LG - 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology - White
About this product
Featuring 6Motion technology, this washer uses up to 6 different wash motions to expertly scrub big loads of jeans or gently clean delicates, based on the cycle you select. Ultra large capacity helps you save time and wash less—save even more with our energy-smart ColdWash option that cleans without compromise. Includes bonus features like built-in intelligence that takes the guesswork out of laundry and LG ThinQ smart technology that keeps you connected while you’re on the move.
Specifications
- Color FinishWhiteProduct Height39 inchesProduct Width27 inchesProduct Depth30 1/4 inchesDepth With Door Open55 inchesCapacity4.5 cubic feetHigh-EfficiencyYes
Features
4.5 cu. ft. Ultra Large 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. Bring on big loads of towels or jeans -this 4.5 cu. ft. washer fits more in every load up to 20 lbs.
6Motion Technology
Based on the cycle you select, LG 6Motion technology uses up to 6 different wash motions, each designed to get clothes cleaner and help them last longer. Options range from a scrubbing PowerMotion that helps to dissolve stains to the gentle Swinging motion that’s ideal for delicates.
ColdWash Technology
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.
LG ThinQ Smart Technology
The LG ThinQ app offers control and convenience for smart LG appliances to help you simplify life and enjoy the comforts of home. Manage and monitor your washer remotely, track and download cycles, connect with Google or Alexa voice assistants, and access smart diagnosis, customer support, and much more.
Built-In Intelligence: AI Fabric Sensor / Smart Pairing
Forget about endless sorting or toggling through cycles—built-in sensors use AI technology to detect fabric texture and load size, then automatically select the right wash motions, temperatures and more for advanced fabric care. With Smart Pairing, the washer can even tell the dryer to select a compatible drying cycle¹, making it the ultimate laundry hack.
LG ThinQ UP
ThinQ UP enabled smart appliances may receive software updates for new downloadable features and enhancements to be sent wirelessly to the appliance. Choose which features you want and customize your appliance based on your lifestyle and personal preferences.
LG ThinQ Care
Available within the LG ThinQ app, ThinQ Care sends proactive usage, maintenance, and diagnostic alerts to your smartphone, notifying you of potential issues and helping you keep your smart LG appliances running smoothly.
NeveRust Stainless Steel 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.
True Balance Anti-Vibration System & LoDecibel Quiet Operation
Run the washer whenever you want - LG 's True Balance Anti-Vibration and LoDecibel systems are designed for quiet operation that keeps even big loads in balance to reduce washer noise and vibration. A must-have for main-floor or second-floor laundry rooms.
Direct Drive Motor 10-Year Limited Warranty
Backed by a 10-year limited warranty, the LG Direct Drive Motor delivers peace of mind with every load. Fewer moving parts means less noise and vibration, greater stability and durable performance you can depend on for years to come.
ENERGY STAR Certified
This LG high efficiency washer uses far less water and energy than a conventional washer for savings that add up with each load. Get additional savings with load-sensing technology that adjusts water levels and wash times or by adding the ColdWash option to almost any cycle.
Closet Depth
LG closet-depth² washers and dryers are worth showing off, but when space dictates otherwise it’s good to know they’ll easily fit in almost any closet with plenty of room to close the closet door. Install the pair side-by-side, or get a stacking kit and install the dryer over the washer to save even more space.
TubClean System
With the LG TubClean system, you don’t have to worry about mold, mildew or musty odors. Simply select the TubClean cycle, add liquid bleach or other cleaner and let the washer do the work to thoroughly clean and dry the tub, door and gaskets. Run it every month or so to help keep your washer—and your laundry—clean and fresh.
LG SideKick Compatible (27")
Add the one-of-a-kind LG SideKick 27" pedestal washer³ and wash small loads that just can’t wait in the compact washer below while you do a big load up top. Warm and cold settings and 6 cycles let you care for all types of items, from delicates and hand washables to workout wear and baby clothes. Elevate your washer for easier loading and unloading.
Reviews
Rating 4.8 out of 5 stars with 19 reviews
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products
Featuring 6Motion technology, this washer uses up to 6 different wash motions to expertly scrub big loads of jeans or gently clean delicates, based on the cycle you select. Ultra large capacity helps you save time and wash less—save even more with our energy-smart ColdWash option that cleans without compromise. Includes bonus features like built-in intelligence that takes the guesswork out of laundry and LG ThinQ smart technology that keeps you connected while you’re on the move.
