LG LRG3091ST User manual

1
30” Freestanding Gas Range
SERVICE MANUAL
MODEL: LRG3091ST
LRG3091SB
LRG3091SW
CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Website http://biz.lgservice.com
P/NO : MFL63290104
August, 2010
Printed in Korea
삼흥
정판
Internal Use Only

This LG Service Manual, “ 30” Freestanding Self-Cleaning Gas Range,” provides the technician
with information on the operation and service of the Freestanding Self-Cleaning Gas Range. It
is to be used as a training Service Manual. For specific information on the model being
serviced, refer to the “Owner’s Manual” or “Tech Sheet” provided with the gas range.
SAFETY PRECAUTIONS
• Repairs of the appliance should be carried out by a licensed technician only. Incorrect repairs
may result in dangerous situations. If you need repairs, contact an LG Service Center or your
dealer.
• If the power cord is defective, it must be replaced by a qualified service agent with a UL listed
range cord.
• Electrical leads and cables should not be allowed to touch the oven.
• Rating plate is located on the left side of warming drawer.
• The power supply of the appliance should be turned off when it is being repaired.
FORWARD
LG Electronics assumes no responsibility for any repairs made
on our products by anyone other than Authorized Service Technicians.
WARNING
• DISCONNECT power supply cord from the outlet before servicing.
• Replace all panels and parts before operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal injury, death or electrical shock.
• DO NOT Touch when the oven operates.
- The interior parts will be very hot.
WARNING
If the information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury or death. If you
smell gas:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.

(P AGE )
GENERAL -------------------------------------------------------------------------------------------- 1-1 ~ 1-5
• Important safety instructions --------------------------------------------------------------------------------------
1-1 ~ 1-3
• Model & Serial number label and tech sheet locations
-----------------------------------------------------------
1-4
• Specifications
------------------------------------------------------------------------------------------------------------------
1-5
USING YOUR RANGE ------------------------------------------------------------------------- 2-1 ~ 2-4
• General information ---------------------------------------------------------------------------------------------------------
2-1
• Control panel features
----------------------------------------------------------------------------------------------
2-2 ~ 2-4
- To turn on on the surface burners
- Setting the Clock
- Start, Clear/Off
- To turn On/Off the oven light
- Timer On/Off
- Warm(Options: Hold 3 sec) pad: (6 types of category).
- Bake, Timed Bake, Delayed timed Bake
- Broil
- Warm
- Time cook with warm
- Oven lockout
- Changing hour mode on clock (12HR, 24HR)
- Proof
- Self-Clean
COMPONENT ACCESS --------------------------------------------------------------------- 3-1 ~ 3-28
• Component Locations
----------------------------------------------------------------------------------------------- 3-1~3-2
• Removing the Back, Control cover and Key pad assembly ----------------------------------------------- 3-3~3-4
• Removing Power Control Board (PCB) and the Spark Module (IG Trans) --------------------------------- 3-5
• Removing Power Control Board (PCB) --------------------------------------------------------------------------------- 3-6
• Removing the Cooktop Plate -------------------------------------------------------------------------------------------- 3-7
• Removing the Cooktop Plate and the Spark Module -------------------------------------------------------------- 3-8
• Removing the Case assembly(Cooktop Burner assembly) ----------------------------------------------------- 3-9
• Removing the Cooktop Parts
---------------------------------------------------------------------------------- 3-10~3-13
• Removing the Door Latch and the Door Switch ------------------------------------------------------------------- 3-14
• Removing the BROIL Burner assembly ----------------------------------------------------------------------------- 3-15
• Oven Bottom, the Frame guide and the Burner assembly --------------------------------------------- 3-16~3-17
• Removing the Oven light & Socket assembly ---------------------------------------------------------------------- 3-18
• Removing the latch drive assembly ----------------------------------------------------------------------------------- 3-19
- Door locking mechanism ---------------------------------------------------------------------------------------------- 3-19
• Removing the Oven temperature Sensor --------------------------------------------------------------------------- 3-20
• Removing & Replacing the Warming drawer ----------------------------------------------------------------------- 3-21
• Removing & Replacing the Lift-off Oven Door --------------------------------------------------------------------- 3-22
• Removing the Oven Door Handle & Glass
---------------------------------------------------------------- 3-23 ~ 3-24
• Removing the Oven Door Gasket ------------------------------------------------------------------------------------- 3-25
• Removing a Side Panel --------------------------------------------------------------------------------------------------- 3-26
• Removing the Oven Valve (Safety Valve) & Gas Regulator ------------------------------------------- 3-27~3-28
TABLE OF CONTENTS

