EasyManua.ls Logo

LG LRG4111ST - User Manual

LG LRG4111ST
74 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
1
30” Freestanding Gas Single Oven Range
SERVICE MANUAL
MODEL: LRG4111ST
CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL37118357
July, 2016
Printed in Korea
Internal Use Only
Question and Answer IconNeed help?

Do you have a question about the LG LRG4111ST and is the answer not in the manual?

Summary

FORWARD

SAFETY PRECAUTIONS

Safety guidelines for servicing the appliance, including warnings about gas and electrical hazards.

COMPONENT TEST

Component Testing Procedures

Procedures for testing various components like motor, sensor, igniters, and valves.

CONVERSION TO LP GAS

Prepare Range for Conversion

Steps to prepare the appliance before gas conversion.

Gas Pressure Regulator Conversion

Instructions for converting the gas pressure regulator.

COMPOSITION OF CONTROL

Wiring Diagram

Electrical schematic illustrating the appliance's wiring connections.

Control Board Identification

Identification of Main, Touch, NFC, and Buzzer PCBs.

SVC TEST MODE

Sequence of SVC Test Mode

Step-by-step guide to enter and use the Service Test Mode.

Basic Check Summary

Summary of basic checks for common symptoms in SVC Test Mode.

TROUBLESHOOTING

Error Code Diagnosis

Procedure to check and understand appliance error codes.

Troubleshooting Guide

Detailed steps to diagnose and resolve appliance malfunctions.

APPLIANCE SPECIFICATIONS

General & Control Specifications

Overall dimensions, installation, control features, and display types.

Cooktop & Oven Performance Specs

Cooktop burner power, oven capacity, and BTU ratings.

Physical Dimensions & Power Specs

Appliance external dimensions, weight, and electrical specifications.

USING YOUR RANGE

Rating Label Location

Location of the model and serial number rating label for parts ordering.

Functional Operation Modes

Explanation of basic oven modes like Bake, Broil, and Convection.

CONTROL PANEL FEATURES

Oven Function Buttons

Description of buttons for Bake, Roast, Warm, Pizza, and Easy Clean functions.

Oven Control Buttons

Description of buttons for Light, Clock, Settings, Cook Time, and Start Time.

USING YOUR RANGE

Surface Burner Operation

How to turn on and control surface burners, including notes on sparking.

Clock and Timer Settings

Procedures for setting the appliance's clock and timer.

USING YOUR RANGE

Setting Modes and Functions

How to use Warm, Proof, Lockout, Easy Clean, and adjust beeper/units.

Timed & Delayed Cooking

Procedures for setting timed and delayed cooking for Bake, Conv. Bake, and Roast.

COMPONENT ACCESS

Component Locations

Diagram showing the location of major internal components within the range.

COMPONENT ACCESS

Removing Back, Control Cover, Glass Touch Assembly

Step-by-step instructions for removing the back panel, control cover, and glass touch assembly.

COMPONENT ACCESS

Removing Spark Module & Power Control Board

Instructions for removing the spark module and power control board (PCB).

COMPONENT ACCESS

Signal Wire Service Instructions

Information on replacing signal harnesses connecting various PCBs.

COMPONENT ACCESS

Removing the Cooktop Plate

Procedure for removing the cooktop plate.

COMPONENT ACCESS

Removing Cooktop Parts & Gas Valve

Steps to remove cooktop parts including the gas valve.

COMPONENT ACCESS

Removing Ignition Switch & Electrode

Steps to remove the ignition switch and electrode (spark plug).

COMPONENT ACCESS

Removing the Door Switch

Procedure for removing the oven door switch.

COMPONENT ACCESS

Removing Broil Burner Assembly & Igniter

Instructions for removing the broil burner assembly and igniter.

COMPONENT ACCESS

Removing Convection Fan Blade & Motor

Steps to remove the convection fan blade and motor assembly.

COMPONENT ACCESS

Removing Oven Light & Socket Assembly

Procedure for removing the oven light and socket assembly.

COMPONENT ACCESS

Removing Oven Temperature Sensor

Steps to remove the oven temperature sensor.

COMPONENT ACCESS

Removing & Replacing Drawer

Instructions for removing and replacing the storage drawer.

COMPONENT ACCESS

Removing & Replacing Lift-Off Oven Door

Procedure for removing and replacing the oven door.

COMPONENT ACCESS

Removing Oven Door Handle & Glass

Steps to remove the oven door handle and glass components.

