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LG WM3987HW - User Manual

LG WM3987HW
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FRONT LOAD WASHER / DRYER COMBO
LG MODEL # WM3987HW
COLOR: White
TRUEBALANCE™ ANTI VIBRATION SYSTEM
DIRECT DRIVE MOTOR, 10 YEAR WARRANTY
ULTRA LARGE 3.6 CU.FT. CAPACITY
VENTLESS CONDENSING DRYING SYSTEM
Design Style Front Loader / Front Control
Type of Display LED
Dimensions (WxHxD) 27” x 38 11/16” x 29 3/4”
Capacity (cu.ft.) DOE 3.6
Drying System Vent less Condensing
Color White
Number of Wash Programs 9
Number of Dry Programs 6
Number of Wash/Rinse Temps 5
Dial-A-Cycle™ yes
Easy Loading Tilt Tub yes
Delay Wash yes
Spin Speed (Max) 1200
Warranty 1 Year Parts and Labor, 10 Years Motor, Lifetime on Drum

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Questions and Answers

  • R
    rriversAug 18, 2025
    Why won't my LG WM3987HW Washer/Dryer turn on?
    • M
      Michael RiceAug 18, 2025
      If your LG Washer/Dryer won't turn on, make sure it's properly plugged into a grounded, 3-prong outlet (120-VAC, 60-Hz). Check if a house fuse is blown, or if a circuit breaker has tripped. Reset the breaker or replace the fuse. If overloading is the issue, have it corrected by an electrician.
  • R
    Rachel HowardAug 20, 2025
    Why won't the door on my LG Washer/Dryer unlock?
    • J
      Jennifer McmillanAug 20, 2025
      If the door on your LG Washer/Dryer won't unlock after stopping or pausing a cycle, it could be due to a high interior temperature. Allow the washer to cool until the DOOR LOCK indicator turns off. Alternatively, the water level might be too high; let the washer complete the cycle or run the DRAIN & SPIN cycle.
  • S
    Sandra RubioAug 23, 2025
    How to prevent wrinkling with my LG Washer/Dryer?
    • G
      gchenAug 23, 2025
      If your LG Washer/Dryer is wrinkling clothes, remove items promptly after the cycle. Avoid overloading the washer; the drum should not be tightly packed. Also, check the inlet hose connections, as hot water rinses can set wrinkles. * Remove items promptly. * Avoid overloading. * Check inlet hose connections.
  • M
    Mallory LucasAug 26, 2025
    Why is my LG WM3987HW/Dryer wash cycle taking so long?
    • C
      Cathy HigginsAug 26, 2025
      If your LG Washer/Dryer wash cycle time is longer than usual, this is normal. The washer automatically adjusts the cycle time based on the amount of laundry, water pressure, water temperature, and other operating conditions to provide optimal results.
  • M
    Megan ChurchAug 28, 2025
    Why won't my LG Washer/Dryer spin and shows an error?
    • C
      chelseanolanAug 28, 2025
      If your LG Washer/Dryer is not spinning and shows an error, ensure the door is properly closed. Press the START/PAUSE button. It may take a moment for the drum to start. The washer won’t spin unless the door is locked (DOOR LOCK will appear on the display). If the door is closed and locked, and the error persists, call for service.
  • K
    Kelsey HoganAug 30, 2025
    Why is my LG WM3987HW Washer/Dryer making a vibrating noise?
    • M
      Matthew JenningsAug 31, 2025
      If your LG Washer/Dryer is making a vibrating noise, ensure all shipping bolts and packaging have been removed (refer to the Installation Instructions). Stop the washer and rearrange the load if it's uneven. Adjust the leveling feet to ensure all four are firmly on the floor during the spin cycle. Also, ensure the floor is solid and doesn't flex; refer to 'Flooring' in the Installation section.
  • J
    Jenna MartinezSep 2, 2025
    Why is my LG Washer/Dryer leaking water?
    • L
      Lee WatersSep 2, 2025
      If you notice water leaking around your LG Washer/Dryer, check the fill hose connections at the tap and washer to ensure they are tight. If the house drain pipes are clogged, unclog them or contact a plumber.
  • C
    Casey MaySep 4, 2025
    Why is my LG Washer/Dryer producing too many suds?
    • D
      Deborah LongSep 5, 2025
      If your LG Washer/Dryer is producing excessive suds, you may be using too much detergent or the incorrect type. Reduce the amount of detergent or switch to a low-sudsing detergent with the HE (High-Efficiency) logo.
  • C
    carmenpriceSep 7, 2025
    Why is my LG Washer/Dryer staining my clothes?
    • S
      Stacey JohnsonSep 7, 2025
      If your LG Washer/Dryer is staining clothes, load laundry products into the dispenser instead of directly into the drum. Remove items promptly after the cycle to prevent dye transfer, and always sort dark colors separately from light colors and whites. Avoid washing heavily soiled items with lightly soiled ones.
  • E
    Edward AtkinsonSep 9, 2025
    Why is my LG WM3987HW/Dryer making a thumping sound?
    • B
      Bryan HarrisonSep 9, 2025
      A thumping sound from your LG Washer/Dryer may be normal with heavy wash loads. If the sound persists, the washer may be out of balance. Stop the washer and redistribute the load.

