Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at (603) 673-1177 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

Call Or text Us

(603) 673-1177
276 South St. Milford, NH 03055
Today's Hours: 8:30 AM - 5:30 PM
Sat 9:00 AM - 1:00 PM

4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology

LG WM3998HBA

Features

  • 4.5 cu.ft. Ultra Large Capacity
  • TurboWash® Technology
  • 6Motion™ Technology
  • Allergiene™ Cycle / AAFA Certified

Quick Specs

  • Type: Combination Washer Electric Dryer
  • Energy Star Rated: No

See More

 
Image Feature

Fast Forward Your Wash

Give big loads the same great clean while cutting your wash time by up to 30 minutes with LG's enhanced TurboWash® technology.

Image Feature

A Smarter Way to Wash

6Motion™ Technology uses up to 6 different wash motions to provide a smart cleaning experience that is gentle on clothes and maximizes washing performance.

Image Feature

AAFA Certified LG Washers

LG washers with the Allergiene™ Cycle use the power of steam to remove over 95% of pet dander and dust mites. LEARN MORE

Image Feature

Cold Wash Without Compromise

ColdWash™ technology penetrates deep into fabrics, for cold water savings with warm water performance.

Image Feature

Get it All Done In Less Time

Ultra-large capacity (4.5 cu.ft.) means you have the room to do more laundry in fewer loads.

Image Feature

Life's better when your home runs smart

Discover ThinQ Care within the ThinQ app -- proactive smart alerts to keep your appliances running smoothly. Get notifications about usage, maintenance, plus early diagnosis right on your smartphone. SHOW ME MORE

Image Feature

Ventless Drying

No access to external venting? No problem. LG's all-in-one washer/dryers use ventless condensing to dry your clothes without the need for external venting.

Image Feature

Measure First, Order Right.

Nothing is more frustrating than an appliance that doesn't fit. We'll help you find the right one for your space.

Fast Forward Your Wash Give big loads the same great clean while cutting your wash time by up to 30 minutes with LG's enhanced TurboWash® technology.

A Smarter Way to Wash 6Motion™ Technology uses up to 6 different wash motions to provide a smart cleaning experience that is gentle on clothes and maximizes washing performance.

AAFA Certified LG Washers LG washers with the Allergiene™ Cycle use the power of steam to remove over 95% of pet dander and dust mites. LEARN MORE

Cold Wash Without Compromise ColdWash™ technology penetrates deep into fabrics, for cold water savings with warm water performance.

Get it All Done In Less Time Ultra-large capacity (4.5 cu.ft.) means you have the room to do more laundry in fewer loads.

Life's better when your home runs smart Discover ThinQ Care within the ThinQ app -- proactive smart alerts to keep your appliances running smoothly. Get notifications about usage, maintenance, plus early diagnosis right on your smartphone. SHOW ME MORE

Ventless Drying No access to external venting" No problem. LG's all-in-one washer/dryers use ventless condensing to dry your clothes without the need for external venting.

Measure First, Order Right. Nothing is more frustrating than an appliance that doesn't fit. We'll help you find the right one for your space.