(Page)
COMPONENT TEST ----------------------------------------------------------------------------- 4-1 ~ 4-3
• Door locking Motor
--------------------------------------------------------------------------------------------------------- 4-1
• Micro Switch (normally open type)
----------------------------------------------------------------------------------- 4-2
• Oven Sensor
----------------------------------------------------------------------------------------------------------------- 4-2
• Door switch
------------------------------------------------------------------------------------------------------------------- 4-2
• Oven lamp
-------------------------------------------------------------------------------------------------------------------- 4-3
• Broil or bake igniter
-------------------------------------------------------------------------------------------------------- 4-3
• Oven (safety) valve
-------------------------------------------------------------------------------------------------------- 4-3
• Ignition switch
---------------------------------------------------------------------------------------------------------------- 4-3
CONVERSION TO LP GAS ------------------------------------------------------------------ 5-1 ~ 5-8
COMPOSITION OF CONTROL
------------------------------------------------------------- 6-1 ~ 6-4
• Main PCB ----------------------------------------------------------------------------------------------------------------------- 6-2
• Power PCB ---------------------------------------------------------------------------------------------------------------------- 6-2
• Main PCB ------------------------------------------------------------------------------------------------------------------------ 6-4
• Power PCB ---------------------------------------------------------------------------------------------------------------------- 6-4
DIAGNOSIS THROUGH SCHEMATIC ----------------------------------------------------- 7-1~7-2
CHECK THE FAILURE CODE (F-code)
--------------------------------------------------------- 8-1
FAILURE CODE SUMMARY
-------------------------------------------------------------------------- 9-1
CHECKING FLOW CHART BY FAILURE
---------------------------------------- 10-1 ~ 10-23
• No display (No power)
------------------------------------------------------------------------------------------- 10-2 ~ 10-4
• No heating (including F11 error)
----------------------------------------------------------------------------- 10-5 ~ 10-8
• Door lock system failure (including F10 error)
---------------------------------------------------------- 10-9 ~ 10-12
• Sensing fail (including F1, F2 error)
--------------------------------------------------------------------- 10-13 ~ 10-16
• Oven hot (including F6 error) ------------------------------------------------------------------------------ 10-17 ~ 10-19
• Key pad failure (including F3 error) ---------------------------------------------------------------------- 10-20 ~ 10-21
• Oven lamp does not operate ------------------------------------------------------------------------------- 10-22 ~ 10-23
TROUBLE SHOOTING --------------------------------------------------------------------- 11-1 ~ 11-4
EXPLODED VIEW
-------------------------------------------------------------------------- 12-1 ~ 12-14

1-1
GENERAL
IMPOR
IMPORT TANT SAFETY INSTRUCTIONS ANT SAFETY INSTRUCTIONS
Read and follow all instructions before using your oven to prevent the risk of fire, electric shock, injury to person, or
damage when using the range. This guide don’t cover all possible conditions that may occur. For further assistance
contact your service agent or manufacturer.
This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hunt you
and others. All safety messages will follow the safety alert symbol and either the word “WARNING”
or “CAUTION”. These word means :
This symbol will alert you to hazards or unsafe practices which could cause
serious bodily harm or death.
WARNING
This symbol will alert you to hazards or unsafe practices which could cause
bodily injury or property damage.
CAUTION
WARNING
• DO NOT step or sit on the door and install the Anti-Tip Bracket packed with range.
- The range could be tipped and injury might result from spilled hot liquid, food, or the range itself.
- If the range is pulled away from the wall for cleaning, service, or any other reason, ensure that the Anti-Tip
Device is properly reengaged when the range is pushed back against the wall.
• DISCONNECT power supply cord from the outlet before servicing.
• Replace all panels and parts before operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal injury, death or electrical shock.
• DO NOT touch burners, grates or interior surfaces of oven.
- Heating element may be hot even though they are off.
- 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 burners, grates or interior surfaces of oven until they have had sufficient
time to cool.
-Other surfaces of the appliance may become hot enough to cause burns among these surfaces are oven vent
openings and surfaces near these openings, oven doors, and windows of oven doors.
• DO NOT store items of interest to children in cabinets above a range or on the back guard of a range.
- Children climbing on the range to reach items could be seriously injured.
CAUTION
• Always use Pot Holders or oven mitts when removing food from the Warming Drawer.
- You can be burned as cookware and plates will be hot.
• Be careful when you work on the gas range handling the sheet metal part.
- Sharp edge may be present and you can cut yourself.
• Be careful not to bend the fan blade
- Failure to do so can result in vibration, noise, and poor performance of convection when operating.
• Be careful not to scratch or chip the oven liner paint when you remove the oven light socket
in the next step.
• Turn power OFF before removing the Warming Drawer.
•
Be careful when removing and lifting the door.
• DO NOT lift the door by the handle.
- Failure to do so can result in personal injury as the door is very heavy.

