LG LRG3061ST User manual

30” Freestanding Gas Range

SERVICE MANUAL

MODEL: LRG3061ST

LRG3061BD

CAUTION

BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL63290119

Mar, 2016

Printed in Korea

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.

(Page)

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 THE SURFACE BURNER

-SETTING THE CLOCK

-START, CLEAR/OFF

-TO TURN ON/OFF THE OVEN LIGHT

-TIMER ON/OFF

-SETTING : (5 types of category)

-BAKE, TIMED BAKE

-BROIL

-OVEN LOCKOUT

• Using Smart Diagnosis™

------------------------------------------------------------------------------------------------------

2-5

COMPONENT ACCESS

------------------------------------------------------------------------

3-1 ~ 3-21

• Component Locations

----------------------------------------------------------------------------------------------------------

3-1

• Removing the Back, Control cover and Key pad assembly

-------------------------------------------------------

3-2

• Removiing Power Control Board (PCB)

-----------------------------------------------------------------------------------

3-3

• Removiing the Cooktop Plate and the Spark Module

---------------------------------------------------------------

3-4

• Removing the Case assembly(Cooktop Burner assembly)

------------------------------------------------------

3-5

• Removing the Cooktop Parts

------------------------------------------------------------------------------------------

3-6~3-7

• Removing the BROIL Burner assembly

----------------------------------------------------------------------------------

3-9

• Oven Bottom, the Frame guide and the Burner assembly

-------------------------------------------------------

3-10

• Removing the Oven light & Socket assembly

------------------------------------------------------------------------

3-12

• Removing the Oven temperature Sensor

------------------------------------------------------------------------------

3-14

• Removing & Replacing the drawer

---------------------------------------------------------------------------------------

3-15

• Removing & Replacing the Lift-off Oven Door

-----------------------------------------------------------------------

3-16

• Removing the Oven Door Handle & Glass

--------------------------------------------------------------------

3-17~3-18

• Removing the Oven Door Gasket

----------------------------------------------------------------------------------------

3-19

• Removing a Side Panel

------------------------------------------------------------------------------------------------------

3-20

• Removing the Oven Valve (Safety Valve) & Gas Regulator

-----------------------------------------------------

3-21

TABLE OF CONTENTS

(Page)

COMPONENT TEST

--------------------------------------------------------------------------------

4-1 ~ 4-4

•

Oven Sensor

---------------------------------------------------------------------------------------------------------------------

4-2

•

Door switch

------------------------------------------------------------------------------------------------------------------------

4-3

•

Oven lamp

-------------------------------------------------------------------------------------------------------------------------

4-3

•

Broil or bake igniter

-------------------------------------------------------------------------------------------------------------

4-3

•

Oven (safety) valve

-------------------------------------------------------------------------------------------------------------

4-4

•

Ignition switch

---------------------------------------------------------------------------------------------------------------------

4-4

CONVERSION TO LP GAS

---------------------------------------------------------------------

5-1 ~ 5-5

COMPOSITION Of CONTROL

----------------------------------------------------------------

6-1 ~ 6-2

• Main PCB

----------------------------------------------------------------------------------------------------------------------------

6-2

• Power PCB

--------------------------------------------------------------------------------------------------------------------------

6-2

DIAGNOSIS THROUGH SCHEMATIC

---------------------------------------------------------------

7-1

CHECK THE fAILURE CODE (f-code)

-----------------------------------------------------------

8-1

fAILURE CODE SUMMARY

-----------------------------------------------------------------------------

9-1

CHECKING fLOW CHART BY fAILURE

------------------------------------------

10-1 ~ 10-22

• No display (No power)

----------------------------------------------------------------------------------------------

10-1 ~ 10-4

• No heating (including F9 error)

----------------------------------------------------------------------------------

10-5 ~ 10-8

• Sensing fail (including F1, F2 error)

-------------------------------------------------------------------------

10-13 ~ 10-16

• Oven hot (including F6 error)

----------------------------------------------------------------------------------

10-17 ~ 10-19

• No Key input

---------------------------------------------------------------------------------------------------------------------

10-20

• Oven lamp does not operate

-----------------------------------------------------------------------------------

10-21~10-22

TROUBLE SHOOTING

------------------------------------------------------------------------

11-1 ~ 11-4

EXPLODED VIEW

-------------------------------------------------------------------------------

12-1 ~ 12-6

1-1

GENERAL

IMPORTANT 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

IMPORTANT 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.

IMPORTANT SAFETY INSTRUCTIONS

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

AND TECH SHEET LOCATIONS

Tech Sheet Location

(On Low Rear Cover)

1-5

GENERAL

SPECIFICATIONS

Model Number LRG3081ST LRG3081BD

Category Non Convection

Overall Width

30"

Installation type

Freestanding

Color availability

STS Black Diamond STS

Control Oven Tact Switch

Cooktop Knob

Display LED Green

Electronic clock & timer Yes

Control lock capability Yes

Audible preheat signal Yes

Special function Setting (5 categories)

1. set the hour mode on the clock (12 or 24 hours)

2. adjust the oven temperature

3. activate/deactivate the preheating alarm light

4.set the beeper volume(Hi, Lo, Off)

5. switch the temperature scale between Fahrenheit

and Celsius(°F / °C)

Cooktop Material Enamel

# of element 5 5

Input Rate

NAT / LP

[BTU/hr]

LR 9.1k / 9.1k

RR 5k / 5k

CR 8k / 8k

LF 12k / 9.5k

RF 17k / 10k

Oven Capacity(cu.fe) 5.4

Broil (NAT/ LP)[BTU/hr] 15.5k / 12.5k

Bake (BTU/hr) 19k / 18k

Convection system Yes

# of Racks 2 (standard)

Interior oven light auto / manual

Proof No

Cook & warm No

Favorites No

Door lock out No

Drawer Broiler pan No

Dimensions Type Storage

Oven Interior(W x H x D) 24

1/2

x 19

1/2

x 19

3/8

Exterior - Width 30

Exterior - Height 36 (cooktop), 47 7/16 (backguard top)

Exterior - Depth 26

1/2

(Door), 28

3/4

(with handle)

Power Net weight: lbs (kg) 169.4(76.85kg)

Rating 120V 4.5A

2-1

USING YOUR RANGE

GENERAL INFORMATION

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.

Bake burner

Broil burner

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