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KEY FEATURES

  • 4.5 cu. ft. Ultra Large Capacity
  • TurboWash™ 360 Technology
  • 6Motion™ Technology
  • Allergiene™ Cycle / AAFA Certified
  • ThinQ® Technology
  • ColdWash™ Technology

*LG Sidekick Pedestal Washer sold separately.

4.5 cu.ft. Smart wi-fi Enabled Front Load Washer with TurboWash™ 360 Technology
$ 1,149.00

Power Clean Big Loads in Under 30 Minutes*

Five powerful jets with variable sprays surround clothes from multiple angles, so detergent can penetrate deep into fabrics for a complete clean—even for big loads—in under 30 minutes*.
*Based on independent testing comparing models WM3900HBA and WM4370HWA in normal cycle with TurboWash™360° option, 10 lb. load vs. TurboWash® 2.0 option, 8 lb. load (Feb. 2019).
  • 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.

*LG SideKick™ Sold Separately.

Warranty / Certifications

SUMMARY

    • Type
    • Front Load Washer
    • Capacity (cu.ft.)
    • 4.5 cu. ft.
    • Matching Electric Dryer
    • DLEX3900W
    • Matching Gas Dryer
    • DLGX3901W
    • Matching Heat Pump Dryer
    • DLHC3900W
    • Color
    • White (W)

APPEARANCE

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

ENERGY

    • ENERGY STAR® Most Efficient 2019
    • Yes
    • ENERGY STAR® Most Efficient 2018
    • Yes
    • ENERGY STAR® Qualified
    • Yes
    • CEE Tier
    • 2
    • IMEF
    • 2.92
    • IWF
    • 2.9

WASH PROGRAMS

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

WASH OPTIONS

    • No. of Options
    • 12
    • Options
    • Steam, Fresh Care, Prewash, Remote Start, Delay Wash, Wi-Fi, Add Garments, TurboWash, ColdWash, Extra Rinse, Rinse+Spin, 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™ 360 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
    • Prewash, Main Wash (with liquid detergent cup), Bleach, Fabric Softener
    • LoDecibel™ Quiet Operation
    • Yes
    • End of Cycle Signal
    • Yes
    • LoadSense
    • Yes
    • Child Lock*
    • Yes
    • Auto Suds Removal
    • Yes
    • Leveling Legs
    • 4 Adjustable Legs
    • Easy Loading TilTub™
    • Yes

SMARTTHINQ® TECHNOLOGY

    • SmartDiagnosis™ (v3.0)
    • Yes
    • Wi-Fi
    • Yes
    • Cycle Monitoring and Notification
    • Yes
    • Energy Monitoring
    • 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
    • White (W), Black Stainless (K)

CERTIFICATION

    • AAFA
    • Yes

POWER SOURCE

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

OPTIONS/ACCESSORIES

    • Pedestal
    • WDP4W
    • Pedestal (WxHxD)
    • 27" x 13 5/8" x 28" (43 7/8" D with door open)
    • LG Sidekick™ Pedestal Washer
    • WD100CW
    • LG Sidekick™ Pedestal Washer (WxHxD)
    • 27 x 14 1/8 x 30 3/4 (50 1/2 D with door open)
    • Stacking Kit
    • KSTK1

DIMENSIONS

    • Product (WxHxD)
    • 27" x 39" x 30 1/4"
    • Depth with Door Open
    • (55" D with door open)
    • Carton (WxHxD)
    • 29 23/32" x 41 27/32" x 31 17/32"
    • Weight (Product/Carton)
    • 202.8 / 224.8 lbs.

LIMITED WARRANTY

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

UPC CODES

    • UPC
    • 048231024891

What people are saying

Rated 1 out of 5 by from Poor quality Front door of my washer is coming apart and cracking. Neither LG or RC Willey will warranty!
Date published: 2022-05-10
Rated 5 out of 5 by from Amazing washer! After using this washer for several weeks, it’s no wonder it received the highest ranking from a popular consumer products testing magazine. This machine works great, looks great, and is loaded with every feature imaginable. The turbo wash is spectacular and extremely fast. You can do a normal load in about 30 minutes. You will not be disappointed with this washer!
Date published: 2022-05-09
Rated 5 out of 5 by from Great features! I bought these last month and already can tell the difference in how clean my clothes are and how quickly my clothes are dried!!
Date published: 2022-05-01
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WM3900HWA
$1,149.00
In Stock
Sold and Fulfilled by LG
  • Free Shipping, Installation & Haul Away*

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 looking at buying a LG Thin Q washer with matching dryer. Is it neccessary to use WI FI to use the machines.