1-2
GENERAL
IMPOR
IMPORT TANT SAFETY INSTRUCTIONS ANT SAFETY INSTRUCTIONS
WARNING
• DISCONNECT power supply cord from
the outlet before servicing.
• Replace all panels and parts before
operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal
injury, death or electrical shock.
• Be sure your appliance is properly installed and grounded by
a qualified technician.
• Do not repair or replace any part of the appliance unless
specifically recommended in the manual.
All other servicing should be referred to a qualified technician.
• Always disconnect power to appliance before servicing by
removing the fuse or switching off the circuit breaker
• DO NOT step or sit on the door and install the Anti-Tip
Bracket packed with range.
- The range could be tipped and injury might result from
spilled hot liquid, food, or the range itself.
- If the range is pulled away from the wall for cleaning,
service, or any other reason, ensure that the Anti-Tip
Device is properly reengaged when the range is pushed
back against the wall.
To reduce the risk of tipping of the range, the range must be
secured by properly installed anti-tip devices. To check if
the bracket is installed properly.
- Warming drawer : grasp the top rear edge of the Range
and carefully attempt to tilt it forward.
Verify that the anti-tip devices are engaged.
- Storage drawer : Remove drawer and verify leveling leg is
inserted into and fully secured by the anti-tip devices.
Refer to the installation manual for proper anti-tip bracket installation.
WARNING
• DO NOT touch burners, grates or
interior surfaces of oven.
-
Burners, grates may be hot even though they are off.
- 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 burners, grates or
interior surfaces of oven until they
have had sufficient time to cool.
-
Other surfaces of the appliance may become hot
enough to cause burns among these surfaces are
oven vent openings and surfaces near these
openings, oven doors, and windows of oven doors.
WARNING
• DO NOT store items of interest to
children in cabinets above a range or
on the back guard of a range.
- Children climbing on the range to reach items
could be seriously injured.
WARNING
• ALL RANGES CAN TIP
• INJURY TO PERSONS
COULD RESULT
• INSTALL ANTI-TIP DEVICES
PACKED WITH RANGE
• SEE INSTALLATION
• Do Not Leave Children Alone - Children should not be left
alone or unattended in area where appliance is in use. They
should never be allowed to sit or stand on any part of the
appliance.
• Never Use Your Appliance for Warming or Heating the
Room.
• Storage in or on Appliance – Flammable materials should
not be stored in an oven or near surface units. Be sure all
packing materials are removed from the appliance before
operating it. Keep plastics, clothes and paper away from parts
of the appliance that may become hot
• Wear Proper Apparel – Loose-fitting or hanging garments
should never be worn while using the appliance.
• Do Not Use Water on Grease Fires – Turn off oven to avoid
spreading the flame. Smother the fire or flame by closing the
door or use dry chemical, baking soda or foam- type
extinguisher.
• Make sure your range is properly adjusted by a qualified
service technician or installer for the type of gas (natural or
LP) that is to be used. Your range can be converted for use
with either type of gas.
• NEVER block the vents (air holes)of the range. They provide
the air inlet and outlet that are necessary for the range to
operate properly with correct combustion. Air openings are
located at the rear of the cooktop, at the top and bottom of the
oven door, and at the bottom of the range under the warming
drawer.

