting RESET initializes the IP address.
Remote Start
Remotely starts or stops the preheating function
of the appliance. The appliance must be registered
on a home Wi-Fi network to use Remote Start.
Setting Remote Start
1 Touch Settings at the center bottom of the
Main screen, and touch Remote Start in the
second Settings screen.
2 Select On or Off and touch OK.
3 If ON is selected, the Remote Start icon
appears at the top of the display.
Brightness
Adjust the brightness of the LCD display from 20 %
to 100 % in increments of 20 %.
Setting Display Brightness
1 Touch Settings at the center bottom of the
Main screen, swipe to the second Settings
screen, and touch Brightness.
Remote Start icon
us_main.book.book Page 15 Friday, December 3, 2021 2:25 PM

16 OPERATION
2 Adjust the display brightness by touching and
dragging the dot across the bar, by tapping
anywhere on the bar, or by touching ~or !.
3 Touch OK.
Display
Set the length of time before the display sleeps.
There are three options you can select.
•ON : Always on
•OFF : Automatically turns off if idle for 30
minutes.
•Night OFF : Turns off from 10:00 PM to 5:00 AM.
Setting Display Option
1 Touch Settings at the center bottom of the
Main screen, swipe to the second Settings
screen, and touch Display.
2 Select the desired option.
3 Touch OK.
Convection Auto Conversion
There is no need to remember to convert standard
recipe temperatures for convection cooking.
Convection Auto Conversion automatically
subtracts 25 ℉/ 14 ℃from the set temperature
when a convection cooking mode is selected. The
converted temperature appears in the display
once preheating is finished.
For example, select Convection Bake and enter 350
℉. The temperature will auto-convert to 325 ℉and
display the converted temperature.
Convection Auto Conversion is turned ON by
default.
Turning Convection Auto Conversion
On/Off
1 Touch Settings at the center bottom of the
Main screen, swipe to the second Settings
screen, and touch Convection Auto
Conversion.
2 Select ON or OFF.
3 When Convection Auto Conversion is ON, the
icon appears at the top of the display.
NOTE
• If Convection Auto Conversion is ON, the icon
flashes in the display while cooking in a
convection mode.
Language Selection
Set the display language to English, Spanish, or
French.
Selecting a Language
1 Touch Settings at the center bottom of the
Main screen, swipe to the second Settings
screen, and touch Language Selection.
2 Select the desired language.
3 Touch OK.
Volume
Adjust the volume of the oven controls.
Setting the Volume
1 Touch Settings at the center bottom of the
Main screen, swipe to the second Settings
screen, and touch Volume.
2 Select Mute, Low, or High.
3 Touch OK.
Preheat Alarm Light
When the oven reaches its set-temperature, the
preheating alarm light flashes 5 times or until the
oven door is opened.
You can turn the preheat alarm light on or off.
/HYHO
^
`
Convection auto
conversion icon
us_main.book.book Page 16 Friday, December 3, 2021 2:25 PM

17OPERATION
ENGLISH
Setting the Preheat Alarm
1 Touch Settings at the center bottom of the
Main screen, swipe to the third Settings
screen, and touch Preheat Alarm Light.
2 Select ON or OFF.
3 Touch OK.
Temperature Adjustment
Your new oven may cook differently than the one it
replaced. Use your new oven for a few weeks to
become more familiar with it before changing the
temperature settings. If after familiarizing yourself
with the new oven, you still think that it is too hot
or too cold, you can adjust the oven temperature
yourself.
NOTE
• To begin, either raise or lower the thermostat 15
℉(8 ℃). Try the oven with the new setting. If the
oven still needs adjustment, raise or lower the
thermostat again, using the first adjustment as a
gauge. For example, if the adjustment was too
much, raise or lower the thermostat 10 ℉(5 ℃).
If the adjustment was not enough, raise or lower
the thermostat 20 ℉(12 ℃). Proceed in this way
until the oven is adjusted to your satisfaction.
Adjusting the Thermostat
1 Touch Settings at the center bottom of the
Main screen, swipe to the third Settings
screen, and touch Temperature Adjustment.
2 To make large adjustments, drag the central
indicator toward the ~or !ends of the scale
or tap a location on the scale. To make small
adjustments, tap ~or !to raise or lower the
thermostat in 1-degree increments. Tap and
hold ~or !to scroll up or down the scale.
3 When the desired change appears above the
range, touch OK.
Temperature Units
Set the oven temperature display to show either
Fahrenheit or Celsius units.
The oven defaults to Fahrenheit unless changed by
the user.
Setting Temperature Units
1 Touch Settings at the center bottom of the
Main screen, swipe to the third Settings
screen, and touch Temperature Units.
2 Select ℉or ℃.
3 Touch OK.
Smart Diagnosis™
Smart DiagnosisTM can be run through a
smartphone application or by calling for support.
Place your smartphone's mouthpiece near the top
left corner of the screen. See "Smart Diagnosis
Function" in the Smart Functions section for
detailed instructions.
1 Touch Settings at the center bottom of the
Main screen, swipe to the third Settings
screen, and touch Smart Diagnosis.
2 Touch START to start the diagnostic tone.
Program Update
Once the appliance is connected to a home Wi-Fi
network, use this setting to check for available
programming updates and install them.
1 Touch Settings at the center bottom of the
Main screen, swipe to the third Settings
screen, and touch Program Update.
2 The display shows available programming
updates. Touch UPDATE to download and
install the new version.
Demo Mode
Demo Mode for showroom use only. The oven will
not heat up.
us_main.book.book Page 17 Friday, December 3, 2021 2:25 PM

