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Key Features

  • 4.5 cu. ft. Large Capacity
  • SmartThinQ® Technology
  • Steam Technology
  • LG SideKick™ Compatible
  • 6Motion™ Technology
  • TubClean Cycle

available colors:

Graphite Steel
Suggested Price


Suggested Price

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.


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.


Think you can’t do laundry on the go? Think Again.

Expand the limits of your laundry room with the LG SmartThinQ® app. Select a cycle, start or stop the wash and get notifications about when your laundry will be done, all from your smartphone. It even works with the Google Assistant and Amazon Alexa, so you can manage your laundry with simple voice commands.


Deep Clean With Steam

Our steam technology gently but powerfully penetrates fabrics to virtually eliminate dirt, odors and wrinkles.


For Small Loads that Can’t Wait

Whether it’s your kids’ favorite shirt, yoga pants or a school uniform, washing a full load seems wasteful for just a few pieces. Now you can wash small loads that just can’t wait with the LG SideKick™ Pedestal Washer or wash two loads at once to save time.



Learn more about LG SideKick™


6 Customer Care Cycles

LG SideKick™ offers six distinct wash cycles, including a special setting for active wear.


Simultaneous or Independent Operation

LG SideKick™ saves time by washing two loads at once or get it all done by washing a small load separately.    

Simultaneous_ Independent_d2

Raises Your Washer

LG SideKick™ allows you to easily access laundry for more comfortable loading and unloading in the main washer. Compatible with all new LG Front Load Washers.


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.


Easily Maintain &
Keep Fresh

TubClean Cycle is designed for easy, periodic maintenance to keep your washer fresh. The cycle uses water jets and intense heat (up to 149 degrees) to sterilize the tub and help keep your high-performing washer in tip-top condition.

Washer/dryer stacked on a black background with an outline drawing of a kithcen

Fits in More Places

Get extra capacity without taking up extra space, thanks to a 30” depth that easily fits into smaller spaces or second floor closets.


Warranty / Certifications




Follow the tips below to make sure your LG product will fit in the space intended.


What People Are Saying

Date published: 2019-06-13
Rated 5 out of 5 by from Totally Lives Up To Its Consumer Reports Ratings Excellent washer, each of the 4 cycles I used so far provides very clean clothes that dry qucikly.
Date published: 2019-06-12
Rated 5 out of 5 by from Great Washing Machine I bought the LG Washer roughly a month ago and it is perfect! The washer is quite, user friendly, easy to use, and even connects to WiFi to alert the user when a cycle has finished. I would definitely recommend this product to anyone.
Date published: 2019-06-12
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Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

We had our new washer delivered last week, and I noticed a smell coming from the rubber gasket. It smelled like mold or mildew and it is BRAND NEW!!!! What do I do to fix this? It has been a week and the smell is still there and gets on clothes.

Asked by: marney83
We are sorry to see you are having trouble with odor and buildup on your new front load washing machine. You can troubleshoot this issue from the following help article: If this doesn't resolve the issue you are experiencing, our support team would be happy to help. Please reach out to a specialist via Twitter @LGUSSupport, Facebook ^CP
Answered by: ChrisPSM
Date published: 2019-06-13

Can you stack a dryer and have a sidekick basin as well? If so what is the dimensions for the sidekick, washer & dryer stacked?

Asked by: YankeeRazorback
The LG SideKick™ Pedestal Washer, Model # WD100C* installs under the ENERGY STAR® Qualified LG 4.5 cu. ft. Ultra Large Smart wi-fi Enabled Front Load Washer, Model # WM3700HVA or other compatible LG Front Load Washers much like an LG Laundry Pedestal does. The SideKick™ Pedestal Washer shares its water supply and drain with the washer and the washers have an activation switch that allows the pedestal to turn on. It cannot be installed under a dryer. You can stack the dryer on an LG Laundry Pedestal and stack a compatible LG Front Loading Washer on the SideKick™ Pedestal Washer and have the units side-by-side...^IFV
Answered by: Ivanf
Date published: 2019-06-04

Why doesn't this model have an interior tub light, but the matching dryer does?

Asked by: billkexel
Regrettably, we are not privy to the decisions that go into the designing of products to provide an official response to why the ENERGY STAR® Qualified LG 4.5 cu. ft. Ultra Large Smart wi-fi Enabled Front Load Washer, Model # WM3700HWA does not have an interior light. You may find tub lights in Top Loading Washers, but Front Loading Washing machines, in general, do not have tub lights and that might have a lot to do with how the water fills the tub and unlike dryers where you do not have to worry about special seals to prevent the ingress of water, that is a big concern in a front load washing machine...^IFV
Answered by: Ivanf
Date published: 2019-06-04

We just purchased this model and was wondering why the wet detergent fill compartment must be emptied before doing another load. Its annoying to take the tray to the sink each time to empty the water.

Asked by: blingner
It only does this once in a while on mine. I just dump the water, and move on.
Answered by: billkexel
Date published: 2019-06-03

Does LG have any front-loading washers and dryers with a lighted drum?

Asked by: GininTN
I bought this washer and was very dissapointed that it did not have an interior-tub light, but the matching dryer I bought does. Go figure.
Answered by: billkexel
Date published: 2019-06-03

How does the extra rinse cycle work? Does it fill the tub twice to rinse?

Asked by: Evvon
The extra rinse cycle on this ENERGY STAR® Qualified LG 4.5 cu. ft. Ultra Large Smart wi-fi Enabled Front Load Washer, Model # WM3700HWA is an extra rinse cycle that you can select which will be added to your selected wash cycle when the regular rinse cycle ends. Pressing the Extra Rinse button twice will add two additional rinses to the wash cycle...^IFV
Answered by: Ivanf
Date published: 2019-05-22

What is the alergin setting used for on wm3700hva? What is the sanitary setting used for on the wm3700hva

Asked by: Tacky d an k
The Allergiene™ cycle on the ENERGY STAR® Qualified LG 4.5 cu. ft. Ultra Large Smart wi-fi Enabled Front Load Washer, Model # WM3700HVA when selected automatically incorporates steam into the cycle. The Allergiene™ cycle helps reduce dust mite populations and helps to significantly reduce allergens in bedding and clothing. Due to the higher energy and temperatures used, the Allergiene™ cycle is not recommended for wool, silk, leather, or any other delicate or temperature sensitive items. It can be used to wash cloths that accumulate dust - like pillow covers, and bed sheets - or items that deserve special care - like baby clothes and undergarments. The Sanitary cycle uses extreme temperature changes - extra hot during the wash, cold during the rinse - to clean the dirtiest clothing items in the house. It reduces 99.9% of bacteria on laundry through the high temperatures. The default wash/rinse temperature is Extra Hot/Cold with the wash temperature being approximately 147˚F. The approximate cycle time is 176 minutes, which will vary based on the soil level, load size, and selected options...^IFV
Answered by: LGJoel
Date published: 2019-02-11

Why is Water Plus only listed in the French section of the User Manual? If this is only available in certain countries, then the website should reflect this instead of misleading customers. There doesn't appear to be a button for it either.

Asked by: jamesxa
Hello and thank you for letting us know. This model does not have an option to add water, however, the Add Garment feature automatically adds water. Just make your selections and once the unit starts, press add garment and then resume and the unit will add more water. Also, if you use the Bedding/Bulky cycle, it uses the most water of any cycle. ^AC
Answered by: Amber C
Date published: 2019-02-16
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