1-3
GENERAL
SURFACE COOKING UNITS
• If the top burner flame goes out,gas is still flowing to the
burner until the knob is turned to the “OFF” position.Do not
leave the burners “ON” unattended.
• Use Proper Pan Size – This appliance is equipped with one
or more surface units of different sizes. Select utensils having
flat bottoms large enough to cover the surface unit heating
element. The use of undersized utensils will expose a portion
of the heating element to direct contact and may result in
ignition of clothing. Proper relationship of utensil to burner will
also improve efficiency.
• Never Leave Surface Units Unattended at High Heat
Settings – Boil overs may cause smoking and greasy
spillovers may ignite.
• Make Sure Reflector Pans or Drip Bowls Are in Place –
Absence of these pans or bowls during cooking may subject
wiring or components underneath to damage.
• Protective Liners – Do not use aluminum foil to line surface
unit drip bowls or oven bottoms, except as suggested in the
manual. Improper installation of these liners may result in a
risk of electric shock, or fire.
• Glazed Cooking Utensils – Only certain types of glass,
glass/ceramic, ceramic, earthenware, or other glazed utensils
are suitable for range-top service without breaking due to the
sudden change in temperature.
• Utensil Handles Should Be Turned Inward and Not Extend
Over Adjacent Surface Units – To reduce the risk of burns,
ignition of flammable materials, and spillage due to
unintentional contact with the utensil, the handle of a utensil
should be positioned so that it is turned inward, and does not
extend over adjacent surface units.
• Be sure you know which knobs operate each burner.
Make sure you turned on the correct burner.
• To prevent burns, always be sure that the controls for all
burners are at the “OFF” position and all grates are cool
before attempting to remove them.
IMPOR
IMPORT TANT SAFETY INSTRUCTIONS ANT SAFETY INSTRUCTIONS
SELF-CLEAN OVENS
• Do Not Clean Door Gasket – The door gasket is essential
for a good seal. Care should be taken not to rub, damage, or
move the gasket.
• Do Not Use Oven Cleaners – No commercial oven cleaner
or oven liner protective coating of any kind should be used in
or around any part of the oven.
• Clean in the self-clean cycle only parts listed in this
manual. Before self-cleaning the oven, remove the broiler
pan and any utensils from the oven.
• 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 well-ventilated room.
• Important Instruction – In the event the self-clean mode “F”
code goes on, or three long beeps sound, oven is
malfunctioning in the self-clean mode. Turn off or disconnect
appliance from power supply and have serviced by a qualified
technician.
VENTILATING HOODS:
• Clean Ventilating Hoods Frequently – Grease should
not be allowed to accumulate on hood or filter.
• When flaming foods under the hood, turn the fan on.
OVEN
• Use Care When Opening Door – Let hot air or steam
escape before you remove or replace food in the oven
• Do Not Heat Unopened Food Containers – Build-up of
pressure may cause container to burst and result in injury.
• Keep Oven Vent Ducts Unobstructed – the oven vent is
located above the center burner. This area could become hot
during oven use. Never block this vent and never place plastic
or heat-sensitive items on vent.
• Placement of Oven Racks – Always place oven racks in
desired location while oven is cool. If rack must be moved
while oven is hot, do not let potholder contact hot heating
element in oven.
• Do Not allow aluminum foil or meat probe to contact heating
elements.
DEEP FAT FRYERS:
• Use extreme caution when moving the grease kettle or
disposing of hot grease.

1-4
GENERAL
The Model/Serial Number label and Tech Sheet locations are shown below.
Model & Serial
Number Location
MODEL & SERIAL NUMBER LABEL
MODEL & SERIAL NUMBER LABEL
AND TECH SHEET LOCA
AND TECH SHEET LOCATIONS TIONS
Tech Sheet Location
(On Low Rear Cover)
For Model Product Code
LRG3091ST /00 FG4124ES.FSTELGA
LRG3091SB /00 FG4124EB.FBKELGA
LRG3091SW /00 FG4124EW.FWHELGA
For Model Product Code
LRG3091ST /01 FG4124ES.FS1ELGA
LRG3091SB /01 FG4124EB.FB1ELGA
LRG3091SW /01 FG4124EW.FW1ELGA
LRG3091ST /02 FG4124ES.FS2ELGA
LRG3091SB /02 FG4124EB.FB2ELGA
LRG3091SW /02 FG4124EW.FW2ELGA