COMPONENT ACCESS

Removing Hinge Hanger Assembly

Procedure for removing the oven door hinge hanger assembly.

COMPONENT ACCESS

Removing Oven Door Gasket

Steps to remove and replace the oven door gasket.

COMPONENT ACCESS

Removing a Side Panel

Procedure for removing one of the appliance's side panels.

COMPONENT ACCESS

Removing Oven Valve & Gas Pressure Regulator

Instructions for removing the oven valve (safety valve) and gas pressure regulator.

COMPONENT TEST

Convection Motor Testing

Test procedures and expected results for the convection motor.

COMPONENT TEST

Oven Sensor & Door Switch Testing

Test procedures for oven sensor and door switch.

Oven Lamp & Igniter Type-1 Testing

Test procedures for oven lamp and Igniter Type-1.

COMPONENT TEST

Igniter Type-2 & Oven Valve Testing

Test procedures for Igniter Type-2 and oven safety valve.

Ignition Switch Testing

Test procedures for the ignition switch.

CONVERSION TO LP GAS

Prepare Range for Conversion

Steps to prepare the appliance before gas conversion.

Gas Pressure Regulator Conversion

Instructions for converting the gas pressure regulator.

CONVERSION TO LP GAS

Converting Surface Burners

Steps to convert surface burners to LP gas using orifice spuds.

LP Gas Orifice Locations

Diagram showing LP orifice locations for each burner.

CONVERSION TO LP GAS

Natural Gas Orifice Specifications

Specifications for natural gas orifices including BTU rate and orifice code.

Natural Gas Orifice Locations

Diagram showing natural gas orifice locations for each burner.

CONVERSION TO LP GAS

Convert Oven Burner Orifices (Bake)

Steps to convert bake burner orifices for LP gas.

Convert Oven Burner Orifices (Broil)

Steps to convert broil burner orifices for LP gas.

CONVERSION TO LP GAS

Adjusting Air Shutter & Flame Quality

Adjusting air shutter and checking flame quality for LP gas.

Adjusting Low Flame Setting

Procedure to adjust the low flame setting for surface burners.

COMPOSITION OF CONTROL

Wiring Diagram

Electrical schematic illustrating the appliance's wiring connections.

COMPOSITION OF CONTROL

Control Board Identification

Identification of Main, Touch, NFC, and Buzzer PCBs.

COMPOSITION OF CONTROL

Main PCB Details

Detailed view and connector labels for the Main PCB.

Touch PCB Details

Detailed view of the Touch PCB.

COMPOSITION OF CONTROL

NFC PCB Details

Detailed view of the NFC PCB.

Buzzer PCB Details

Detailed view of the Buzzer PCB.

SVC TEST MODE

Sequence of SVC Test Mode

Step-by-step guide to enter and use the Service Test Mode.

SVC TEST MODE

Relay Operation Sequence

Table showing the sequence of relay operations in SVC Test Mode.

SVC TEST MODE

Basic Check Summary

Summary of basic checks for common symptoms in SVC Test Mode.

TROUBLESHOOTING

Check the Failure Code

Procedure to display and check error codes on the appliance.

TROUBLESHOOTING

Failure Code Summary

Table listing error codes, their descriptions, and check points.

TROUBLESHOOTING

Troubleshooting Power;Display Issues

Steps to troubleshoot power failure and no display symptoms.

TROUBLESHOOTING

Power Failure Troubleshooting Flowchart

Flowchart for diagnosing power failure and no display issues.

TROUBLESHOOTING

Troubleshooting No Heating Issues

Steps to troubleshoot 'No heating' and 'F9' error codes.

TROUBLESHOOTING

Heating & Sensor Issue Troubleshooting

Steps to troubleshoot heating/sensor issues by checking wiring, igniter, and sensor.

TROUBLESHOOTING

Oven Not Heating (F9) Troubleshooting

Detailed steps for diagnosing F9 error, checking connectors and igniters.

TROUBLESHOOTING

Igniter Resistance Check

Checking the resistance of Norton and SIC igniters.

Thermistor Check for F9 Error

Checking thermistor resistance and using test mode for F9 error.

TROUBLESHOOTING

Troubleshooting Sensing Fail (F1, F2)

Steps to troubleshoot sensing fail errors by checking wiring and sensor.

