Black Steel
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KEY FEATURES

  • 4.5 cu.ft. Ultra Large Capacity
  • TurboWash® Technology
  • 6Motion™ Technology
  • Allergiene™ Cycle / AAFA Certified
  • LG ThinQ® Technology
  • Ventless Condensing Drying

4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology
$ 1,899.00
*1. Compared to an LG front load washer without TurboWash®. Based on AHAM-HLW-1-2010 test protocol. Cotton / Normal or comparable cycle at default settings, 8 lb. loads. Excludes quick wash or comparable cycles intended for small, lightly soiled loads only.
  • Proactive Customer Care sends recommended maintenance tips and usage reports to help keep your appliances running at their best. Plus, receive alerts for potential problems before they arise.

  • Save time and simplify laundry day. Download the ThinQ® app to control your washer/dryer from virtually anywhere, anytime. Start cycles, check time remaining and more, right from your phone.

Warranty / Certifications

SUMMARY

    • Series
    • LG
    • Type
    • Front Load Washer & Dryer Combo
    • Capacity (cu.ft.)
    • 4.5
    • Internal Heater
    • Yes
    • Steam
    • Yes
    • Width
    • 27"
    • Color
    • Black Steel (B)

APPEARANCE

    • Hard Buttons
    • Yes
    • Touch Buttons
    • Yes
    • Dial-A-Cycle™
    • Yes

ENERGY

    • IMEF
    • 2.4
    • IWF
    • 3.7

WASH PROGRAMS

    • No. of Programs
    • 14
    • Programs
    • Normal, Heavy Duty, Bedding, Bright Whites™, Sanitary, Allergiene™, Tub Clean, Towels, Perm. Press, Sportswear, Delicates, Speed Wash, Drain+Spin, Downloaded

WASH OPTIONS

    • No. of Options
    • 12
    • Options
    • Steam, Fresh Care, Cold Wash, Delay Wash, Remote Start, Wi-Fi, TurboWash™, Rinse+Spin, Extra Rinse, Add Garments, Pre-wash, Control Lock

WASH DETAILS

    • No. of Wash/Rinse Temps
    • 5
    • Wash/Rinse Temps
    • Extra Hot, Hot, Warm, Cold, Tap Cold
    • No. of Spin Speeds
    • 5
    • Spin Speeds
    • Extra High, High, Medium, Low, No Spin
    • Max RPM
    • 1300
    • Water Levels
    • Load Sensing
    • No. of Soil Levels
    • 5

FABRIC CARE FEATURES

    • TurboWash® 2.0 Technology
    • Yes
    • Steam Technology
    • Yes
    • Allergiene™ Cycle
    • Yes
    • Sanitary Cycle
    • Yes
    • ColdWash™ Option
    • Yes
    • SenseClean™ System
    • Yes

CONVENIENCE FEATURES

    • TrueBalance™ Anti-Vibration System
    • Yes
    • 4 Tray Dispenser
    • Yes
    • End of Cycle Signal
    • Yes
    • LoadSense
    • Yes
    • Child Lock
    • Yes
    • Auto Suds Removal
    • Yes
    • Leveling Legs
    • Yes
    • Easy Loading TilTub™
    • Yes

THINQ® TECHNOLOGY

    • SmartDiagnosis™ (v3.0)
    • Yes
    • WiFi
    • Yes
    • Remote Start and Cycle Monitor
    • Yes
    • Energy Monitoring
    • Yes
    • Tub Clean Coach
    • Yes

CERTIFICATION

    • AAFA
    • Yes

MOTOR

    • Motor Type
    • Inverter Direct Drive Motor
    • Axis
    • Horizontal

MATERIALS AND FINISHES

    • NeveRust™ Stainless Steel Drum
    • Yes
    • Cabinet
    • PCM
    • Control Panel
    • Plastic
    • Top Plate
    • Painted
    • Door / Rim
    • Glass/Chrome
    • Door Cover
    • Dark Blue Tinted Round Cover
    • All Available Colors
    • Black Steel (B)

POWER SOURCE

    • Ratings
    • UL Listed
    • Electrical Requirements
    • 120V, 10 Amps
    • Type
    • Electric

OPTIONS/ACCESSORIES

    • Pedestal
    • WDP4B
    • Pedestal (WxHxD)
    • 27" x 14 1/8" x 30 3/4" (50 9/16" D with door open)
    • LG Sidekick™ Pedestal Washer
    • WD100CB
    • LG Sidekick™ Pedestal Washer (WxHxD)
    • 27" x 14 1/8" x 30 3/4" (50 9/16" D with door open)

DIMENSIONS

    • Product (WxHxD)
    • 27" x 39" x 30 1/4"
    • Depth with Door Open
    • 55"
    • Carton (WxHxD)
    • 29 23/32" x 41 27/32" x 31 17/32"
    • Weight (Product)
    • 213.8 lbs.
    • Weight (Carton)
    • 235.9 lbs.

