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LG LRGL5821S - User Manual

LG LRGL5821S
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Condential
MFL71688306_Rev00. 05242020
30" FREESTANDING
GAS RANGE
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MODEL: LRGL5821S
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication,
modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the
prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.
Copyright © 2020 LG Electronics Inc. All rights reserved. Only training and service purposes

Table of Contents

Questions and Answers

  • T
    tammy08Aug 19, 2025
    What to do if my LG LRGL5821S clock and timer does not work?
    • M
      Matthew AshleyAug 19, 2025
      If the clock and timer on your LG range aren't working, there are a few potential causes. First, ensure the range is fully plugged into a working electrical outlet. Second, check your home's fuse box or circuit breaker to see if a fuse has blown or a breaker has tripped, and replace the fuse or reset the breaker if necessary. Finally, the oven controls might be set improperly. Consult the “USING THE CLOCK AND TIMER” section in your user manual for instructions.
  • K
    kenneth87Aug 21, 2025
    How to fix LG LRGL5821S Ranges that is not level?
    • M
      Michaela KelleyAug 21, 2025
      An LG range might not be level due to poor installation, an uneven floor, a sagging or sloping floor, or kitchen cabinet alignment. To correct this: * Place an oven rack in the center of the oven and put a level on the rack. Adjust the leveling legs at the base of the range until the rack is level. * Ensure the floor is level, strong, and stable enough to support the range. * Contact a carpenter to address sagging or sloping floors. * Make sure your cabinets are square and provide sufficient clearance for the range.
  • M
    mitchellginaAug 23, 2025
    Why does my LG LRGL5821S Ranges surface burners light but the oven does not?
    • W
      wgregoryAug 23, 2025
      If the surface burners on your LG range light but the oven does not, the oven gas shut-off valve may have been accidentally moved during cleaning or moving. Ensure that the oven gas shut-off valve is fully open.
  • D
    Dr. Laura HughesAug 26, 2025
    Why are my LG LRGL5821S top burners not lighting or burning evenly?
    • G
      greenrobinAug 26, 2025
      There are several reasons why the top burners on your LG range might not light or burn evenly. It could be that the range is not completely plugged into the electrical outlet. Ensure the electrical plug is fully inserted into a properly grounded outlet. Another cause might be clogged burner slits. Try removing the burners and cleaning them, paying attention to the electrode area for any food or grease. Refer to the “CARE AND CLEANING OF THE RANGE” section in your user manual. Finally, improper burner assembly could be the issue. Ensure all burner parts are correctly installed, consulting the “CARE AND CLEANING OF THE RANGE” section for guidance.
  • T
    Teresa BrownAug 27, 2025
    What to do if my LG LRGL5821S oven light does not work?
    • C
      colleen18Aug 27, 2025
      If the oven light in your LG range isn't working, the bulb may be loose or defective. Try tightening or replacing the bulb. Also, ensure that the range is properly plugged into a functioning electrical outlet.
  • C
    Chad Becker Jr.Aug 29, 2025
    Why is my LG LRGL5821S food not baking or roasting properly?
    • C
      Connie LarsonAug 29, 2025
      There are several reasons why food might not bake or roast properly in your LG range. These include improper oven control settings, incorrect rack position, using incorrect cookware or cookware of an improper size, a thermostat that needs adjustment, the clock not being set correctly, or improper use of aluminum foil in the oven. Consult the “USING THE OVEN,” “HOW TO ADJUST THE OVEN THERMOSTAT,” “USING THE CLOCK AND TIMER” and “CARE AND CLEANING OF THE RANGE” sections in your user guide.
  • Z
    Zoe HoustonSep 1, 2025
    What to do if my LG LRGL5821S power outage makes clock flash?
    • C
      chad81Sep 1, 2025
      If you experience a power outage and the clock on your LG range is flashing, it indicates that the clock needs to be reset. If the oven was in use during the outage, you'll need to clear the oven by touching the “CLEAR OFF” pad, then reset the clock and any cooking functions you were using.
  • Z
    Zachary AtkinsonSep 3, 2025
    Why is my LG LRGL5821S Ranges food not broiling properly in the oven?
    • B
      Brenda RasmussenSep 3, 2025
      Several factors can affect broiling performance in your LG range. These include improper oven control settings (make sure you touch the “BROIL HI/LO” pad), the oven door not being closed, incorrect rack position, cooking food in a hot pan, using cookware not suited for broiling, or improper use of aluminum foil on the broiling pan and grid. Refer to the “USING THE OVEN” and “BROILING GUIDE” sections in your user manual. Be sure to use the broiling pan and grid that came with your range and ensure they are cool.
  • D
    Dominique ReyesSep 5, 2025
    How to fix LG LRGL5821S Ranges oven temperature if it is too hot or too cold?
    • D
      Dr. Julia MunozSep 5, 2025
      If the oven temperature in your LG range is consistently too hot or too cold, the oven thermostat may need adjustment. Refer to the “HOW TO ADJUST THE OVEN THERMOSTAT” section in your user guide.
  • J
    jasonberrySep 7, 2025
    Why is my LG LRGL5821S drawer not sliding smoothly or drags?
    • N
      natasha46Sep 7, 2025
      If the drawer on your LG range does not slide smoothly, it may be out of alignment or overloaded. Try fully extending the drawer and pushing it all the way in. See the “CARE AND CLEANING OF THE RANGE” section in your user guide. Also, reduce the weight in the drawer or redistribute the contents to balance the load.

