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

Black Steel


  • 4.5 cu. ft. Ultra Large Capacity
  • TurboWash™ 360 Technology
  • 6Motion™ Technology
  • Allergiene™ Cycle / AAFA Certified
  • ThinQ® Technology
  • ColdWash™ Technology
4.5 cu.ft. Smart wi-fi Enabled Front Load Washer with TurboWash™ 360 Technology
$ 1,199.00

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).

Warranty / Certifications


See compatible products below:


    • Type
    • Front Load Washer
    • Capacity (cu.ft.)
    • 4.5 cu. ft.
    • Matching Electric Dryer
    • DLEX3900B
    • Matching Gas Dryer
    • DLGX3901B
    • Matching Heat Pump Dryer
    • DLHC3900B
    • Color
    • Black Steel (B)


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


    • 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


    • 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


    • 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


    • 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


    • TurboWash™ 360 Technology
    • Yes
    • Steam Technology
    • Yes
    • Allergiene™ Cycle
    • Yes
    • Sanitary Cycle
    • Yes
    • ColdWash™ Option
    • Yes
    • SenseClean™ System
    • Yes


    • 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


    • SmartDiagnosis™ (v3.0)
    • Yes
    • Wi-Fi
    • Yes
    • Cycle Monitoring and Notification
    • Yes
    • Energy Monitoring
    • Yes


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


    • 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)


    • AAFA
    • Yes


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


    • 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)
    • Stacking Kit
    • KSTK1
    • Hose Included
    • No


    • 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.


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


    • UPC
    • 048231026420

What people are saying

Rated 4 out of 5 by from Short Drain Hose and WiFi Incompatability So far so good, as far as washing is concerned. Clothes are cleaned thoroughly and there have been no problems in the first two months. Here are two features that might affect your decision, however. 1) the drainage hose is less than five feet long. You'll need to purchase an extension hose if your drain is not directly behind the washer. 2) The WiFi feature doesn't work at all with a dual band router (2.4 and 5 GHz). You need to make sure you have a single band 2.4 GHz router if you want to enable the WiFi.
Date published: 2021-05-07
Rated 5 out of 5 by from Great features!! We’ve had this for a few weeks and it’s great! Features are good and efficiency is good.
Date published: 2021-05-07
Rated 4 out of 5 by from Good Product This product works well . I just started using for the last 3 weeks and so far it works well . One option will be good if it is added . If i can get notifications to alexa as well along with mobile also , then that is a good add on to this wifi enabled product . overall product works great
Date published: 2021-05-06
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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.

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: 2021-03-04

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

Does WM3900HWA handle small loads well?

Asked by: Anonymous
The ENERGY STAR® Qualified LG 4.5 cu.ft. Smart Wi-Fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HWA features a Speed Wash cycle that can be used to quickly wash lightly soiled clothing and small loads. For high wash and rinse efficiency, wash small loads of 2-3 lightly soiled garments(less than 3 lb. (1.36 kg). You can also use the 'Downloaded' cycle to download new and specialized cycles that are not included in the standard cycles on the appliance. One of the specialized cycles that you can download is the 'Small Load' cycle...^IFV
Answered by: Ivanf
Date published: 2020-11-10

Is the filter easily accessible in this model?

Asked by: EMME61
The drain pump filter for the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart Wi-Fi Enabled Front Load Washer with TurboWash™ 360 Technology, MOdel # WM3900HBA is located behind the Filter Access Cover which is the square cutout with rounded corners that is located on the bottom left corner of the washer as shown in the images of the unit. You can watch an instructional video for cleaning the drain pump filter at https://www.youtube.com/watch?v=5Ty3bVhR5iM...^IFV
Answered by: Ivanf
Date published: 2020-11-14

Where do I find password - code for the  front loading LG washer # WM3900HBA  To set up Thin Q WiFi connection

Asked by: Laurie thin Q connection
When connecting the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart Wi-Fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HBA to Wi-Fi, in the SmartThinQ app that you will have installed on your smartphone, when the apps prompts you to connect to the device via Wi-Fi, once you are in the settings, tap on Wi-Fi and find LG Smart Laundry 2, behind that is your Wi-Fi password, it's part of the name. You have to enter it twice when prompted for the password...^IFV
Answered by: Ivanf
Date published: 2020-10-02

If I ordered the LG 3900HWA washing machine in black and the sidekick pedastal, what is the total width, height and depth? Also, what is the cost of both? Are there any current rebates? Where’s the best place to buy it in 32169 zip code? 

Asked by: BKen
Both the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart wi-fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HWA and the LG Sidekick™ Pedestal Washer, Model # WD100CW have a width of 27". The washer has a depth of 30 1/4" and the LG Sidekick™ Pedestal Washer has a depth of 30 3/4". The washer has a height of 39" and the pedestal washer has a height of 14 1/8" so the total height will be their combined heights which will be 53 1/8". The product pages for either product will show any available rebates under the price for the product or above the 'Where to Buy' button. To find retailers in your area based on your location, you can click on that 'Where to Buy' button...^IFV
Answered by: Ivanf
Date published: 2020-04-08

does this model have an internal heat sensor

Asked by: sizzle2009
Hi sizzle2009. We would need some clarification about what heat sensor you are inquiring about. Like all other washing machines, the ENERGY STAR® Qualified LG 4.5 cu.ft. Smart wi-fi Enabled Front Load Washer with TurboWash™ 360 Technology, Model # WM3900HBA has a thermistor which is essentially a resistor that changes its electrical resistance at varying temperatures. Thermistors are used in washing machines because their electrical resistance at various temperatures is known, it's easy for the washing machine to monitor a thermistor and detect when certain temperatures are reached. Thermistors are sometimes called NTC sensors or NTC Thermostats. Hopefully, that is the sensor that you are inquiring about? ^IV
Answered by: Ivanf
Date published: 2020-02-11

Is there a detailed explanation for what each wash cycle does and for what types of clothes that cycle should be used for

Asked by: Dirty dude
Information regarding each cycle and what they should be used for can be found beginning on page 24 of the Owner's Manual https://www.lg.com/us/support/product/lg-WM3900HWA.ABWEUUS ^CP
Answered by: ChrisPSM
Date published: 2020-11-04
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