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LG WM3555H A Series - User Manual

LG WM3555H A Series
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OWNER'S MANUAL
WASHER & DRYER
Read this owner's manual thoroughly before operating the
appliance and keep it handy for reference at all times.
ENGLISH
WM3555H*A
MFL71521479
Rev.01_022521
www.lg.com
Copyright © 2020-2021 LG Electronics Inc. All Rights Reserved.

Table of Contents

Questions and Answers

  • R
    Roger AndersonAug 3, 2025
    Why is water draining slowly from my LG Washer/Dryer?
    • L
      Lauren EverettAug 3, 2025
      If water is draining slowly from your LG Washer/Dryer, check the drain hose for clogs, kinks, or pinches behind or under the washer. Also, make sure that the end of the drain hose is not more than 96 inches (2.4 m) above the bottom of the washer; if it is, lower it.
  • A
    April WilkersonAug 7, 2025
    How to fix the IE inlet error on my LG Washer/Dryer?
    • L
      lisa86Aug 7, 2025
      To fix the IE inlet error on your LG Washer/Dryer, ensure that the water supply faucets are fully open. Check the water inlet hoses for kinks, pinches, or crushing behind or under the washer. Clean the water inlet filters. Verify that the water supply pressure to the faucet or house is adequate by checking another faucet. Disconnect the water inlet hoses and flush out any dirt. Note that using leak-limiting hoses is not recommended as they can falsely trip and prevent filling.
  • P
    paynepaulAug 11, 2025
    What does the OE water outlet error mean on my LG WM3555H A and how do I fix it?
    • R
      robertjosephAug 11, 2025
      The OE water outlet error on your LG Washer/Dryer indicates a drainage issue. Ensure that the drain hose is free of clogs or kinks and is not pinched behind or under the washer. Also, verify that the end of the drain hose is not more than 96 inches (2.4 m) above the bottom of the washer and adjust if necessary.
  • P
    Patrick SnyderAug 15, 2025
    Why won't my LG WM3555H A start?
    • K
      Kathleen BushAug 15, 2025
      Your LG Washer/Dryer might not start due to several reasons. First, ensure the power cord is securely plugged into an electrical outlet. Check if the circuit breaker or fuse has tripped or blown and reset or replace it if necessary. Make sure the water supply is turned on fully at both hot and cold faucets. Also, confirm that you've properly set the cycle, closed the door completely, and pressed the Start/Pause button. If the control panel is off, press the Power button to turn on the washer. In case of extremely low water pressure, check another faucet in the house. If the washer is too cold, allow it to warm up before turning it on.
  • J
    Jenna GarrettAug 19, 2025
    Why is detergent not dispensing correctly in my LG WM3555H A?
    • S
      smithallenAug 19, 2025
      If detergent is not dispensing correctly in your LG Washer/Dryer, it could be due to several factors. Ensure that you are placing detergent and additives in the correct dispenser compartments and that the dispenser drawer is fully closed before starting the cycle. Using too much detergent can also cause issues; use the amount recommended by the manufacturer and consider diluting it with water to the maximum fill line to prevent clogging. Insufficient water supply can also be a factor, so make sure both hot and cold water faucets are fully open. Note that a small amount of detergent residue is normal, but if it builds up, refer to the cleaning instructions.
  • J
    Jose NicholsAug 23, 2025
    What to do if my LG WM3555H A Washer/Dryer is not filling with water properly?
    • V
      Vanessa JeffersonAug 25, 2025
      If your LG Washer/Dryer isn't filling properly, first ensure that both the hot and cold water faucets are turned on all the way. Check that the inlet hoses are not kinked or clogged. Also, make sure the inlet filters on the fill valves are not clogged. Close the door completely, ensuring nothing obstructs it. Note that this high-efficiency (HE) washer may have different water level settings than conventional washers, and the water will not normally cover the clothes.
  • S
    Sherry SmithAug 28, 2025
    How to stop my LG Washer/Dryer from making loud banging noises when filling with water?
    • L
      Latoya EvansAug 28, 2025
      Loud banging noises while your LG Washer/Dryer is filling with water can be due to high household water supply pressure. Adjust the household water supply regulator to a lower pressure or contact a plumber. For best results, install water hammer arrestors (purchased separately at a hardware or home improvement store) between the fill hose and the washer.

Summary

IMPORTANT SAFETY INSTRUCTIONS

Safety Messages and Warning Statements

General safety advice, alert symbols, and detailed warnings for installation and operation.

