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LG - SIGNATURE 5.8 Cu. Ft. High Efficiency Ventless Smart Front Load Washer Electric Dryer Combo with Steam and ezDispense - Brushed Black Steel

Model: WM9998HBA
SKU: 6668950

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Need-haul away?

When we deliver your new Appliance, we can haul away your old one and make sure it’s properly recycled.
  • We can also move it to another location in your home if the path is clear of obstructions.
  • We can’t remove doors from your home (or a product) to make an item fit through a doorway
  • Relocated appliances will not be connected to utilities
Specifications
  • Color Finish
    Black steel
    Product Height
    40 3/4 inches
    Product Width
    29 inches
    Product Depth
    31 1/8 inches
    Capacity
    5.8 cubic feet
    High-Efficiency
    Yes
  • Key Specs
    • Color Finish: Black steel
    • Product Height: 40 3/4 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 29 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 31 1/8 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Capacity: 5.8 cubic feet
    • High-Efficiency: true (Washers with this label feature technology meant to use less water. High Efficiency (HE) washers may also be larger in capacity. Using High Efficiency (HE) detergent in these washers is highly recommended as they are designed to be quick-dispersing and operate in low water conditions by producing less suds, requiring less detergent. Not using the recommended detergent can lead to additional rinse cycles and increased water usage.)
    • Pedestal Model Compatibility: Sidekick Pedestal Washer: WD405CB / Pedestal WDP8B
    • Washer/Dryer Combo Type: All-in-one units
    • App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
    • Works With: Amazon Alexa, Google Home (Compatible with or able to be connected to other smart devices or applications.)
  • General
    • Brand: LG
    • Model Number: WM9998HBA
    • Product Name: SIGNATURE 5.8 Cu. Ft. High Efficiency Ventless Smart Front Load Washer Electric Dryer Combo with Steam and ezDispense
    • Color: Brushed Black Steel
    • Color Finish: Black steel
    • Commercial Merchandise: false (Commercial Merchandise refers to major appliances that are officially tested, certified, and labeled for commercial or industrial us, such as those used in restaurants or professional facilities. These products must comply with strict DOE performance standards. Misusing this label or omitting required energy disclosures may result in federal penalties.)
    • Vendor Collection: LG SIGNATURE (Part of a line of different product types, like kitchen appliances.)
  • Dimensions
    • Product Height: 40 3/4 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 29 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 31 1/8 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Depth With Door Open: 54 5/16 inches (Measurement from the back of the product to its front, with door fully open.)
    • Product Weight: 263 pounds (The out of box weight of the item.)
  • Capacity
    • Capacity: 5.8 cubic feet
  • Performance
    • High-Efficiency: true (Washers with this label feature technology meant to use less water. High Efficiency (HE) washers may also be larger in capacity. Using High Efficiency (HE) detergent in these washers is highly recommended as they are designed to be quick-dispersing and operate in low water conditions by producing less suds, requiring less detergent. Not using the recommended detergent can lead to additional rinse cycles and increased water usage.)
    • Vibration Reduction: true (Additional features, such as sensors that adjust spin speeds or weights that counter unbalanced loads, help to minimize vibration for smoother, quieter operation.)
    • Maximum Spin Speed: 1300 revolutions per minute (This is the maximum spin speed of the tub in the final cycle. Higher revolutions per minute (RPM) will remove the water out of the clothes more quickly and effectively which can reduce drying time.)
  • Features
    • Steam Function: true (In washers, this feature may be employed before, during, or after the main wash cycle. Steam aids in stain removal, activating detergent, sanitizing, and softening wrinkles. In dryers, this feature can be used to remove wrinkles or quickly freshen clothing items.)
    • Fingerprint Resistant: false
    • Integrated Water Heater: false
    • Automatic Temperature Control: true (This feature regulates hot and cold temperatures of the water or air within the appliance in order to keep them in the optimal range for each cycle.)
    • Child Lock: false (Setting that allows appliance to be temporarily locked to prevent use.)
    • Delay Start: true (Allows you to program the appliance to automatically run at a later time. This feature helps you coordinate with your household’s water needs, noise preferences, and more. Additionally, operating your appliance during off-peak hours may reduce energy costs.)