Features

  • 4.5 cu.ft. Ultra Large Capacity
  • TurboWash® Technology
  • 6Motion™ Technology
  • Allergiene™ Cycle / AAFA Certified
  • LG ThinQ® Technology
  • Ventless Condensing Drying*
LAUNDRY APPLIANCE CAPACITY
Capacity 4.5 cu. ft.
SUMMARY
Dial-A-Cycle™ Yes
Hard Buttons Yes
Internal Heater Yes
Series LG
Steam Yes
Touch Buttons Yes
Type Front Load Washer & Dryer Combo
ENERGY
IMEF 2.4
IWF 3.7
WASHER PROGRAMS
No. of Washer Programs 14
Washer Programs Allergiene™, Bedding, Bright Whites, Delicates, Downloaded, Drain+Spin, Heavy Duty, Normal, Perm. Press, Sanitary, Speed Wash, Sportswear, Towels, Tub Clean
No. of Washer Options 12
Washer Options Pre Wash, Control Lock, TurboWash®, Add Garments, Cold Wash, Delay wash, Extra Rinse, Fresh Care, Remote Start, Rinse + Spin, Steam, Wi-Fi
No. of Wash/Rinse Temps 5
Wash/Rinse Temps Cold, Extra Hot, Hot, Tap Cold, Warm
No. of Spin Speeds 5
Spin Speeds Extra High, High, Low, Medium, No Spin
Water Levels Load Sensing
No. of Soil Levels 5
FABRIC CARE FEATURES
Turbowash® Yes
Allergiene™ Cycle Yes
ColdWash™ Option Yes
Sanitary Cycle Yes
SenseClean™ System Yes
Steam Technology Yes
LAUNDRY APPLIANCE CONVENIENCE FEATURES
4 Tray Dispenser Yes
Auto Suds Removal Yes
Control Lock Yes
End of Cycle Signal Yes
Leveling Legs Yes
LoadSense Yes
True Balance® Anti-Vibration System Yes
Easy Loading TilTub™ Yes
LAUNDRY APPLIANCE THINQ® SMART FEATURES
ThinQ® Smart Technology Yes
Energy Monitoring Yes
Remote Start and Cycle Monitor Yes
SmartDiagnosis™ (v3.0) Yes
ThinQ Care™ Yes
Tub Clean Coach Yes
Wifi Yes
MOTOR
Axis Horizontal
Max RPM 1300
Motor Type Inverter Direct Drive Motor
MATERIALS AND FINISHES
All Available Colors Black Steel
Cabinet PCM
Control Panel Plastic
Door / Rim Glass/Chrome
Door Cover Dark Blue Tinted Round Cover
NeveRust™ Stainless Steel Drum Yes
Top Plate Painted Steel
CERTIFICATION
AAFA Yes
POWER SOURCE
Washer Electrical Requirements 120V, 10 Amps
Ratings UL Listed
Washer Power Source Type Electric
OPTIONS/ACCESSORIES
LG Sidekick™ Pedestal Washer WD100CB
Pedestal WDP6B
DIMENSIONS
Carton (WxHxD) 29 23/32" x 41 27/32" x 31 17/32"
Depth with Door Open 55"
LG Sidekick™ Pedestal Washer (WxHxD) 27" x 14 1/8" x 30 3/4" (50 9/16" D with door open)
Pedestal (WxHxD) 27" x 13 5/8" x 28" (43 7/8" D with door open)
Product (WxHxD) 27" x 39" x 30 1/4"
Weight (Carton) 235.9 lbs.
Weight (Product) 213.8 lbs.
Width 27"
WARRANTY & UPC
Direct Drive Motor 10 Years
Drum 3 Years
Parts and Labor 1 Year
UPC 048231027946

Quick Specs


  • Appearance

  • Type: Combination Washer Electric Dryer

  • Features

  • Energy Star Rated: No

Specifications Sheet

Energy Guide

Owner's Manual English 5,690K 05/05/2023

Owner's Manual Spanish 5,570K 05/05/2023

Get Adobe Reader

* Documents require Adobe Reader.