Summary

Forward and Safety Precautions

Safety Precautions

Essential safety warnings and precautions for servicing the appliance.

General Safety Instructions

Key Safety Guidelines

Covers safety alerts, anti-tip, hot surfaces, child safety, and fire prevention.

Model & Serial Number Label and Tech Sheet Locations

Appliance Specifications

Overall, Control, Cooktop, Oven, Drawer, Power Specs

Details on appliance dimensions, controls, cooktop, oven, drawer, and power requirements.

General Operation Information

Rating Label and Functional Modes

Information on rating label, bake mode, broil mode, and cooking guide.

Control Panel Features

Control Panel Layout and Button Functions

Diagram of control panel and explanation of button functions.

Using Your Range: Operations

Basic Oven and Burner Operations

Instructions for surface burners, clock, timer, light, and temperature adjustment.

Using Your Range: Advanced Operations

Advanced Oven Functions

Covers preheat alarm, beeper volume, temp units, timed cook, and clock modes.

Component Access and Locations

Component Locations Diagram

Diagram showing the location of major internal components.

Component Access: Removal Procedures

Removing Control Panel and PCB

Steps for removing back cover, controller assembly, and power control board.

Component Access: Cooktop Parts

Cooktop Plate, Spark Module, and Burners

Procedures for removing cooktop plate, spark module, and burner assemblies.

Component Access: Oven and Drawer Parts

Oven Bottom, Light, Sensor, Door, and Drawer

Procedures for accessing and removing oven bottom, light, sensor, door, and drawer.

Component Access: Other Parts

Door Gasket, Side Panel, Valve, Regulator

Procedures for removing door gasket, side panel, oven valve, and gas regulator.

Component Test Procedures

Testing Switches, Sensors, and Igniters

Methods for testing micro switches, oven sensors, door switches, lamps, igniters, valves, and ignition switches.

LP Gas Conversion

Conversion Steps and Checks

Covers preparation, regulator, burner orifice, and air shutter adjustments for LP conversion.

Control System Components

PCB and Module Details

Overview and details of the Main PCB, Tact/Display PCB, and LED Module.

Diagnostic Schematics and Failure Codes

Schematics, F-Codes, and Summaries

Includes diagnostic schematics, F-code checking, and a summary of failure codes.

Troubleshooting Flowcharts

Flowcharts for Common Failures

Step-by-step flowcharts for diagnosing issues like no display, no heat, sensing errors, and oven hot.

Troubleshooting Common Problems

Problem;Cause;Solution Guide

Lists common issues, their causes, and suggested solutions for the appliance.

Exploded Views of Appliance Parts

Parts Diagrams by Section

Exploded views of Door, Cooktop, Controller, Drawer, and Cavity parts.

LG LRGL5821S Specifications

General IconGeneral
ColorStainless Steel
Total Oven Capacity5.8 cu. ft.
Number of Burners5
Self-CleaningYes
Convection OvenYes
Wi-Fi ConnectivityYes
Width30 inches

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