18 OPERATION
1 Touch Settings at the center bottom of the
Main screen, swipe to the third Settings
screen, and touch Demo Mode.
2 Select either the ON or OFF mode.
3 Touch OK.
NOTE
• When Demo Mode is on, the appliance will not
heat up.
• The oven Demo Mode icon appears in the
display if the Demo Mode is on.
Factory Data Reset
This function returns all settings to the factory
defaults.
CAUTION
• All stored data will be deleted.
1 Touch Settings at the center bottom of the
Main screen, swipe to the fourth Settings
screen, and touch Factory Data Reset.
2 If you want to reset data to the factory
defaults, touch RESET and then OK.
Open Source License
This screen displays a list of the open source
software contained in this product. Refer to the
indicated licenses for the terms and conditions of
their use.
1 Touch Settings at the center bottom of the
Main screen and swipe to the fourth Settings
screen.
2 Touch Open Source License.
Oven Cooling
The oven cooling icon appears in the display if the
temperature inside the oven is high during or after
operation. The icon disappears if the oven
temperature is below 210 ℉(100 ℃).
Timer
The oven timers don't affect oven operation or
cooking time. Use them as extra kitchen timers.
Once the time runs out, the oven chimes and
"Timer 1 or 2 finished" appears in the display.
Setting the Timer
1 Touch either clock icon at the bottom of the
display.
2 Scroll through the numbers in the popup until
the desired time appears in the display, or
touch the number pad icon to enter the
numbers directly, and touch OK.
3 The time remaining appears next to the clock
icon in the display.
06:21
AM
DEMO
Clock icon
Number pad icon
10:25
AM
9:20 PM
7LPHU
2.
KU
PLQ
VHF
us_main.book.book Page 18 Friday, December 3, 2021 2:25 PM

19OPERATION
ENGLISH
Adjusting or Cancelling the Timer
1 Touch the remaining time next to the clock
icon in the display.
2 To cancel the timer, touch the Reset icon in
the popup. Then touch OK.
3 To adjust the time, scroll the numbers in the
popup until the desired time appears. Then
touch OK.
4 The remaining time in the display is adjusted.
Reset icon
us_main.book.book Page 19 Friday, December 3, 2021 2:25 PM

20 OPERATION
Operating the Upper
Microwave Oven
Before Using
WARNING
• To avoid risk of personal injury or property
damage, do not use stoneware, metal cookware,
or metal rimmed cookware in 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.
• 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.
NOTE
• Do not strike the control panel with silverware,
cookware, etc. It may be damaged or broken.
• Always be careful when taking cookware out of
the oven. Some dishes absorb heat from the
cooked food and may be hot. See the Cookware
Guide section for more information.
• To avoid breakage, allow cookware to cool
before rinsing or submerging in water. Always
allow the turntable to cool before removing it
from the oven.
• Use thermometers that have been approved for
microwave oven cooking.
• The turntable must always be in place when you
operate the oven.
Microwave Cookware Guide
Microwave-Safe Cookware
Use microwavable cookware.
WARNING
• Do not permit children to use plastic cookware
without complete supervision.
•Ovenproof Glass
- Ovenproof glassware that is treated for high
intensity heat so it is heat-resistant is
microwave-safe.
- Use utility dishes, loaf dishes, pie plates, cake
plates, liquid measuring cups, casseroles and
bowls without metal rims.
- Do not use delicate glassware, such as
tumblers or wine glasses, as these might
shatter when heated.
•China
- Use bowls, cups, serving plates, pottery,
stoneware, ceramics, and platters without
metal rims or handles. Many containers made
of these materials are microwave-safe, but test
them before use.
•Plastic
- Plastic Storage Containers: Use plastic
dishes, cups, semi-rigid freezer containers and
plastic bags only for short cooking times. 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.
- 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.
- Plastic Cooking Bags: Provided they are
specially made 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.
•Paper
- Use paper towels, waxed paper, paper
napkins, and paper plates with no metal rims
or design. Look for the manufacturer’s label
for use in the microwave oven.
- 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.
- Avoid colored paper products as the color may
run. Do not use recycled paper products in the
microwave oven. They may contain impurities
which could cause arcing or fires when used in
the microwave.
us_main.book.book Page 20 Friday, December 3, 2021 2:25 PM
Other manuals for WCES6428F
3
Table of contents
Other LG Oven manuals

LG
LG PrintProof WCES6428 Series User manual

LG
LG WDES9428F User manual

LG
LG intellocook ML-3483FRR User manual

LG
LG MP9885FRBZ User manual

LG
LG LWS3063BD/00 User manual

LG
LG SolarDOM MP-9483SL User manual

LG
LG LWD3081ST - Double Electric Oven User manual

LG
LG LSWS306ST User manual

LG
LG WSEZM7225S2 User manual

LG
LG WSED7613S User manual

LG
LG WCES6428F User manual

LG
LG SolarDOM MP-1283SL User manual

LG
LG MG-556EL User manual

LG
LG LSWS309BD User manual

LG
LG SolarDOM MA3884VC User manual

LG
LG LWD3081ST - Double Electric Oven Reference manual

LG
LG WDES9428F User manual

LG
LG MP-9485SR User manual

LG
LG LWS3081ST - 30in Single Electric Wall Oven User manual

LG
LG LSWD306ST User manual