Summary

USERS GUIDE & INSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS

Provides comprehensive guidance for installing the washing machine correctly and safely.

FLOORING

Ensures proper floor stability and slope for washer installation.

INSTALLATIONS WITH OPTIONAL PEDESTAL BASE OR STACKING KIT

Guidelines for installing the washer with optional pedestal or stacking kits.

UNPACKING AND REMOVING SHIPPING BOLTS

Critical steps to remove shipping bolts and retainers before operating the washer.

CONNECTING THE WATER LINES

Instructions for connecting hot and cold water supply hoses to the washer.

CONNECTING THE DRAIN LINE

Details on how to properly connect the drain hose for water removal.

LEVELING THE WASHER

How to adjust leveling feet for optimal stability and reduced vibration.

INSTALLATION OF NON-SKID PADS (OPTIONAL)

Optional step to install non-skid pads to prevent washer movement.

HOW TO USE

SORTING WASH LOADS

Guidance on grouping clothes by color, soil level, and fabric for optimal washing.

SELECTING DETERGENT

Information on using High-Efficiency (HE) detergents and avoiding damage.

ABOUT THE DISPENSER

Explains the function and compartments of the automatic detergent dispenser.

LOADING THE DISPENSER

Step-by-step guide for adding detergent, bleach, and fabric softener to the dispenser.

CONTROL PANEL FEATURES

Overview of the washer's control panel buttons, display, and indicators.

CYCLE GUIDE

A reference table showing recommended fabric types for each wash cycle.

THE LED DISPLAY

Explanation of the various indicators and information shown on the LED display.

OPERATING THE WASHER

Step-by-step process for starting and operating a wash cycle.

CYCLE SETTING BUTTONS

Details on customizing cycle settings like wash/rinse temperature, spin speed, and soil level.

DRYING OPTIONS AND GUIDE

Information on selecting drying options and recommended settings for different fabrics.

CYCLE OPTION BUTTONS

Explains additional cycle options like Pre-Wash, Extra Rinse, and Stain Cycle.

SPECIAL FUNCTIONS

Describes special features such as Child Lock and SpinSense™.

CARE AND CLEANING

REGULAR CLEANING

Covers cleaning the washer exterior, interior, and door seal for routine maintenance.

CLEANING THE WASHER

Details cleaning the detergent dispenser and removing lime buildup from the interior.

WATER INLET FILTER MAINTENANCE

Instructions for cleaning the water inlet filters to ensure proper water supply.

DRAIN PUMP FILTER MAINTENANCE

Steps to clean the drain pump filter to prevent drainage issues.

TROUBLESHOOTING

NORMAL SOUNDS YOU MAY HEAR

Describes common sounds produced by the washer during operation.

BEFORE CALLING FOR SERVICE

A guide to diagnose and resolve common washing machine problems before seeking professional help.

SPECIFICATIONS AND ACCESSORIES

KEY DIMENSIONS AND SPECIFICATIONS

Provides technical details, dimensions, and electrical requirements of the washer.

OPTIONAL ACCESSORIES

Information on available accessories like pedestals and stacking kits.

WARRANTY INFORMATION

LG LIMITED WARRANTY DETAILS

Outlines the terms, conditions, and duration of the manufacturer's warranty.

LG WM3987HW Specifications

General IconGeneral
TypeWasher/Dryer Combo
ColorWhite
Energy Star CertifiedYes
Width27 inches
Wash Cycles14
Control TypeElectronic
SteamYes
SmartDiagnosisYes
Washer TypeFront Load
Voltage120V
Frequency60 Hz
Motor TypeInverter Direct Drive
Number of Wash Cycles14
Number of Temperature Settings5
Number of Spin Speeds5
Delay StartYes
Child LockYes
Wi-Fi EnabledNo
StackableNo

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