When sleek good looks meet powerful cleaning and intelligent performance, you’ll experience laundry on a whole new level. TurboWash 360° cleans larger loads fast so you get more done while enjoying the same great washing performance. And forget about endless sorting—AI technology uses built-in sensors to detect fabric texture and load size and then automatically selects the right settings for advanced fabric care. Activate Smart Pairing in the ThinQ app, and the washer can even tell the dryer to select a compatible drying cycle, making it the ultimate laundry hack. The gentle power of steam reduces common household allergens in fabrics by more than 95%*. Durable and stylish tempered glass door with rose gold accents adds the perfect finish. *Based on certification by the Asthma and Allergy Foundation of America (AAFA)
Our intuitive dial control with LCD display and built-in intelligence that gets smarter with every use make it easy to give favorite clothes the care they deserve. AI technology and advanced sensors detect fabric texture, load size and soil level to automatically select the perfect settings. All wrapped in a sleek, minimalist design—plus turbo-charged cleaning that puts time back into your day.
Samsung’s Energy Star Certified Front Load washer has 4.5 cu. ft. capacity to fit more in every load and cut down on laundry time. It is equipped with Vibration Reduction Technology+ to reduce noise for quiet washing and features Self Clean+ to eliminate 99% of bacteria that can form in the drum.1
| Pros for LG - 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology - White | |||
|---|---|---|---|
| There were no pros for this product— | Overall Performance, Noise Level, Ease of use, Capacity, Spin Cycle | Overall Performance, Noise Level, Ease of use, Capacity, Design | Overall Performance, Noise Level, Ease of use, Capacity, Price |
| Cons for LG - 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology - White | |||
| There were no cons for this product— | Smell, Door, Installation | Installation, Control Panel, Display, Size, Start Button | Door, Installation, Smell, Washer Performance, Spin Cycle |
Specs
Questions & Answers
Is it common for front loaders like this to vibrate/shake a lot during a spin cycle? We turned it on for the first time, put a rather small load of laundry in, and when it got to the spin portion it was loud and visibly moving when looking at it.
Answered by LG Digital Customer CareDid you make sure to remove all of the shipping bolts from the Energy Star® Certified LG 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash™ Technology - White, Model: WM3420CW, after unpacking it? Failure to remove shipping bolts and retainers may cause severe vibration and noise, which can lead to permanent damage to the washer. 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 floor under the washer must not slope more than 1 inch (2.5 cm) from front to back or side to side. Make sure that the floor is clean, dry, and free of dust, dirt, water, and oil so the leveling feet cannot slide easily. Leveling feet that can move or slide on the floor can contribute to excess vibration and noise. If the floor has too much flex, reinforce it to make it more rigid. If the floor is not solid, it may cause severe vibration and noise...^Ivan.
But it's here this model was produced? What year was it manufactured?
Answered by LG Digital Customer CareWhen you ask, "But it's here this model was produced?", are you inquiring about the country of manufacture for this Energy Star® Certified LG 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology - White, Model # WM3420CW? The LG Model # WM3420CW front-load washing machine is manufactured at LG’s multi-million dollar smart facility in Clarksville, Tennessee. LG produces the vast majority of its front-load and top-load washing machines intended for the North American market at this advanced Clarksville-Montgomery County plant. The facility is widely recognized for its automation and was named the first U.S. home appliance "Lighthouse Factory" by the World Economic Forum due to its heavy use of AI, robotics, and automated guided vehicles. While a small percentage of LG laundry components or specialized models may occasionally be imported from facilities in South Korea depending on global supply chain shifts, the standard WM3420CW units sold in the United States carry the "Made in the USA" stamp. To double-check the exact origin of your individual machine, you can open the washer door and look along the inner door frame or the side edge of the cabinet. You will find a factory label listing the model number, serial number, and the exact country of manufacture, or check the manufacturing facility details, which are also printed on the outer shipping label of the carton the washer is shipped in. As for the date of manufacture, you need to check its serial number, As a model line, the LG WM3420CW is a standard model manufactured throughout 2026. Because these machines are continuously produced, individual units will have different production dates. You can find the exact month and year your specific machine was built by looking at the first three digits of the serial number on your washer's factory sticker: The serial number can also be found on a white barcode sticker containing both the model number and the serial number at the inner door jamb or the rim of the shell frame...^Ivan.
What is the model number
Answered by LG Digital Customer CareThe model number for this Energy Star® Certified LG 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash™ Technology - White, is listed right under the title next to the SKU number as Model # WM3420CW...^Ivan.
Can I delay the start of a wash cycle on this washer?
Yes, you can delay the start with the delay start option.
This question and answer was generated by AI based on customer and product data.Is this washing machine energy star certified?
Yes, this washing machine is energy star certified.
This question and answer was generated by AI based on customer and product data.
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