1-5
GENERAL
SPECIFICA
SPECIFICATIONS TIONS
Model Number LRG3091ST LRG3091SB LRG3091SW
Category Non Convection
Overall
Control
Cooktop
Input Rate
NAT / LP
[BTU/hr]
Oven
Drawer
Dimensions
Power
Width
Installation type
Color availability
Oven
Cooktop
Display
Electronic clock & timer
Control lock capability
Audible preheat signal
Special function
Material
# of element
LR
RR
CR
LF
RF
Capacity(cu.fe)
Broil (NAT/ LP)[BTU/hr]
Bake (BTU/hr)
Convection system
# of Racks
Interior oven light
Proof
Cook & warm
Favorites
Door lock out
Broiler pan
Type
Oven Interior(W x H x D)
Exterior - Width
Exterior - Height
Exterior - Depth
Net weight: lbs (kg)
Rating
30"
Freestanding
STS Black White
Push button key pad
Knob
LED Green
Yes
Yes
Yes
1. Thermostat Adjustment
2. Preheating Alarm Light On/Off
3. Beeper Volume (High, Low, Off)
4. Temperature unit (˚F / ˚C)
5. Clock (12hr, 24hr)
Enamel
55 5
9.1k / 9.1k
5k / 5k
9.1k / 9.1k
12k / 9.5k
17k / 10k
5.4
14.5k / 13.5k
18k / 18k (LRG3091ST, LRG3091SB, LRG3091SW)
19k / 18k (LRG3091ST /01, LRG3091SB /01, LRG3091SW /01,
LRG3091ST /02, LRG3091SB /02, LRG3091SW /02)
No
2 (standard)
auto / manual
No
Yes
No
Yes
No
Storage
24 1/2x 19 1/2x 19 3/8
30
36 (cooktop), 47 7/16 (backguard top)
26 1/2 (Door), 28 3/4(with handle)
269 lbs (122kg)
120V 4.5A

2-1
USING YOUR RANGE
Rating Label
Model numbers are recorded on the rating label.
Rating label is located on the lower front left corner
of the oven frame. It can be seen by opening the
storage drawer or warming drawer. Before ordering
parts, write down the correct model and serial
number from rating label. This avoids incorrect
shipments and delays. Please refer to parts
reference material when ordering replacement parts.
Functional Operation
Bake Mode
Bake burner operates during bake mode. Bake can
be used to cook foods which are normally baked.
Oven must be preheated.
Broil Mode
Broil burner operates during broil mode. Broil can
be used to cook foods which are normally broiled.
Preheating is not required when using broil. All
foods should be turned at least once except fish,
which does not need to be turned.
Cooking Guide
Refer to the owners manual for recommendations
of times and temperatures. Times, rack position,
and temperatures may vary depending on
conditions and food type. For best results, always
check food at minimum time. When roasting,
choose rack position based on size of food item.
GENERAL INFORMA
GENERAL INFORMATION TION
Bake burner
Broil burner

2-2
USING YOUR RANGE
CONTROL P
CONTROL PANEL FEA ANEL FEATURES TURES
1 2 3 4 5 6
7 8 10 11 129
1. CLOCK Pad: Press before setting the time of day.
2. COOK TIME Pad: Press and then use the + and -
pads to set the amount of time you want your food to
cook. The oven will shut off when the cooking time
has run out.
3. Display: Shows the time of day, oven temperature,
whether the oven is in the bake, broil or self-cleaning
mode, and the times set for the timer or automatic
oven operations.
4. BROIL Pad: Press to select the broil function.
5. BAKE Pad: Press to select the bake function.
6. START Pad: Must be pressed to start any cooking or
cleaning function.
7. START TIME Pad: Use along with Bake, Cook Time,
and Self Clean pads to set the oven to start and stop
automatically at a time you set.
8. TIMER ON/OFF Pad: Press to select the timer
feature.
9. +/- Pad: Enters or changes time, oven temperature.
Sets HI or LO broil.
10. SELF CLEAN Pad: Press to select self-cleaning
function. See the using the Self-Cleaning Oven
section.
11. OVEN LIGHT Pad: Press to turn the oven light on
or off.
12. CLEAR OFF Pad: Press to cancel all oven
operations except the clock and timer.
NOTE:
If F– and a number appear in the display and the
oven control signals, this indicates a function error
code.
Press the CLEAR OFF pad. Allow the oven to cool for
one hour. Put the oven back into operation.
If the function error code repeats, disconnect the power
to the oven and call for service.
If your oven was set for a timed oven operation
and a power outage occurred, the clock and all
programmed functions must be reset.
The time of day will flash in the display when there
has been a power outage.