    • End-Of-Cycle Signal: true (An audible alert and/or visual indicator that notifies you when a pre-selected cycle is complete.)
    • Time-Remaining Display: true
    • Bleach Dispenser: false
    • Fabric Softener Dispenser: true
    • Pre-Wash Detergent Dispenser: false
    • Second Rinse: true
    • Interior Light(s): true
    • Dryer Heating Source: Electric
    • Sensor Dry: true (Feature that automatically senses the load's moisture level and adjusts the drying cycle time as needed.)
  • Compatibility
    • Pedestal Model Compatibility: Sidekick Pedestal Washer: WD405CB / Pedestal WDP8B
  • Design
    • Washer/Dryer Combo Type: All-in-one units
    • Exhaust Vent Location: Ventless
    • 4-Way Venting: false (The appliance has four possible vent locations (right, left, front, or rear), which allows for placement versatility.)
    • Control Type: Touchpad
    • Display Type: LED
    • Drum Material: Stainless steel
    • Door Style: Left swing
    • Window: true
    • Drying Rack: false
  • Cycle
    • Number of Wash/Rinse Cycles: 31
    • Wash/Rinse Cycles: Normal, AI Wash & Dry, Quick Wash, Timed Dry, Heavy Duty, Bedding, Towels, Jeans, Delicates, Perm. Press, Allergiene, BrightWhites, Sanitary, Overnight Care, Rinse & Spin, Spin Only, Activewear, Hand / Wool, Air Dry, Quick Tub Rinse, Tub Clean, Small Load, Large Load, XL Load, Kids Wear, Color Care, Sweat Stains, Swimwear, Dresses, Down Jacket Refresh, Blanket Refresh
    • Number Of Drying Cycles: 2
    • Drying Cycles: AI Wash & Dry, Timed Dry (Dryers typically have multiple pre-programmed drying cycles to accommodate various fabrics and materials. These often include Normal/Regular, Permanent Press/Wrinkle Reduction, Heavy Duty, and Delicate/Gentle.)
    • Options and Programs: TurboWash, Steam, Wrinkle Care, Pre-wash, Remote Start, Delay Start, Wi-Fi, Extra Rinse, Control Lock, Drum Light, Cold Wash, Detergent Level, Softener Level, Signal, Cycle List Edit, Cycle Optimization, Softener Tank Use, Damp Signal, Dry Start Signal, Pre-dry Spin
    • Number of Wash Temperatures: 5
    • Number of Rinse Temperatures: 1
    • Number of Drying Temperatures: 3
    • Temperature Settings: Damp, Normal, Dry
    • Number of Spin Speeds: 5
    • Soil Levels: 5 (Washers with the option to select the soil level will employ different wash cycles to optimally clean the respective load. Most have three options: light, normal, or heavy.)
  • Included
    • Power Cord Included: true (Connects your product to an electrical outlet, allowing for immediate use (provided that other installation requirements are met).)
    • Fill Hoses Included: false
    • Drain Hose Included: true
  • Filter Info
    • Self-Cleaning Filter: false (Filter that requires little to no cleaning maintenance.)
  • Electrical
    • Estimated Annual Electricity Use (Washer): 108 kilowatt hours (Predicted amount of electricity needed to operate the washing machine under average conditions for one year.)
    • Estimated Annual Operating Cost (Washer): 16 United States dollars (Predicted cost of operating the washine machine under average conditions for one year.)
    • Amperage: 12 amperes (Strength of electrical current.)
    • Voltage: 120 volts (Amount of power needed to support an electrical current.)
  • Certifications Listings & Approvals
    • ENERGY STAR Certified: true (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
    • ADA Compliant: false (Meets standards set by the Disabilities Act (ADA) Standards for Accessible Design)
    • ANSI Certified: false (Meets the requirements of the American National Standards Institute.)
    • Consortium for Energy Efficiency (CEE) Rating: CEE Tier 3
    • Product Safety Certifications and Standard(s): UL Listed (Lists the applicable certifications and/or standards, as stated by the manufacturer, in which the product has met the requirements for the assurance of quality and safety.)
    • NSF Listed: false (Meets the National Sanitation Foundation's standards for public health protection.)
  • Warranty
    • Warranty - Parts: 2 years
    • Warranty - Labor: 2 years
  • Connectivity
    • App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
    • Works With: Amazon Alexa, Google Home (Compatible with or able to be connected to other smart devices or applications.)
    • Wireless Connectivity: Wi-Fi (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
  • Other
    • UPC: 195174129319

This all-in-one design is simplicity defined, with the ability to wash and dry large loads, effortlessly, in as fast as 89 minutes¹, among the fastest ventless washer/dryer combos in the market. With no need to transfer laundry, it quietly conserves your energy while using efficient heat pump technology that lessens energy use with every cycle. Understated, seamless exterior includes an intuitive 7” LCD panel that responds to your touch. Built-in intelligence provides the utmost fabric care.

