Ventless Washer/Dryer Combo LG SIGNATURE WashCombo™ All-in-One 5.8 cu. ft. Mega Capacity with Dual Inverter Heat Pump Technology, Built-In Intelligence, ezDispense® and Touch LCD Control

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LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View
Memorial Day Price
New
LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View
Memorial Day Price
New
LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View
LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View

Ventless Washer/Dryer Combo LG SIGNATURE WashCombo™ All-in-One 5.8 cu. ft. Mega Capacity with Dual Inverter Heat Pump Technology, Built-In Intelligence, ezDispense® and Touch LCD Control

WM9998HBA
LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View
Memorial Day Price
New
LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View
Memorial Day Price
New
LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View
LG WM9998HBA SIGNATURE Washer Dryer Combo with AI Wash & Dry feature in black finish with America's Most Reliable badge - Front View
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Key features

  • Load, set and go—run a wash & dry cycle in as fast as 89 minutes, with no need to transfer laundry¹
  • The largest front load all-in-one unit with heat pump technology² helps you power through laundry
  • Space-saving 2-in-1 configuration, ventless design and standard 120v plug for flexible installation
  • Dual Inverter Heat Pump technology delivers energy efficiency—using up to 52% less energy³
  • Built-in intelligence takes out the guesswork—AI technology selects optimal wash/dry settings
  • Intuitive 7" LCD touchscreen simplifies laundry and perfectly complements the modern design
  • Get the ThinQ® app to access smart functions, ThinQ Care™ alerts and download new ThinQ UP™ features
Delivery

Add Professional Installation

pro & pro care members: FREE simple services and 50% off select complex services (dishwasher, over-the-range microwave, wall oven, hood). Cost deducted at checkout. Terms apply.

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Return Policy
Extended Coverage
1-year warranty with standard parts and labor included. Additional extended service plans available.
Specifications
download-guide iconDownload Energy Guide
  • Dryer Programs
  • Laundry Appliance Capacity
  • Summary
  • Energy
  • Washer Programs
  • Fabric Care Features
  • Laundry Appliance Convenience Features
  • Laundry Appliance ThinQ® Smart Features
  • Motor
  • Materials and Finishes
  • Power Source
  • Options/Accessories
  • Dimensions
  • Warranty & UPC
  • See All
    • Dryer Programs
    Dry Modes
    Energy, Normal
    Dryer Programs
    Dry Modes
    Energy, Normal
    Laundry Appliance Capacity
    Capacity
    5.8
    Summary
    Product Color
    Brushed Black Steel (B)
    Dial-A-Cycle™
    No
    Full Touch Electronic Control Panel with LED Display
    No
    Hard Buttons
    No
    Matching Dryer
    DLEX9900B/DLGX9901B
    Series
    LG SIGNATURE
    Steam
    Yes
    Touch Buttons
    Yes
    Type
    Front Load Washer & Dryer Combo
    Energy
    CEE Tier
    Tier3
    CEF
    7.6
    ENERGY STAR® Most Efficient
    Yes
    ENERGY STAR Certified
    Yes
    IMEF
    3.2
    IWF
    2.6
    Washer Programs
    No. of Washer Programs
    31
    Washer Programs
    Activewear, Hand / Wool, XL Load, Rinse & Spin, Bedding, Blanket Refresh, Color Care, Delicates, Dresses, AI Wash & Dry, Allergieneᵀᴹ, Heavy Duty, Jeans, Kids Wear, Large Load, Normal, Perm. Press, Quick Wash, Down Jacket Refresh, Sanitary, Small Load, Spin Only, Overnight Care, Air Dry, Sweat Stains, Swimwear, Towels, Tub Clean, Timed Dry, Quick Tub Rinse, BrightWhitesᵀᴹ
    No. of Washer Options
    20
    Washer Options
    Cycle List Edit, Cycle Optimization, Delay Start, Detergent Level, Drum Light, Signal, Control Lock, Softener Level, Softener Tank Use, TurboWash®, Wrinkle Care, Cold Wash, Pre-dry Spin, Extra Rinse, Damp Signal, Pre-wash, Remote Start, Steam, Dry Start Signal, Wi-Fi
    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
    Water Levels
    Load Sensing
    No. of Soil Levels
    5
    Fabric Care Features
    Turbowash®
    Yes
    Turbowash® Type
    Turbowash® 360°
    AI DD®
    Yes
    Soil Level Sensor
    Yes
    Allergiene™ Cycle
    Yes
    ColdWash™ Option
    Yes
    Sanitary Cycle
    Yes
    Steam Technology
    Yes
    Laundry Appliance Convenience Features
    Dispenser
    ezDispense cartridge (Detergent, Softener)
    Auto Suds Removal
    Yes
    Control Lock
    Yes
    Drum Light
    Yes
    End of Cycle Signal
    Yes
    Leveling Legs
    Yes
    LoadSense
    Yes
    True Balance® Anti-Vibration System
    Yes
    Laundry Appliance ThinQ® Smart Features
    Energy Monitoring
    Yes
    NFC Tag On
    No
    Remote Start and Cycle Monitor
    Yes
    SmartDiagnosis™ (v3.0)
    Yes
    ThinQ Care™
    Yes
    Tub Clean Coach
    Yes
    Wi-Fi
    Yes
    ThinQ UP™
    Yes
    Motor
    Axis
    Horizontal
    Max RPM
    1300
    Motor Type
    Inverter Direct Drive Motor
    Materials and Finishes
    All Available Colors
    Brushed Black Steel (B)
    Cabinet
    Painted Steel
    Control Panel
    X (Cabinet Cover One Piece)
    Door / Rim
    Glass/Chrome
    Door Cover
    Tempered Glass Door
    NeveRust™ Stainless Steel Drum
    Yes
    Top Plate
    VCM
    Power Source
    Washer Electrical Requirements
    120V, 12 Amps
    Ratings
    UL Listed
    Washer Power Source Type
    Electric
    Options/Accessories
    LG Sidekick™ Pedestal Washer
    WD405CB
    Pedestal
    WDP8B
    Stacking Kit
    N/A
    Dimensions
    Carton (WxHxD)
    31 3/8" x 44 3/4" x 33 3/4"
    Depth with Door Open
    54 1/4"
    LG Sidekick™ Pedestal Washer (WxHxD)
    29" x 14 1/8" x 30 7/8" (52 3/4" with drawer open)
    Pedestal (WxHxD)
    29" x 13 5/8" x 29 1/2" (44 3/4" D with door open)
    Product (WxHxD)
    29" x 40 3/4” x 31 1/8”
    Weight (Carton)
    280.0 lbs/127kg
    Weight (Product)
    263.0 lbs/119.3kg
    Width
    29"
    Warranty & UPC
    Direct Drive Motor
    10 Years
    Drum
    3 Years
    Parts and Labor
    2 Years
    UPC
    195174129319
    For owners
    Warranty Information
    Register Your Product
    Other Support Options
    Manuals and Downloads
    Help Library
    Request a Repair

    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.

     


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