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Home > Laundry > Washers > Front Load (Tumble) > WM3420CW
LG WM3420CW - 27 Inch Smart Front Load Washer
LG WM3420CW - 27 Inch Smart Front Load Washer
LG WM3420CW - 27 Inch Smart Front Load Washer
LG WM3420CW - 27 Inch Smart Front Load Washer
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LG WM3420CW
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LG
WM3420CW
27 Inch Smart Front Load Washer with 4.5 Cu. Ft. Capacity, ColdWash™, 6Motion™ Technology, NeverRust™ Tub, AI DD®, TrueBalance® System, and ENERGY STAR® Certified

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quick specs
Stackable: Yes
Width: 27 Inch
Depth: 30 1/4 Inch
Height: 39 Inch
Capacity: 4.5 Cu. Ft.
WiFi: Yes
Control Type: Digital and Knobs
Wash Cycles: 10
Steam Cycle: No
Sanitize Cycle: No
Allergy Cycle: No
Warranty Terms: 1 year
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MSRP: $1,049.00
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In Stock Items labeled IN STOCK will ship within 2 business days from our East Coast warehouse. Actual delivery times will vary based on your location. If you are ordering multiple items and not all items are IN STOCK, the order will ship when all items are available unless you select the SPLIT SHIP option in checkout. IN STOCK may not apply to multiple quantities of the same product.
You Will Also Need:
6 ft. Braided Stainless Steel Washer Fill Hoses
+ $29.99
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LG: 2-Year Warranty Via the LG ThinQ App Expires 12/31/2026
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Product Information
Brand: LG
Model: WM3420CW
Warranty Terms: 1 year
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Appearance
Type: Front Load
Color: White
Stackable: Yes
Location of Controls: Front
Dimensions
Width: 27 Inch
Depth: 30 1/4 Inch
Height: 39 Inch
Capacity: 4.5 Cu. Ft.
Smart
WiFi: Yes
Alexa: Yes
Google Home: Yes
Remote Control: Yes
Remote Monitoring: Yes
Remote Diagnostics: Yes
App Integration: ThinQ
Smart Accessory Required: No
AI Technology: Yes
Features
Control Type: Digital and Knobs
Temperature Settings: 5
Bleach Dispenser: Yes
Fabric Softener Dispenser: Yes
Stainless Steel Drum: Yes
Leveling Legs: Yes
Maximum Spin Speed (RPM): 1,260
Interior Light: No
Includes Hoses: No
Water Heater: No
Usage: Residential
Smart Home / App Compatible: Yes
Smart Home Protocol / App Compatible: ThinQ
Remote Access: Yes
Cycles
Wash Cycles: 10
Wash Options: 8
Steam Cycle: No
Sanitize Cycle: No
Allergy Cycle: No
Pet Cycle: No
Add Wash: Yes
Bulky/Large Items Cycle: Yes
Delicate Cycle: Yes
Extra Rinse Cycle: Yes
Heavy Duty Cycle: Yes
Permanent Press Cycle: Yes
Pre-Wash Cycle: Yes
Programmable Cycle: Yes
Quick Wash Cycle: Yes
Cold Water Cycle: Yes
Technical Details
Energy Star Rated: Yes
CEE Rating: Tier III
ADA Compliant: No
Voltage: 120 Volts
GTIN
UPC: 048231349895
EAN: 0048231349895
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Description

27 Inch Smart Front Load Washer with 4.5 Cu. Ft. Capacity
Beneath the beautiful exterior of these front load washers are LG innovations that are built to perform. 6Motion™ technology uses up to 6 different wash motions, each designed to get clothes cleaner and help them last longer. Built-in intelligence uses AI technology and advanced sensors to detect fabric texture and load size to automatically select the perfect settings. Expand the limits of your laundry room with the LG ThinQ® 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.