  • 2-in-1 Washer/Dryer Combo: Load, set and go. In as fast as 89 minutes, your clothes will be clean, fresh and dry¹, among the fastest ventless washer/dryer combos in the market. With the all-in-one design you can get laundry done while you get on with your day, without having to stop what you’re doing to move clothes between 2 machines.
  • 5.8 cu. ft. Mega Capacity: Say never again to never-ending piles of laundry—this mega capacity washer/dryer combo is the largest front load all-in-one unit with heat pump technology² so you can fit more clothes in every load and power through laundry day in less time. How big is 5.8 cu. ft.? Big enough to fit a king-size comforter and more in a single load, for big time savings every week.
  • Sleek Ventless Design: Space-saving 2-in-1 configuration, ventless design and standard 120v plug means it can be installed virtually anywhere. No detail was overlooked in this all-in-one’s sleek, modern style. The LG SIGNATURE WashCombo flat front design, brushed black steel finish and tinted, tempered glass door brings a premium point of view to your laundry space.
  • Dual Inverter Heat Pump Technology: When it comes to powerful, reliable and efficient performance, there’s just no comparison. With LG SIGNATURE Dual Inverter Heat Pump technology, you’ll enjoy quiet operation and energy efficiency—using up to 52% less energy³. The low temperatures are easier on clothes and can help them look their best for longer.
  • 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/dryer combo 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, Weight, and Soil Level Sensors and AI QuickLoadSense: Forget about endless sorting or toggling through cycles—built-in sensors use AI technology to detect fabric texture, soil level and load size, then automatically select the right wash/dry motions, temperatures and more for advanced fabric care. With AI QuickLoadSense instant time display, estimated cycle time is displayed as soon as the door is closed.
  • Direct Drive Washing and Drying Technology: Featuring a Direct Drive motor, this all-in-one combo provides even performance and precise tumbling motions that are extra kind to delicates. Based on the cycle you select, LG 6 Motion technology uses up to 6 different wash and dry motions, each designed to get clothes cleaner and help them last longer. Better than belt-driven motors—no belts, no pulleys, no worries. What else can you count on? The peace of mind of a 10-year limited warranty.
  • Modern Design and Touch Controls: Go beyond ordinary buttons and dials with an intuitive 7" LCD touchscreen that simplifies laundry and places total control at your fingertips. The elegant panel perfectly complements the modern, flat front design, luxe brushed steel finish and tinted, tempered glass door.
  • ezLintFilter: Conveniently located right on top of the WashCombo All-in-One, the ezLintFilter design allows you to easily remove lint after every load. Simply push out the filter from its compartment and the lint can automatically be disposed into a wastebasket without manual removal.
  • Auto Cleaning Condenser: Unlike some dryers that require manual cleaning of the condenser for optimal performance, LG SIGNATURE Auto Cleaning Condenser does the work for you. Using water extracted during the drying cycle and supplied directly from tap water, it powerfully flushes away lint and debris using jet sprays/multiple nozzles every time you dry for better airflow, better drying and enhanced energy efficiency—automatically.
  • Advanced Washing: TurboWash 360° / Allergiene Wash Cycle: From mega capacity to top-of-the-line innovations, this all-in-one combo unit delivers the advanced cleaning performance you need. TurboWash 360° powers through laundry in less time, thanks to five jets with variable sprays that deliver a wash cycle as fast as 30 minutes⁴. The Allergiene cycle uses the gentle power of steam to reduce common allergens such as dust, pet dander and pollen in fabrics—perfect for bedding, baby clothes and more.
  • ezDispense Automatic Dispenser: No more digging out detergent and fabric softener every time you do laundry—with ezDispense automatic dispenser, just fill the reservoirs once and you’re set for up to 20 to 36 wash cycles⁵ with the versatility of using detergent and softener or detergent only. It adds just the right amount for each load size—at just the right time—and will even send an alert to your smartphone when it’s time to refill⁶.
  • LG SIGNATURE SideKick Compatible: Looking to run more than one load at a time? LG SIGNATURE offers the only all-in-one combo that’s compatible with the LG SIGNATURE SideKick⁷, which means you can add the mini pedestal washer and tackle two loads of laundry—both large and small—all at the same time. Discreet compact washer sits underneath the main machine and elevates the washer/dryer combo for easier loading and unloading.
  • 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.
  • 2-Year Limited Warranty on All Parts and Labor: All LG SIGNATURE appliances are backed by LG's 2-year limited warranty, so you can confidently enjoy this appliance for years to come.
Whats Included
  • WM9998HBA LG SIGNATURE 5.8 Cu. Ft. High Efficiency Ventless Smart Front Load Washer Electric Dryer Combo
  • Non-Skid Pads, Hole Caps, Wrench, Tie Strap and Elbow Bracket to secure drain hose
  • Nylon Brush
  • Lint Filter Mesh
  • Door Gasket Grille
  • Dryer Sheet Ball (Pet Care Dryer Ball)
  • Mesh Bag
  • Detergent Cup
  • Installation Guide
  • Owner Manual
Documents
  • Energy_Guide_PDF
Disclaimers
  • ¹Cycle time may vary depending on load type, weight and environment. Based on internal testing on WM9998 model in Quick Wash+Dry cycle, 10 lb. DOE standard load (January 2026).
  • ²Based on manufacturer's published specs of front load combos with heat pump technology (March 2026).
  • ³Based on internal testing on WM9998 model comparing LG conventional heater combo (WM3998) in Dry cycle, 8.45 lb. DOE standard load with 57.5% initial moisture content (January 2026). The results may vary depending on load type, weight and environment.
  • ⁴Based on internal testing of WM9998 Normal wash cycle, 8 lb. load (January 2026). The results may vary depending on load type, weight and environment.
  • ⁵Based on 9-10 lb. loads in Normal mode, up to 20 loads when using detergent and softener; up to 36 loads when using both compartments to dispense detergent only. Always use HE (High-Efficiency) detergent with this washer. Use the ezDispense Nozzle Clean function to periodically clean the reservoirs or before changing the softener reservoir to a detergent reservoir and vice versa.
  • ⁶Wi-Fi and LG ThinQ app required. Features subject to change. See lg.com for additional details and privacy information.
  • ⁷LG SIGNATURE SideKick sold separately.