Poster Image

Watch Video

Interactive Tour

{"hideMenu":false,"ipiOnly":false,"tourViews":[{"viewImage":{"sources":[{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/gallery/desktop-01.jpg.w1920.jpg","profile":"W1920","width":400,"height":265},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/gallery/desktop-01.jpg.w960.jpg","profile":"W960","width":400,"height":265},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/gallery/desktop-01.jpg.w480.jpg","profile":"W480","width":400,"height":265},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/gallery/desktop-01.jpg.w240.jpg","profile":"W240","width":240,"height":159}],"src":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/gallery/desktop-01.jpg","width":400,"height":265},"runtimeSrc":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/gallery/desktop-01.jpg.web.jpg","width":400,"height":265},"assetWrapper":"tour","alt":"LG WM3998HBA Washer_Dryer_Combos","isAdaCompliant":false},"hotspots":[{"hotspotX":0.2,"hotspotY":0.35,"captionFromAttr":"Get it All Done In Less Time","description":"Ultra-large capacity (4.5 cu.ft.) means you have the room to do more laundry in fewer loads.","media":{"sources":[{"src":"/www.lg.com/us/images/features/feature-get-it-all-done-desktop-r.jpg.w1920.jpg","profile":"W1920","width":1600,"height":800},{"src":"/www.lg.com/us/images/features/feature-get-it-all-done-desktop-r.jpg.w960.jpg","profile":"W960","width":960,"height":480},{"src":"/www.lg.com/us/images/features/feature-get-it-all-done-desktop-r.jpg.w480.jpg","profile":"W480","width":480,"height":240},{"src":"/www.lg.com/us/images/features/feature-get-it-all-done-desktop-r.jpg.w240.jpg","profile":"W240","width":240,"height":120}],"src":{"src":"/www.lg.com/us/images/features/feature-get-it-all-done-desktop-r.jpg","width":1600,"height":800},"runtimeSrc":{"src":"/www.lg.com/us/images/features/feature-get-it-all-done-desktop-r.jpg.web.jpg","width":1600,"height":800},"assetWrapper":"tour","alt":"Get it All Done In Less Time","isAdaCompliant":false,"type":"IMAGE"},"direction":"right"},{"hotspotX":0.2,"hotspotY":0.55,"captionFromAttr":"Ventless Drying","description":"No access to external venting? No problem. LG\u2019s all-in-one washer/dryers use ventless condensing to dry your clothes without the need for external venting.","media":{"sources":[{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-06-ventless_drying-d.jpg.w1920.jpg","profile":"W1920","width":1600,"height":800},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-06-ventless_drying-d.jpg.w960.jpg","profile":"W960","width":960,"height":480},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-06-ventless_drying-d.jpg.w480.jpg","profile":"W480","width":480,"height":240},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-06-ventless_drying-d.jpg.w240.jpg","profile":"W240","width":240,"height":120}],"src":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-06-ventless_drying-d.jpg","width":1600,"height":800},"runtimeSrc":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-06-ventless_drying-d.jpg.web.jpg","width":1600,"height":800},"assetWrapper":"tour","alt":"Ventless Drying","isAdaCompliant":false,"type":"IMAGE"},"direction":"right"},{"hotspotX":0.8,"hotspotY":0.35,"captionFromAttr":"Fast Forward Your Wash","description":"Give big loads the same great clean while cutting your wash time by up to 30 minutes* with LG\u2019s enhanced TurboWash® technology.","media":{"sources":[{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-01-fast_forward_your_wash-d.jpg.w1920.jpg","profile":"W1920","width":1600,"height":800},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-01-fast_forward_your_wash-d.jpg.w960.jpg","profile":"W960","width":960,"height":480},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-01-fast_forward_your_wash-d.jpg.w480.jpg","profile":"W480","width":480,"height":240},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-01-fast_forward_your_wash-d.jpg.w240.jpg","profile":"W240","width":240,"height":120}],"src":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-01-fast_forward_your_wash-d.jpg","width":1600,"height":800},"runtimeSrc":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-01-fast_forward_your_wash-d.jpg.web.jpg","width":1600,"height":800},"assetWrapper":"tour","alt":"Fast Forward Your Wash","isAdaCompliant":false,"type":"IMAGE"},"direction":"left"},{"hotspotX":0.8,"hotspotY":0.55,"captionFromAttr":"ColdWash™ Technology","description":"Using the cold cycle on your washer doesn\u2019t have to mean compromising. ColdWash™ technology uses cold water and enhanced washing motions to penetrate deep into fabrics, giving you cold water savings with warm water performance.","media":{"sources":[{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-07-the_hottest_thing_in_cold-d.jpg.w1920.jpg","profile":"W1920","width":1600,"height":417},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-07-the_hottest_thing_in_cold-d.jpg.w960.jpg","profile":"W960","width":960,"height":250},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-07-the_hottest_thing_in_cold-d.jpg.w480.jpg","profile":"W480","width":480,"height":125},{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-07-the_hottest_thing_in_cold-d.jpg.w240.jpg","profile":"W240","width":240,"height":62}],"src":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-07-the_hottest_thing_in_cold-d.jpg","width":1600,"height":417},"runtimeSrc":{"src":"/www.lg.com/us/images/washer-dryer-combos/md07504617/features/feature-07-the_hottest_thing_in_cold-d.jpg.web.jpg","width":1600,"height":417},"assetWrapper":"tour","alt":"ColdWash™ Technology","isAdaCompliant":false,"type":"IMAGE"},"direction":"left"}]}],"ipiCompatible":false}

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.