LIMITED WARRANTY

    • Parts and Labor
    • 1 Year
    • Direct Drive Motor
    • 10 Years
    • Drum
    • 3 Years

UPC CODES

    • UPC
    • 048231027946

What people are saying

Rated 4 out of 5 by from worked for My Family In an ideal world you would still want a separate washer and dryer, but the combo definitely worked out. Its very modern and cool, it washes a good amount of clothing and it does dry. Yes you have to clean the lint inside after every wash, but we are used to it and we are ok now with setting it and going out. when washing and drying it takes up to 6 hours, But you can leave and come back or you can go to bed and its ready. But if you just wash you can do that in 30 mins and hang your clothes to dry. My electric bill only went up by 40
Date published: 2022-01-14
Rated 5 out of 5 by from I love this machine! This is my downstairs laundry go to, I use for kitchen towels, pool towels, slip covers, curtains, bedspreads, etc., things you can put in washer/dryer and forget about. It is not a machine for in a hurry washing. You are not using 220 power supply like normal dryer so the cycle does take much longer, hence the start it and forget it approach. I am going back to purchase the pedestal as the drain to clean every month or so is at the front bottom, another user uses a bucket to drain line before cleaning the filter.
Date published: 2022-01-13
Rated 2 out of 5 by from too much maintenance drying cycle horrible, no lint filter, whiping rubber part is constant. Would not recommend.
Date published: 2022-01-12
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BUY DIRECTLY FROM LG

WM3998HBA
SALE : $1,899.00
$2,099.00
In Stock
Sold and Fulfilled by LG
  • Free In-Home Delivery*

ASK & ANSWER

Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

I am considering buying this machine. I am concern with some of the feed back related to drying time. Is there any explanation you can give? what times would you expect is normal to dry a load of towels for example? thanks

Asked by: Henry321
What you need to keep in mind is that for stand-alone washers and dryers, the washing capacity is always about twice that for the drying capacity which is why the capacities for matching washers and dryers is typically larger ( almost twice) for dryers than for washers. Since washing and drying in the LG 4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology, Model # WM3998HBA are done in the same drum, the capacity for drying is smaller than it is for washing so if you wash a full load in this unit, the drying capacity is half of that and if you place too much clothing in one load when washing, you will need to reduce the wash load by half for drying otherwise the unit will take much longer than usual to dry. The drying process for this unit also requires water. The cold water is used to condense the moisture in the air and if water is not supplied to the unit, your clothes will not be dried...^Ivan
Answered by: Ivanf
Date published: 2022-01-04

Does the drain pump go out on those set also? Currently have an older washer/dryer all in one unit from LG and have to replace the drain pump about 4 times a year. Thinking of getting a new unit but don't want to run into the same issue.

Asked by: mrsfinner
We are not aware of or have any reports about the drain pump on the LG 4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology, Model # WM3998HBA having to be replaced four times a year. It is highly recommended that you clean the drain pump filter periodically to prevent clogging with foreign objects or lint that may strain the pump or damage it...^Ivan
Answered by: Ivanf
Date published: 2022-01-04

Why is there water dripping from the bottom of the washer?

Asked by: Dee2001
Please reach out to our technical support team via private message on Facebook @LGUSSupport and use #VOC in your first message to our social media support team or call at 800-243-0000. Also, be sure to provide your contact information, model/serial numbers and date of purchase. ^Daphane
Answered by: LG Electronics
Date published: 2021-12-20

is the wm3998hba combo compatible with a tankless water heater

Asked by: north1955
The LG 4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology, Model # WM3998HBA connects to the hot and cold water faucets in your laundry room like any other washer does. If your tankless water heater can be used for a regular washer, then you can use it with the WM3998HBA. Contact the manufacturer for your tankless water heater for advice...^Ivan
Answered by: Ivanf
Date published: 2021-12-01

When using Turbo and Normal Dry, the time gets stuck in 11 minutes and doesn't move further than that for a long time. I usually have to turn off the machine and my clothes are extremely dry already. Is there a problem with the moisture sensor?

Asked by: mfalonzo9
Both the Turbo and Normal cycles when drying in the LG 4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology, Model # WM3998HBA periodically spray water into the drum to reduce the drying time and the normal cycle does not spray as much water as the turbo cycle. Electronic sensors that measure the temperature of the exhaust to increase or decrease drying temperatures are used in the automatic programs...^Ivan
Answered by: Ivanf
Date published: 2021-11-15

Very important question... Is there a way to turn the cycle notification off on the actual unit? It's right next to my bed, which I can't change and when the cycle is done the whole thing lights up and dings, which is great..but not while I'm sleeping

Asked by: Liz406
There is no setting on the LG 4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology, Model # WM3998HBA that turns off the chime that sounds when the cycle completes. To prevent the unit from disturbing you while asleep, you may want to use the Delay Wash function to set the unit to operate while you are not asleep...^Ivan
Answered by: Ivanf
Date published: 2021-11-05

Is there a recommended cycle for washing shoes/sneakers?

Asked by: mfalonzo9
Check your shoes/sneakers to make sure that they are washable and to see if they have garment labels on them that instruct you on how to wash them in the LG 4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology, Model # WM3998HBA or in any other washing machine or contact their manufacturer to inquire about how they should be washed. Like clothing items, you always need to follow the directions on the garment labels on those items that let you know how they should be washed...^Ivan
Answered by: Ivanf
Date published: 2021-11-03

How long are the drying times on these new ventless models? I saw the stackable machine has drying times but this ones do not.

Asked by: Emet
You can press the Dry button on the LG 4.5 cu.ft. Smart Wi-Fi Enabled All-In-One Washer/Dryer with TurboWash® Technology, Model # WM3998HBA repeatedly to toggle through Drying Time selections of 30/60/90/120/180/210 minutes. When you use the Automatic cycle, the dryer will show an estimated drying time for your selected cycle. The estimated drying time will vary from the actual drying time depending on the type of fabric, size of the load, and the dryness level you select. For consistently dry loads, all the articles in your load should be similar in material and thickness and you should not overload the drum and you will need to leave enough room for clothes to tumble freely...^Ivan
Answered by: Ivanf
Date published: 2021-09-10
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