Specifications

Summary
Type:  
Front Load Washer
Capacity:  
4.5 cu.ft
Matching Electric Dryer:  
DLE3420W
Matching Gas Dryer:  
DLG3421W
Color:  
White (W)
Wash Programs
No. of Programs:  
10
Wash Programs:  
Normal, Perm. Press, Heavy Duty, Delicates, Cold Wash™, Quick Wash, Bedding, Tub Clean, AI Wash, Downloaded
No. of Options:  
8
Options:  
Pre-wash, Delay Start, Extra Rinse, Wi-Fi, Remote Start, Spin Only, Control Lock, Signal
Wash Details
No. of Wash/Rinse Temps:  
5
Wash/ Rince Temps:  
Hot, Semi Warm, Warm, Cold, Tap Cold
No. of Spin Speed:  
5
Spin Speeds:  
Extra High, High, Medium, Low, No Spin
Water Levels:  
Load Sensing
No. of Soil Levels:  
3
Appearance
Control & Display:  
Electronic Control Panel with LED Display
Touch Buttons:  
Yes
Dial-A-Cycle®:  
Yes
Fabric Care Features
AI DD®:  
Yes
TurboWash® 360 Technology:  
No
TurboWash® 2.0 Technology:  
No
Steam Technology:  
No
Allergiene® Cycle:  
No
Cold Wash Option:  
Yes
Soil Level Sensor:  
No
Convenience Features
Vibration sensing (Cabinet Vibration sensor):  
Yes
TrueBalance® Anti-Vibration System:  
Yes
4 Tray Dispenser:  
Prewash, Main Wash (with liquid detergent cup), Bleach, Fabric Softener
End of Cycle Signal:  
Yes
LoadSense:  
Yes
Control Lock:  
Yes
Auto Suds Removal:  
Yes
Leveling Legs:  
4 Adjustable Legs
Drumlight:  
No
Forced Drain System:  
Yes
Add Garment Indicator:  
Yes
Internal Water Heater:  
No
Smart Features (ThinQ® TECHNOLOGY)
Smart Diagnosis (v3.0):  
Yes
Wi-Fi:  
Yes
NFC Tag On Technology:  
No
Energy Monitoring:  
Yes
Tub Clean Coach:  
Yes
Motor
Motor Type:  
Inverter Direct Drive Motor
Max RPM:  
1260
Axis:  
Horizontal
Materials and Finishes
NeveRust® Stainless Steel Drum:  
Yes
Cabinet:  
Painted Steel
Control:  
Panel Plastic
Top Plate:  
Painted Steel
Door / Rim:  
Glass/White Rim
Door Cover:  
Clear Round Cover
All Available Colors:  
White (W)
Energy
ENERGY STAR® Most Efficien:  
t Yes
ENERGY STAR® Certified:  
Yes
CEE Tier:  
3
IMEF:  
3.1
IWF:  
2.9
Power Source
Ratings:  
UL Listed
Electrical Requirements:  
120 V, 60 Hz, 6 A
Type:  
Electric
Plug:  
Included
Plug Type:  
3 Prong
Options/ Accessories
Pedestal:  
WDP6W
Pedestal:  
(WxHxD) 27" x 13 5/8" x 28" (43 7/8" D with door open)
LG Sidekick® Pedestal Washer:  
WD300CW
LG Sidekick® Pedestal Washer (WxHxD):  
27 x 14 1/8 x 30 3/4 (50 1/2 D with door open)
Stacking Kit:  
KSTK4
Water Supply Hoses (Hot &Cold) Included:  
No
Limited Warranty
Parts and Labor:  
1 Year
Direct Drive Motor:  
10 Years
Drum:  
3 Years

Features

4.5 Cu. Ft. Capacity
  • Say never again to never-ending piles of laundry—this ultra large capacity washer fits more clothes in every load and helps you power through laundry day in less time.
ColdWash™
  • Saving energy doesn’t have to mean compromising on cleaning with the ColdWash™ option.
6Motion™ Technology
  • Uses up to 6 different wash motions, each designed to get clothes cleaner and help them last longer.
NeverRust™ Tub
  • Unlike tubs made from porcelain or plastic, the LG NeveRust® Stainless Steel Tub avoids the chips and nicks that can snag fabrics and ruin clothing.
AI DD® Built-In Intelligence
  • AI DD™ uses artificial intelligence to determine the weight and fabric softness to select the optimal was pattern.
TrueBalance® Anti-Vibration System
  • TrueBalance Anti-Vibration system is designed to minimize washer vibration for smooth, quiet performance in just about any room of the house - even on the second floor.
LG SideKick® Compatible
  • Add the one-of-a-kind LG SideKick® pedestal washer and wash small loads that just can’t wait in the compact washer below while you do a big load up top.
Additional Features
  • ENERGY STAR® Certified
Key Features
AI DD® 2.0
AI DD 2.0 (Artificial Intelligence Direct Drive) is an innovative washing machine technology that enhances the laundry experience by intelligently detecting fabric types and load sizes.
ColdWash™
Saving energy doesn’t have to mean compromising on cleaning with the ColdWash™ option. Powered by the LG Direct Drive Motor and 6 motion™ technology, it’s ideal for cleaning all types of clothes—even those you normally wash in warm water. Can be used with almost any wash cycle and virtually all fabric types.





NeveRust™
NeveRust™ is a stainless steel drum / tub surface used in LG washers and dishwashers, engineered to resist chipping, rusting, and corrosion over time.
TrueBalance™
LG's TrueBalance™ is an anti-vibration / balance system built into its washers that helps reduce shaking, noise, and movement during spin cycles.
California residents see Prop 65 WARNINGS

Current Rebates

LG: 2-Year Warranty Via the LG ThinQ App Download Form

LG LG: 2-Year Warranty Via the LG ThinQ App

When You Buy
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You Get
FREE 2-Year Limited Manufacturer's Warranty
Expiration Date
12/31/2026
Savings Type
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Receive a FREE 2-Year Limited Manufacturer's Warranty on eligible LG appliances purchased April 9 – December 31, 2026.



LG SIGNATURE® and LG STUDIO® products are not eligible for this promotion.



Register your eligible appliance within 60 days of purchase by connecting it to the LG ThinQ® app.



Download the LG ThinQ app, create an account, connect your appliance to Wi-Fi, and upload your proof of purchase to complete your claim.

Please allow up to 14 days after claim approval for your 2-year warranty to appear in your LG ThinQ account.



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Manuals & Guides

Owners Guide
Specification Guide
Energy Guide
Warranty Guide
In Stock
Items labeled In Stock will ship within 2 business days from our East Coast warehouse. Actual delivery times will vary based on your location. If you are ordering multiple items and not all items qualify for In Stock, the order will ship when all items are available to ship. In Stock may not apply to multiple quantities of the same product.