2-3
USING YOUR RANGE
1. TO TURN ON THE SURFACE BURNER
1. Be sure all the surface burners are placed in
their respective positions.
2. Push the control knob in and turn it to the
“LITE” positions.
3. You can hear a little CLICKING noise - the
sound of the electric spark igniting the
burners.
4. To control the flame size, turn the knob. If the
knob stays at “LITE”, it will continue to click.
NOTE:
• When turning a burner to LITE, all the burners spark.
Do not attempt to disassemble or clean around any
burner while another burner is on. An electric shock
may result, which could cause you to knock over hot
cookware.
• The medium (left rear) and the large (left front) burners
are the primary burners for most cooking. These
general-purpose burners can be turned down from “HI”
to “LO” suit a wide range of cooking needs.
• The extra large burner (right front) is the maximum
output burner. Like the other four burners, it can be
turned down from “HI” to “LO” for a wide range of
cooking applications.
• This burner is also designed to quickly bring large
amounts of liquid to a boil. It has a special “Ultra Heat”
setting designed to be used with cookware 10 inches or
larger in diameter.
• The oval burner (center) is for large pots/pans or for use
with the griddle.
• The extra large burner (dual) can be also turned down
to “LO” for a low simmer setting almost like the small
burner.
2. SETTING THE CLOCK
3. START, CLEAR/OFF
1. Touch START pad to start oven.
2. Touch CLEAR/OFF pad to cancel a program
during cooking or Erase during programming.
4. TO TURN ON/OFF THE OVEN LIGHT
The oven light automatically turns ON when the
door is opened. The oven light may also be
manually turned ON or OFF by press the OVEN
LIGHT pad
NOTE: The oven light cannot be turned on if self-clean
feature is active.
5. TIMER ON/OFF
To cancel timer at any time, touch TIMER ON/OFF pad.
NOTE:
1. If you press TIMER ON/OFF pad once, this allows you to
select “seconds”
(for example: if you press “5” and “6”, it means 56 seconds)
2. If you press TIMER ON/OFF pad twice, this allows you to
select “minutes”
(for example: if you press “5” and “6”, it means 56 minutes)
6. OVEN TEMPERATURE ADJUSTMENT
The oven temperature can be adjusted from
-35°F (-19°C) to 35°F (19°C).
NOTE: The oven temperature adjustments made with this
feature will just change Bake, temperature.
To increase the oven temperature:
1. Press and hold BAKE for 3 Seconds.
2. Press the desired temperature
3. Press START pad.
To decrease the oven temperature:
1. Press and hold BAKE for 3 Seconds.
2. Press the desired temperature
3. Press START pad
CLEAR
/OFF CLOCK Desired
Time START
TIMER
ON/OFF
Desired
time
TIMER
ON/OFF

7. PREHEATING ALARM LIGHT ON/OFF
1. Press and hold TIMER ON/OFF for 3 seconds.
The display will show Opt.
2. Press OVEN LIGHT to switch between On and
OFF.
3. Press START pad.
8. BEEPER VOLUME
1. Press and hold TIMER ON/OFF for 3 seconds.
The display will show Opt.
2. Press - to switch beeper volume
(Hi, Lo, and OFF.)
3. Press START pad.
9. TEMPERATURE UNIT(°F or °C)
1. Press and hold TIMER ON/OFF for 3 seconds.
The display will show Opt.
2. Press + to switch between the F and C.
3. Press START pad.
10.
BAKE, TIMED BAKE, DELAYED TIMED BAKE
11. BROIL
12. TIMED COOK WITH WARM
13. OVEN LOCKOUT
14. CHANGING HOUR MODE ON CLOCK
(12HR, 24HR)
15. SELF-CLEAN
2-4
USING YOUR RANGE
START
SELF CLEAN
: Once →3-hour
: Twice →2-hour
: 3 times →4-hour
BAKE Desired
Temp.
COOK
TIME
Desired
time WARM START
Press and hold the CLOCK pad for 3 seconds
(to activate or reactivate LOCKOUT)
Press and hold the CLOCK pad for 3 seconds
Press “1” pad to select
12 or 24 hour. START
START
TIME
Desired
start time START
BAKE Desired
temperature START
COOK
TIME Desired time START
START
TIME
Desired
start time START
START
BROIL: once →High
: twice →Low