Grounding and Caution Statements

Procedures for proper grounding and general caution statements to reduce injury or damage.

PRODUCT OVERVIEW

Product Features and Components

Description of key product components shown in diagrams with numbered labels.

Accessories and Specifications

Lists included/required accessories and technical product details like dimensions and weight.

INSTALLATION GUIDE

Before Installing

Overview of pre-installation steps and critical warnings.

Location, Flooring, and Power Outlet Requirements

Requirements for installation site, flooring, and electrical outlet.

Unpacking and Removing Shipping Material

Steps to safely remove packing and shipping materials.

Connecting Water Inlet Hoses

Instructions for connecting water supply hoses to faucets and washer.

Connecting the Drain Hose

Procedures for connecting the drain hose to a standpipe or laundry tub.

Leveling the Washer and Using Non-Skid Pads

Steps to ensure the washer is stable and level, including pad use.

Final Installation Checks and Testing

Verifying proper installation and performing a test cycle.

OPERATION

Before Use and Operation Overview

Initial steps and safety checks before operating the washer.

Sorting Laundry and Fabric Care

Guidelines for sorting clothes and understanding fabric care labels.

Loading the Washer and General Tips

Proper laundry loading techniques and general operational tips.

Adding Cleaning Products and Dispenser Use

Instructions on using detergent, other agents, and the dispenser.

CONTROL PANEL

Control Panel Features and Display Indicators

Overview of buttons, display, and indicators on the control panel.

WASH CYCLES

Cycle Guide and Descriptions

How to select and understand various wash cycles for different loads.

CYCLE MODIFIERS AND DRY CYCLES

Adjusting Settings and Drying Tips

How to adjust settings, general drying advice, and specific material care.

Using Dry Cycles and Functions

How to select and use different drying cycles and functions.

OPTIONS AND EXTRA FUNCTIONS

Steam, Wrinkle Care, and Waterless Dry Options

Using special options for steam, wrinkle reduction, and waterless drying.

Advanced Cycle Options and Features

Explains various advanced cycle options like pre-wash, Wi-Fi, and control lock.

SMART FUNCTIONS

Using LG ThinQ Application

How to use the LG ThinQ app for smart features and remote control.

Smart Diagnosis Function

How to use the Smart Diagnosis feature for troubleshooting and diagnostics.

MAINTENANCE

Regular and Periodic Cleaning Tasks

Routine cleaning tasks for the washer's exterior and drum.

Cleaning the Drum and Dispenser Drawer

Procedures for cleaning the washing machine drum and detergent dispenser.

Cleaning Door Seal and Water Inlet Filters

How to clean the door seal and inlet filters for proper operation.

Cleaning the Drain Pump Filter

Steps to clean the drain pump filter to prevent clogs and ensure proper drainage.

CARE IN COLD CLIMATES

Storing the Washer and Thawing Frozen Hoses

Steps to protect the washer in freezing temperatures and thaw frozen hoses.

TROUBLESHOOTING

Pre-Service Checks, FAQs, and Error Messages

Initial checks, common questions, and error code solutions.

Noises

Identifies common noises and their causes and solutions.

Operation Troubleshooting

Troubleshooting common operational problems like leaks, suds, power, and cycle duration.

Filling, Draining, Wrinkling, and Staining Issues

Troubleshooting problems related to filling, draining, and fabric appearance.

Stain Removal and Odor Issues

Addressing issues with stain removal and persistent odors in the washer.

WI-FI CONNECTIVITY TROUBLESHOOTING

Connection Problems and Solutions

Troubleshooting common issues with connecting the appliance to Wi-Fi.

LIMITED WARRANTY

USA Warranty Terms and Conditions

Warranty terms and conditions specific to the USA, including arbitration.

Canada Warranty Terms and Conditions

Warranty terms and conditions specific to Canada, including arbitration.

Warranty Exclusions

List of items and conditions not covered by the limited warranty.

Dispute Resolution Procedures

Detailed explanation of the arbitration process for resolving disputes.

LG WM3555H A Series Specifications

General IconGeneral
TypeWasher/Dryer Combo
Capacity (Wash)2.3 cu. ft.
Capacity (Dry)2.3 cu. ft.
ColorWhite
Energy Star CertifiedYes
Control TypeElectronic
Number of Wash Cycles14
SteamYes
Smart TechnologyNo
Washer TypeFront Load
Wi-Fi EnabledNo
Motor TypeDirect Drive

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