Asked by: DEE 69
Wi-Fi is optional on our washers and dryers that have Wi-Fi functionality. They all can be operated normally without having to use Wi-Fi...^Ivan
Answered by: Ivanf
Date published: 2022-04-22

Does WM3900HW $.5 CU FT FRONT LOADER have low enough vibration to be suitable for a manufactured home....assuming no pedestals?

Asked by: KimoC
The ENERGY STAR® Qualified LG 4.5 cu.ft. Smart Wi-Fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HWA must be installed on a solid floor that t is strong and rigid enough to support the weight of the washer, even when fully loaded, without flexing or bouncing. If the floor has too much flex, you may need to reinforce it to make it more rigid. If the floor is not solid, it may cause severe vibration and noise. Concrete flooring is best, but a wood floor is sufficient, provided it is built to FHA standards. Before installing the washer, make sure the floor is clean, dry, and free of dust, dirt, water, and oil so the washer feet cannot slide easily. Leveling feet that can move or slide on the floor can contribute to excess vibration and noise due to poor contact with the floor...^Ivan
Answered by: Ivanf
Date published: 2022-03-21

Are the doors on the WM3900HBA and the DLG3601V both reversible?

Asked by: Neang
The doors for our LG Front Load Washers are not reversible but the doors for their matching dryers are, so the door for the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart Wi-Fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HBA is not reversible but that for the ENERGY STAR® Qualified LG 7.4 cu. ft. Ultra Large Capacity Smart wi-fi Enabled Front Load Gas Dryer with Built-In Intelligence, Model # DLG3601V is reversible...^Ivan
Answered by: Ivanf
Date published: 2022-03-15

The glass inside of the door shattered during a cycle. I was washing bedding, nothing hard was inside, not even a button, so how did this happen? I am at risk of this happening again if replaced? The washer is 1 year and 5 months old, no warranty coverage

Asked by: Lobarnes
We regret to read that the inner glass for the door on your ENERGY STAR® Qualified LG 4.5 cu.ft. Smart wi-fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HWA shattered during a cycle and we sincerely apologize for any inconvenience. Unfortunately, there is no way to determine why the glass shattered, and although there is no way to predict if that will happen, it is highly unlikely that it will happen again...^Ivan
Answered by: Ivanf
Date published: 2022-03-10

Can the door on this washing machine be reversed to open from left to right?

Asked by: canbysailor
The doors for our Front Load Washers, including the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart wi-fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HBA are not reversible...^Ivan
Answered by: Ivanf
Date published: 2021-09-21

The paddles/files keep falling off. How do I prevent this from happening?

Asked by: BonnieCon
Please pardon us, but we are not clear on what you are referring to as "paddles/files" that keep falling off the LG 4.5 cu.ft. Smart wi-fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HWA and will need some clarification...^Ivan
Answered by: Ivanf
Date published: 2021-08-02

My clothes are always warm when I remove them from the washer.  I prefer a cold water wash and rinse.  I know how to change the wash to tap cold but they always seem to be rinsed with either warm or hot.  I am ruining my closed clothes.  Please help.

Asked by: Judy2234
All rinses for the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart Wi-Fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HBA use tap cold water. If your rinses are using warm or hot water, check to make sure that you do not have the hot and cold water hoses connected in reverse to your hot and cold water taps...^IFV
Answered by: Ivanf
Date published: 2022-02-04

What is True Balance and how do I know if its working? I had a 15 year old LG front loader prior to this model. When the spin cycle starts the machine seems to be out of balance way more than my old one. I do have it on a sidekick. but shakes too much.

Asked by: Jim FL
The TrueBalance™ Anti-Vibration System for the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart Wi-Fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HBA balances uneven loads and reduces noise to a minimum so you can run it anytime, anywhere. IT is enabled by LG's Direct Drive Motor technology. With Direct Drive motor technology, power is transferred from the motor to the drum rather than through belts and pulleys which significantly reduces any noise and vibration. Additionally, TrueBalance™ technology automatically counterbalances uneven loads and adjusts spin speeds to further reduce vibrations. However, you still need to ensure that the washer is installed on a solid floor that is strong and rigid enough to support the weight of the washer, even when fully loaded, without flexing or bouncing. If the floor has too much flex, you may need to reinforce it to make it more rigid. If the floor is not solid, it may cause severe vibration and noise. Before installing the washer, make sure the floor is clean, dry and free of dust, dirt, water and oil so the washer feet cannot slide easily. Leveling feet that can move or slide on the floor can contribute to excess vibration and noise due to poor contact with the floor. The washer must be installed on firm flooring to minimize vibration during the spin cycle. Concrete flooring is best, but a wood floor is sufficient, provided it is built to FHA standards. The allowable slope under the entire washer is a maximum 1 inch (2.5 cm) difference from side to side or from front to back...^IFV
Answered by: Ivanf
Date published: 2021-01-04
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