TROUBLESHOOTING

Sensing Fail Troubleshooting Flowchart

Flowchart for diagnosing sensing fail errors (F1, F2) by checking connectors and thermistor.

TROUBLESHOOTING

Thermistor Value Check in Test Mode

Using test mode to check thermistor value for potential Main PCB replacement.

TROUBLESHOOTING

Troubleshooting Oven Hot (F6)

Steps to troubleshoot Oven Hot (F6) by checking relay and sensor resistance.

TROUBLESHOOTING

Oven Hot (F6) Sensor Resistance Check

Checking oven sensor resistance for Oven Hot (F6) error.

TROUBLESHOOTING

Thermistor & Igniter Relay Check

Checking thermistor and igniter relay resistance for F6 error.

TROUBLESHOOTING

DLB Relay & Thermistor Check for F6

Checking DLB relay and thermistor value in test mode for F6 error.

TROUBLESHOOTING

Troubleshooting Convection Fan Not Working (F7)

Steps to troubleshoot convection fan not working (F7) by checking relay and motor.

TROUBLESHOOTING

Fan Motor Resistance Check

Checking the resistance of the fan motor (high and low speeds).

Fan Motor Relay Check

Measuring the resistance of fan motor relays (RY61, RY62).

TROUBLESHOOTING

Convection Fan Connector Check

Checking convection fan connectors and harnesses for loose connections.

TROUBLESHOOTING

Key Input & F3 Error Troubleshooting

Steps to troubleshoot key input issues and F3 error by checking wiring.

TROUBLESHOOTING

F3 Error Troubleshooting Flowchart

Flowchart for F3 error, checking Touch PCB to Main PCB connection.

EXPLODED VIEW

Introduction to Exploded Views

Overview of model and product codes, and introduction to parts diagrams.

EXPLODED VIEW

Door Parts Diagram

Exploded view of the appliance's door components.

EXPLODED VIEW

Controller Parts Diagram

Exploded view of the appliance's control panel and related parts.

EXPLODED VIEW

Cooktop Parts Diagram

Exploded view of the appliance's cooktop components.

EXPLODED VIEW

Drawer Parts Diagram

Exploded view of the appliance's drawer and slide components.

EXPLODED VIEW

Cavity Parts Diagram

Exploded view of the appliance's oven cavity and internal parts.

Summary

FORWARD

SAFETY PRECAUTIONS

Safety guidelines for servicing the appliance, including warnings about gas and electrical hazards.

COMPONENT TEST

Component Testing Procedures

Procedures for testing various components like motor, sensor, igniters, and valves.

CONVERSION TO LP GAS

Prepare Range for Conversion

Steps to prepare the appliance before gas conversion.

Gas Pressure Regulator Conversion

Instructions for converting the gas pressure regulator.

COMPOSITION OF CONTROL

Wiring Diagram

Electrical schematic illustrating the appliance's wiring connections.

Control Board Identification

Identification of Main, Touch, NFC, and Buzzer PCBs.

SVC TEST MODE

Sequence of SVC Test Mode

Step-by-step guide to enter and use the Service Test Mode.

Basic Check Summary

Summary of basic checks for common symptoms in SVC Test Mode.

TROUBLESHOOTING

Error Code Diagnosis

Procedure to check and understand appliance error codes.

Troubleshooting Guide

Detailed steps to diagnose and resolve appliance malfunctions.

APPLIANCE SPECIFICATIONS

General & Control Specifications

Overall dimensions, installation, control features, and display types.

Cooktop & Oven Performance Specs

Cooktop burner power, oven capacity, and BTU ratings.

Physical Dimensions & Power Specs

Appliance external dimensions, weight, and electrical specifications.

USING YOUR RANGE

Rating Label Location

Location of the model and serial number rating label for parts ordering.

Functional Operation Modes

Explanation of basic oven modes like Bake, Broil, and Convection.

CONTROL PANEL FEATURES

Oven Function Buttons

Description of buttons for Bake, Roast, Warm, Pizza, and Easy Clean functions.

Oven Control Buttons

Description of buttons for Light, Clock, Settings, Cook Time, and Start Time.

USING YOUR RANGE

Surface Burner Operation

How to turn on and control surface burners, including notes on sparking.

Clock and Timer Settings

Procedures for setting the appliance's clock and timer.

USING YOUR RANGE

Setting Modes and Functions

How to use Warm, Proof, Lockout, Easy Clean, and adjust beeper/units.