3-1
COMPONENT ACCESS
This section instructs you on how to service each component inside the range. The components and their
locations are shown below.
COMPONENT LOCA
COMPONENT LOCATIONS TIONS
Main PCB
Relay PCB Power PCB
Spark module
Burner body
Cooktop valve
Door switch
Oven valve
Bake burner
Ignition switch
Door lock assembly
Broil burner
Door locking motor
& micro switch
Burner pipe
Igniter (broil)
Oven light
Oven sensor
Igniter (bake)
Gas pressure
regulator
For Model Product Code
LRG3091ST /00 FG4124ES.FSTELGA
LRG3091SB /00 FG4124EB.FBKELGA
LRG3091SW /00 FG4124EW.FWHELGA

3-2
COMPONENT ACCESS
This section instructs you on how to service each component inside the range. The components and their
locations are shown below.
COMPONENT LOCA
COMPONENT LOCATIONS TIONS
Oven valve
Gas pressure
regulator
Main PCB
Relay PCB Power PCB
Burner body
Cooktop valve
Bake burner
Ignition switch
Door lock assembly
Broil burner
Door locking motor
& micro switch
Burner pipe
Igniter (broil)
Oven light
Oven sensor
Igniter (bake)
Door switch
Spark module
For Model Product Code
LRG3091ST /01 FG4124ES.FS1ELGA
LRG3091SB /01 FG4124EB.FB1ELGA
LRG3091SW /01 FG4124EW.FW1ELGA
LRG3091ST /02 FG4124ES.FS2ELGA
LRG3091SB /02 FG4124EB.FB2ELGA
LRG3091SW /02 FG4124EW.FW2ELGA

3-3
COMPONENT ACCESS
1. Turn off the electrical supply and gas supply
going to the range.
2. Pull the range away from the wall so that you can
access the rear panel.
3. Remove two wire covers by removing the screw.
4. Remove the 3 screws from the rear control cover
and remove the cover.
5. Remove the 16 screws from the rear back cover
and remove the cover.
7.
Remove the 6 screws of PCB assembly and separate
PCB assembly after unpluging the connectors.
8. Remove the 2 screws of the eyebrow from the
controller sub assembly and remove the eyebrow.
9.
Remove the 5 screws of controller sub assembly.
10.
Pull the controller sub assembly and lift it up from the supporters.
11. Remove the 3 screws of controller sub assembly.
12. Replace the key pad assembly.
6.
Remove the 4 screws of PCB assembly and separate
PCB assembly after unpluging the connectors.
REMOVING THE BACK, CONTROL
REMOVING THE BACK, CONTROL
COVER AND KEY P
COVER AND KEY PAD ASSEMBL AD ASSEMBLY Y
WARNING
• DISCONNECT power supply cord
from the outlet before servicing.
• Replace all panels and parts before
operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal
injury, death or electrical shock.
Control Cover
Wire cover
Back Cover
CAUTION
•
Be careful when you work on the gas
range handling the sheet metal part.
- Sharp edge may be present and you can cut
yourself.
Eyebrow
Pull
Lift up
For Model Product Code
LRG3091ST /00 FG4124ES.FSTELGA
LRG3091SB /00 FG4124EB.FBKELGA
LRG3091SW /00 FG4124EW.FWHELGA

3-4
COMPONENT ACCESS
1. Turn off the electrical supply and gas supply
going to the range.
2. Pull the range away from the wall so that you can
access the rear panel.
3. Remove two wire covers by removing the screw.
4. Remove the 3 screws from the rear control cover
and remove the cover.
5. Remove the 10 screws from the rear back cover
and remove the cover.
7.
Remove the 6 screws of PCB assembly and separate
PCB assembly after unpluging the connectors.
8. Remove the 2 screws of the eyebrow from the
controller sub assembly and remove the eyebrow.
9. Remove the 5 screws of controller sub assembly.
10. Pull the controller sub assembly and lift it up from the supporters.
11. Remove the 3 screws of controller sub assembly.
12. Replace the key pad assembly.
6.
Remove the 4 screws of PCB assembly and separate
PCB assembly after unpluging the connectors.
REMOVING THE BACK, CONTROL
REMOVING THE BACK, CONTROL
COVER AND KEY P
COVER AND KEY PAD ASSEMBL AD ASSEMBLY Y
WARNING
• DISCONNECT power supply cord
from the outlet before servicing.
• Replace all panels and parts before
operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal
injury, death or electrical shock.
Control Cover
Wire cover
Back Cover
CAUTION
•
Be careful when you work on the gas
range handling the sheet metal part.
- Sharp edge may be present and you can cut
yourself.
Eyebrow
Pull
Lift up
For Model Product Code
LRG3091ST /01 FG4124ES.FS1ELGA
LRG3091SB /01 FG4124EB.FB1ELGA
LRG3091SW /01 FG4124EW.FW1ELGA
LRG3091ST /02 FG4124ES.FS2ELGA
LRG3091SB /02 FG4124EB.FB2ELGA
LRG3091SW /02 FG4124EW.FW2ELGA

