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LG WM3998H A Series - User Manual

LG WM3998H A Series
60 pages
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OWNER'S MANUAL
WASHER AND DRYER
Read this owner's manual thoroughly before operating the
appliance and keep it handy for reference at all times.
ENGLISH
WM3998HBA
MFL71728991
Rev.00_081221
www.lg.com
Copyright © 2021 LG Electronics Inc. All Rights Reserved.

Questions and Answers

  • M
    Mr. James MitchellSep 23, 2025
    Why does my LG WM3998H A Washer/Dryer have an odor?
    • D
      David ContrerasSep 23, 2025
      Some odor in your LG Washer/Dryer is caused by the rubber attached to the washing machine. This odor is normal for new rubber and will disappear after the machine has been run a few times.
  • M
    martinkerriAug 23, 2025
    What to do if my LG Washer/Dryer displays a dE, dE1, dEz, dE4 DOOR OPEN ERROR?
    • G
      grantjoshuaAug 23, 2025
      If your LG Washer/Dryer shows a dE, dE1, dEz, dE4 DOOR OPEN ERROR, it means the door is not secured. Make sure to close and secure the door properly.
  • J
    Jason DuranAug 25, 2025
    Why does water in my LG Washer/Dryer not drain or drain slowly?
    • L
      Linda BranchAug 26, 2025
      If the water in your LG Washer/Dryer does not drain or drains slowly, the drain hose may be kinked, pinched, or clogged. Ensure that the drain hose is free of clogs or kinks and is not pinched behind or under the washer.
  • S
    Sarah SanchezAug 27, 2025
    What to do if my LG Washer/Dryer shows an LE MOTOR LOCKED ERROR?
    • M
      Mark CurryAug 27, 2025
      If your LG Washer/Dryer displays an LE MOTOR LOCKED ERROR, a motor error has occurred. Allow the washer to stand for 30 minutes and then restart the cycle.
  • S
    Scott LongAug 27, 2025
    What to do if my LG WM3998H A Washer/Dryer shows an IE Inlet Error?
    • E
      Erin KellerAug 27, 2025
      If your LG Washer/Dryer displays an IE Inlet Error, several issues could be the cause. First, ensure that the water supply faucets are fully open. Next, check the water inlet hoses to make sure they are not kinked, pinched, or crushed behind or under the washer. Also, the water inlet filters might be clogged, so they should be cleaned. Low water supply pressure to the faucet or house could also be the problem, so check another faucet to ensure adequate water pressure. Finally, the error could be caused by water supply connected with leak-limiting hoses, which are not recommended.
  • J
    Jeffrey JonesSep 18, 2025
    Why is my LG WM3998H A causing staining on my clothes?
    • P
      patrick05Sep 18, 2025
      Staining from your LG Washer/Dryer can occur if bleach or softener is dispensed too soon. Always measure bleach, and never use more than 1 cup.
  • B
    Bradley WatkinsSep 15, 2025
    Why is bleach not dispensing in my LG Washer/Dryer?
    • C
      Cody LevineSep 15, 2025
      If bleach is not dispensing in your LG Washer/Dryer, the bleach dispenser cover may not be properly installed (on some models). Make sure that the bleach cover is properly installed and snapped into place before the beginning of the cycle.
  • P
    Paul MorseSep 16, 2025
    What does the tcL TUB CLEAN ALARM mean on my LG WM3998H A Washer/Dryer?
    • L
      Lisa MooreSep 16, 2025
      The tcL TUB CLEAN ALARM indicates that it is time to run the Tub Clean cycle to clean the washer drum.
  • C
    Cassandra LewisSep 6, 2025
    Why does my LG Washer/Dryer make a thumping sound?
    • K
      Kyle MurilloSep 7, 2025
      A thumping sound in your LG Washer/Dryer can be normal with heavy wash loads. However, if the sound continues, the washer is probably out of balance, so stop it and redistribute the wash load.
  • J
    Jacqueline BarkerSep 3, 2025
    Why is my LG WM3998H A making a rattling and clanking noise?
    • J
      john62Sep 4, 2025
      A rattling and clanking noise in your LG Washer/Dryer may be due to foreign objects, such as keys, coins, or safety pins, in the drum or pump. Stop the washer and check the drum and the drain filter for any foreign objects.

Summary

IMPORTANT SAFETY INSTRUCTIONS

Safety Messages and Warnings

General guidance on safety messages, warning statements, and their meaning.

Installation Safety Procedures

Safety guidelines for installing the washer, including grounding.

Operation Safety Precautions

Safety measures to follow during normal operation of the appliance.

Maintenance and Cleaning Safety

Safety guidelines for cleaning and maintaining the washer.

CAUTION STATEMENTS

Installation and Operation Cautions

Precautions to prevent minor injury or damage during installation and operation.

PRODUCT OVERVIEW

Product Features and Components

Overview of the appliance's main features and physical components.

Accessories and Specifications

Lists included/optional accessories and key product specifications.

INSTALLATION

Installation Preparation and Location

Steps before installing, including choosing a location and unpacking materials.

Hose Connections and Leveling

Guidance on connecting water inlet/drain hoses and leveling the washer.

Final Installation and Testing

Final checks, power connection, and running a test cycle.

OPERATION

Before Operation Overview

Initial steps, safety warnings, and overview before operating the appliance.

Sorting, Loading, and Detergent Use

Guidelines for sorting laundry, loading, and using detergents and dispensers.

Control Panel Operations

How to use the control panel, select cycles, and modify settings.

Wash Cycles Guide

Explanation of available wash cycles and their default settings.

Cycle Modifiers and Dry Cycles

How to adjust wash settings and general drying advice.

Options and Extra Functions

Using Steam, Fresh Care, Delay Wash, and other extra functions.

SMART FUNCTIONS

LG ThinQ Application and Diagnosis

Using the ThinQ app for remote control, monitoring, and diagnosis.

Wireless Module and Compliance

Wireless LAN specifications, FCC, and Industry Canada compliance notices.

MAINTENANCE

Regular Cleaning Procedures

Routine cleaning of the exterior, door seal, and drum.

Periodic Maintenance and Filter Cleaning

Tasks like dispenser cleaning, mineral removal, and filter maintenance.

Care in Cold Climates

Washer Storage and Frozen Hose Procedures

Protecting the washer from freezing and thawing frozen hoses.

TROUBLESHOOTING

Pre-Service Checks and Error Messages

Preliminary checks, FAQs, and troubleshooting common error codes.

Troubleshooting Noises and Operations

Identifying and resolving noises, operational issues, and performance problems.

LIMITED WARRANTY

USA Warranty Terms and Conditions

Details of the limited warranty, terms, and dispute resolution for USA.

Canada Warranty Terms and Conditions

Details of the limited warranty, terms, and dispute resolution for Canada.

Arbitration Procedures and Opt-Out

Details on arbitration rules, fees, location, and opting out of the process.

LG WM3998H A Series Specifications

General IconGeneral
Capacity (Wash)4.5 cu. ft.
Capacity (Dry)4.5 cu. ft.
Energy Star CertifiedYes
ColorWhite
Wi-Fi ConnectivityYes
SteamYes
Washer TypeFront Load
TypeWasher/Dryer Combo
Wash CyclesDelicates, Heavy Duty, Normal
Dry CyclesDelicates, Heavy Duty, Normal
Dryer TypeCondenser
Control TypeTouch Controls

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