Timed & Delayed Cooking

Procedures for setting timed and delayed cooking for Bake, Conv. Bake, and Roast.

COMPONENT ACCESS

Component Locations

Diagram showing the location of major internal components within the range.

COMPONENT ACCESS

Removing Back, Control Cover, Glass Touch Assembly

Step-by-step instructions for removing the back panel, control cover, and glass touch assembly.

COMPONENT ACCESS

Removing Spark Module & Power Control Board

Instructions for removing the spark module and power control board (PCB).

COMPONENT ACCESS

Signal Wire Service Instructions

Information on replacing signal harnesses connecting various PCBs.

COMPONENT ACCESS

Removing the Cooktop Plate

Procedure for removing the cooktop plate.

COMPONENT ACCESS

Removing Cooktop Parts & Gas Valve

Steps to remove cooktop parts including the gas valve.

COMPONENT ACCESS

Removing Ignition Switch & Electrode

Steps to remove the ignition switch and electrode (spark plug).

COMPONENT ACCESS

Removing the Door Switch

Procedure for removing the oven door switch.

COMPONENT ACCESS

Removing Broil Burner Assembly & Igniter

Instructions for removing the broil burner assembly and igniter.

COMPONENT ACCESS

Removing Convection Fan Blade & Motor

Steps to remove the convection fan blade and motor assembly.

COMPONENT ACCESS

Removing Oven Light & Socket Assembly

Procedure for removing the oven light and socket assembly.

COMPONENT ACCESS

Removing Oven Temperature Sensor

Steps to remove the oven temperature sensor.

COMPONENT ACCESS

Removing & Replacing Drawer

Instructions for removing and replacing the storage drawer.

COMPONENT ACCESS

Removing & Replacing Lift-Off Oven Door

Procedure for removing and replacing the oven door.

COMPONENT ACCESS

Removing Oven Door Handle & Glass

Steps to remove the oven door handle and glass components.

COMPONENT ACCESS

Removing Hinge Hanger Assembly

Procedure for removing the oven door hinge hanger assembly.

COMPONENT ACCESS

Removing Oven Door Gasket

Steps to remove and replace the oven door gasket.

COMPONENT ACCESS

Removing a Side Panel

Procedure for removing one of the appliance's side panels.

COMPONENT ACCESS

Removing Oven Valve & Gas Pressure Regulator

Instructions for removing the oven valve (safety valve) and gas pressure regulator.

COMPONENT TEST

Convection Motor Testing

Test procedures and expected results for the convection motor.

COMPONENT TEST

Oven Sensor & Door Switch Testing

Test procedures for oven sensor and door switch.

Oven Lamp & Igniter Type-1 Testing

Test procedures for oven lamp and Igniter Type-1.

COMPONENT TEST

Igniter Type-2 & Oven Valve Testing

Test procedures for Igniter Type-2 and oven safety valve.

Ignition Switch Testing

Test procedures for the ignition switch.

CONVERSION TO LP GAS

Prepare Range for Conversion

Steps to prepare the appliance before gas conversion.

Gas Pressure Regulator Conversion

Instructions for converting the gas pressure regulator.

CONVERSION TO LP GAS

Converting Surface Burners

Steps to convert surface burners to LP gas using orifice spuds.

LP Gas Orifice Locations

Diagram showing LP orifice locations for each burner.

CONVERSION TO LP GAS

Natural Gas Orifice Specifications

Specifications for natural gas orifices including BTU rate and orifice code.

Natural Gas Orifice Locations

Diagram showing natural gas orifice locations for each burner.

CONVERSION TO LP GAS

Convert Oven Burner Orifices (Bake)

Steps to convert bake burner orifices for LP gas.

Convert Oven Burner Orifices (Broil)

Steps to convert broil burner orifices for LP gas.

CONVERSION TO LP GAS

Adjusting Air Shutter & Flame Quality

Adjusting air shutter and checking flame quality for LP gas.

Adjusting Low Flame Setting

Procedure to adjust the low flame setting for surface burners.

COMPOSITION OF CONTROL

Wiring Diagram

Electrical schematic illustrating the appliance's wiring connections.

COMPOSITION OF CONTROL

Control Board Identification

Identification of Main, Touch, NFC, and Buzzer PCBs.

COMPOSITION OF CONTROL

Main PCB Details

Detailed view and connector labels for the Main PCB.

Touch PCB Details

Detailed view of the Touch PCB.