Q: Does this unit dry faster than the Model: WM6998HBA? If so, what other performance upgrades does it have?

A: The Energy Star® Most Efficient / Energy Star® Certified LG SIGNATURE 5.8 cu. Ft. Ventless Smart Front Load Electric Heatpump™ All-in-One Washer Dryer Combo in Brushed Black Steel, Model # WM9998HBA, does not dry faster than the Energy Star® Most Efficient / Energy Star® Certified LG Ventless Washer/Dryer Combo LG WashCombo™ All-in-One 5.0 cu. Ft. Mega Capacity with Inverter HeatPump™ Technology and Direct Drive Motor, Model # WM6998HBA. They feature nearly identical drying times. Both machines can run a wash-and-dry cycle in as fast as 2 hours for a standard 10 lb load, though mixed or heavy loads can take longer (up to 3-4 hours).Both use ventless dual inverter heat pump systems that prioritize energy efficiency over fast dry times. The WM9998HBA is a premium, higher-end Signature model that features a larger capacity (5.8 cu. Ft. compared to the WM6998HBA's 5.0 cu. Ft.) and a more advanced LCD touchscreen, but the foundational drying mechanism remains the same...^Ivan.

Q: Are the AI features and the app optional? I'd rather not bother with either.

A: Hello, there! We appreciate you reaching out about your LG Washer (WM9998HBA). The great news is that the AI features and the LG ThinQ app are completely optional. You can operate the washer using the standard onboard controls without enabling AI functions or connecting it to the app. You can explore the full feature list and support details here: https://www.bestbuy.com/product/lg-signature-5-8-cu-ft-high-efficiency-ventless-smart-front-load-washer-electric-dryer-combo-with-steam-and-ezdispense-brushed-black-steel/JJ8VPZK85K. If you’d like any additional assistance, feel free to email us at lgdigitalcare@lg.sprinklrsupport.com. - Avril

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