3-5
COMPONENT ACCESS
REMOVING POWER CONTROL BOARD (PCB)
REMOVING POWER CONTROL BOARD (PCB)
AND THE SP
AND THE SPARK MODULE (IG TRANS) ARK MODULE (IG TRANS)
1. Turn off the electrical supply and gas supply
going to the range.
2. Pull the range away from the wall so that you can
access the rear panel.
3. Remove wire cover & control cover (See step
3~4 on page 3-3)
4. There are 3 PCB's (power control board). When
you check PCB, check the proper pcb in default
mode and check main pcb.
NOTE: Refer to the page 6-1~6-2 for
composition of control board
5. 5 connectors of the electrode and a
connector of the harness.
a) Disconnect 6 connectors.
b) Remove the 2 screws.
c) Remove the 2 tabs by using long nose pliers.
Power Supply PCB Main PCB Relay PCB
WARNING
• DISCONNECT power supply cord
from the outlet before servicing.
• Replace all panels and parts before
operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal
injury, death or electrical shock.
CAUTION
• Be careful when you work on the
gas range handling the sheet metal
part.
- Sharp edge may be present and you can cut
yourself.
For Model Product Code
LRG3091ST /00 FG4124ES.FSTELGA
LRG3091SB /00 FG4124EB.FBKELGA
LRG3091SW /00 FG4124EW.FWHELGA

3-6
COMPONENT ACCESS
REMOVING POWER CONTROL
REMOVING POWER CONTROL
BOARD (PCB)
BOARD (PCB)
1. Turn off the electrical supply and gas supply
going to the range.
2. Pull the range away from the wall so that you can
access the rear panel.
3. Remove wire cover & control cover (See step
3~4 on page 3-3)
4. There are 3 PCB's (power control board). When
you check PCB, check the proper pcb in default
mode and check main pcb.
NOTE: Refer to the page 6-1~6-2 for
composition of control board
Power Supply PCB Main PCB Relay PCB
WARNING
• DISCONNECT power supply cord
from the outlet before servicing.
• Replace all panels and parts before
operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal
injury, death or electrical shock.
CAUTION
• Be careful when you work on the
gas range handling the sheet metal
part.
- Sharp edge may be present and you can cut
yourself.
For Model Product Code
LRG3091ST /01 FG4124ES.FS1ELGA
LRG3091SB /01 FG4124EB.FB1ELGA
LRG3091SW /01 FG4124EW.FW1ELGA
LRG3091ST /02 FG4124ES.FS2ELGA
LRG3091SB /02 FG4124EB.FB2ELGA
LRG3091SW /02 FG4124EW.FW2ELGA

3-7
COMPONENT ACCESS
1. Turn off the electrical supply and gas supply
going to the range.
2. Remove the griddle, grates, burner caps and
burner heads.
3. Remove all 15 screws from cooktop burner
housings.
4. Disengage 2 front clips using a flat blade screw-
driver.
5. Life top up at front.
NOTE : Before lowering the top onto the front clips,
line up the burner body and with the cooktop to
replace screws.
REMOVING THE COOKT
REMOVING THE COOKTOP PLA OP PLATE TE
WARNING
• DISCONNECT power supply cord
from the outlet before servicing.
• Replace all panels and parts before
operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal
injury, death or electrical shock.
For Model Product Code
LRG3091ST /00 FG4124ES.FSTELGA
LRG3091SB /00 FG4124EB.FBKELGA
LRG3091SW /00 FG4124EW.FWHELGA