COMPOSITION OF CONTROL

NFC PCB Details

Detailed view of the NFC PCB.

Buzzer PCB Details

Detailed view of the Buzzer PCB.

SVC TEST MODE

Sequence of SVC Test Mode

Step-by-step guide to enter and use the Service Test Mode.

SVC TEST MODE

Relay Operation Sequence

Table showing the sequence of relay operations in SVC Test Mode.

SVC TEST MODE

Basic Check Summary

Summary of basic checks for common symptoms in SVC Test Mode.

TROUBLESHOOTING

Check the Failure Code

Procedure to display and check error codes on the appliance.

TROUBLESHOOTING

Failure Code Summary

Table listing error codes, their descriptions, and check points.

TROUBLESHOOTING

Troubleshooting Power;Display Issues

Steps to troubleshoot power failure and no display symptoms.

TROUBLESHOOTING

Power Failure Troubleshooting Flowchart

Flowchart for diagnosing power failure and no display issues.

TROUBLESHOOTING

Troubleshooting No Heating Issues

Steps to troubleshoot 'No heating' and 'F9' error codes.

TROUBLESHOOTING

Heating & Sensor Issue Troubleshooting

Steps to troubleshoot heating/sensor issues by checking wiring, igniter, and sensor.

TROUBLESHOOTING

Oven Not Heating (F9) Troubleshooting

Detailed steps for diagnosing F9 error, checking connectors and igniters.

TROUBLESHOOTING

Igniter Resistance Check

Checking the resistance of Norton and SIC igniters.

Thermistor Check for F9 Error

Checking thermistor resistance and using test mode for F9 error.

TROUBLESHOOTING

Troubleshooting Sensing Fail (F1, F2)

Steps to troubleshoot sensing fail errors by checking wiring and sensor.

TROUBLESHOOTING

Sensing Fail Troubleshooting Flowchart

Flowchart for diagnosing sensing fail errors (F1, F2) by checking connectors and thermistor.

TROUBLESHOOTING

Thermistor Value Check in Test Mode

Using test mode to check thermistor value for potential Main PCB replacement.

TROUBLESHOOTING

Troubleshooting Oven Hot (F6)

Steps to troubleshoot Oven Hot (F6) by checking relay and sensor resistance.

TROUBLESHOOTING

Oven Hot (F6) Sensor Resistance Check

Checking oven sensor resistance for Oven Hot (F6) error.

TROUBLESHOOTING

Thermistor & Igniter Relay Check

Checking thermistor and igniter relay resistance for F6 error.

TROUBLESHOOTING

DLB Relay & Thermistor Check for F6

Checking DLB relay and thermistor value in test mode for F6 error.

TROUBLESHOOTING

Troubleshooting Convection Fan Not Working (F7)

Steps to troubleshoot convection fan not working (F7) by checking relay and motor.

TROUBLESHOOTING

Fan Motor Resistance Check

Checking the resistance of the fan motor (high and low speeds).

Fan Motor Relay Check

Measuring the resistance of fan motor relays (RY61, RY62).

TROUBLESHOOTING

Convection Fan Connector Check

Checking convection fan connectors and harnesses for loose connections.

TROUBLESHOOTING

Key Input & F3 Error Troubleshooting

Steps to troubleshoot key input issues and F3 error by checking wiring.

TROUBLESHOOTING

F3 Error Troubleshooting Flowchart

Flowchart for F3 error, checking Touch PCB to Main PCB connection.

EXPLODED VIEW

Introduction to Exploded Views

Overview of model and product codes, and introduction to parts diagrams.

EXPLODED VIEW

Door Parts Diagram

Exploded view of the appliance's door components.

EXPLODED VIEW

Controller Parts Diagram

Exploded view of the appliance's control panel and related parts.

EXPLODED VIEW

Cooktop Parts Diagram

Exploded view of the appliance's cooktop components.

EXPLODED VIEW

Drawer Parts Diagram

Exploded view of the appliance's drawer and slide components.

EXPLODED VIEW

Cavity Parts Diagram

Exploded view of the appliance's oven cavity and internal parts.

LG LRG4111ST Specifications

General IconGeneral
TypeFreestanding
ColorStainless Steel
Oven Capacity5.4 cu. ft.
Number of Burners5
Burner TypeSealed
Self-CleaningYes
Convection OvenYes
Wi-Fi ConnectivityNo
Fuel TypeGas
Width30 in

Related product manuals