Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at 239-433-3344, (800) 800-8356 ext 4 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

  • Professional Installation
    Call Now! (800) 800-8356

    Subscribe to Us on YouTube
    LG Logo

    LG SIGNATURE Top Control Smart wi-fi Enabled Dishwasher with QuadWash™

    Model # LUDP8997SN

     5.0 out of 5 (9 Reviews)

    Rebate Tag


    Request a QuoteRequest Quote

    The Art of Essence

    LG SIGNATURE stays true to the essence, delivering a new sense of life for the most discerning individual.

    Clean From Every Angle

    The QuadWash™ with Multi-Motion spray arms combined with the Inverter Direct Drive motor power cleans dishes from multiple angles to reach every nook and cranny.

    Easy Loading, Maximum Flexibility

    The EasyRack™ Plus system adjusts to just about any load of dishes to help ensure optimal cleaning performance. With one touch, you can change the height of the upper rack to three different levels. Easy to adjust on-the-fly, this racking system can shift to handle any challenge your dishes serve up.

    Dual Zone Wash

    This feature enables water to spray with two different intensities at the same time. Gently wash delicate dishes on the upper rack while simultaneously power washing heavy-duty pots and pans on the lower rack.

    Distinct Performance. Heightened Intelligence.

    Encounter the breathtaking beauty of design with LG SmartThinQ® technology that ensures uncompromising performance.

    Quiet Operation

    Doing the dishes shouldn't keep you up at night. LG's technological advances like the Inverter Direct Drive Motor and self-cleaning filtration system were designed with quiet in mind. At 40dB, this dishwasher is among the quietest on the market.


    • QuadWash™ System
    • EasyRack™ Plus
    • Height Adjustable 3rd Rack
    • ThinQ® Technology
    • Inverter Direct Drive Motor with 10 Year Warranty
    • SmartThinQ® Technology
    Lower Rack Dish Height Limit 12.5"
    Total Place Settings 15
    Upper Rack Dish Height Limit 7.1"
    Carton Dimensions (WxHxD) 28" x 34.7" x 29.6"
    Unit Dimensions (WxHxD) 23.75" x 33.6" x 24.6"
    Depth with Door Open 50.5"
    Product Weight (lbs) 83.8 lbs / 97.0 lbs
    CEE Tier 1
    ENERGY STAR® Qualified Yes
    Energy Use (kWh/Year) 269 kWh/Year
    Water Factor (WF) 2.8
    120°F Inlet Water Capability Yes
    3-Stage Filtration System Yes
    Detergent and Rinse-Aid Dispenser Yes
    End of Cycle Indicator Beeper + END Indication on Display
    Hidden Water Heater Yes
    Hybrid Condensing Drying System Yes
    LoDecibel™ Quiet Operation 40 dBA
    Number of Spray Arms 3 (Top, Upper, Lower)
    Overflow Detector Yes
    Rinse-Aid Indicator Yes
    Safety Float Switch (Leaks) Yes
    SenseClean™ Wash System Yes
    Slim Direct Drive Motor Yes
    Soil (Turbidity) Sensor Yes
    Status Indicator Yes
    Variable Spray Intensities Yes
    Vario Wash Yes
    Number of Wash Cycles 9 (Auto, Heavy, Delicate, Normal, Turbo, Download Cycle, Machine Clean, Rinse, Express)
    Number of Wash Options 8 (Dual Zone, Half Load, Energy Saver, High Temp, Extra Dry, Delay Start (up to 12 hrs), Control Lock, Night Dry)
    QuadWash® Yes
    BPA-Free Nylon Coated Racks and Tines Yes
    Cup Rack Yes
    Cutlery Baskets Yes
    EasyRack™ Plus System Yes
    Fold Down Tines Yes (Full Fold on Upper & Lower)
    Glide Rail Yes
    Height Adjustability Yes - Easy One Touch (3 Level)
    Rack Handle Yes (Upper/Lower)
    Stemware Holder Yes
    Available Colors Textured Steel™
    Electronic Controls Stainless Steel Touch Control Panel
    Handle Flush Hidden
    LED Tub Light Yes
    SignaLight™ Cycle Indicator Lights 3
    Tub Material NeveRust™ Stainless Steel
    Tub Insulation Damping Sheet, Sound Absorbing Material (felt), Base
    3rd Rack Yes
    Control Panel Top Control
    Handle Design Pocket Handle
    Height Adjustable 3rd Rack Yes
    LED Tub Light Yes
    QuadWash® Yes
    SmartThinQ® Yes
    Wi-Fi Yes
    UPC 48231022217

    LG Signature Appliance Bundle Rebate

    • Rebate Ends: 3/31/2021
    • Must be postmarked by: 4/30/2021
    • Description: Receive up to a $2,500 rebate with purchase of up to 4 qualifying LG Signature Major Appliances. Rebate form must be postmarked by 4/30/2021.
    • Download Rebate Form

    Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

    Appliances can be large, heavy, and expensive and you probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

    Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

    Questions or Comments?
    Call 239-433-3344, (800) 800-8356 ext 4 for assistance. Click Here for Home-Tech location and contact information.

    When it comes to buying new appliances for your home, there are a lot of choices available to you. We merchandise our store with careful consideration, striving to carry the appropriate variety of the best brands available today. We know everything about our products and are eager to help you find anything that fits your unique needs. Let us help you find your perfect match in size, features, price, and style.

    Finding the right appliance can be a daunting task, but one well worth the effort. You'll use your new appliances often, and they add value, style, and convenience to your home. Make sure you have the right information to help you make these important decisions. Shop with experts who can show you the best selection available and answer all your questions; come see our inventory of the latest trends and the most dependable manufacturers.

    Because we know our products inside and out, our service doesn't end with your purchase. We have long standing relationships with the most popular manufacturers and all the product knowledge to help you maintain healthy efficient appliances for the duration of their lives.

    Shop where you can see the finest selection of the best products available today to match your budget, needs, and style. Shop where experts can guide you through the myriad of options available and can answer your every question. Shop where you get exceptional service for the life of your appliance.

    Come shop with us!


    out of 5 (9 Reviews)

    88% of reviewers recommend this product.

    Excellent dishwasher

    Submitted by KarenO43 - 12/6/2020

    We purchased this dishwasher about two years ago from Costco along with the Signature 31 cf refrigerator and LG Studio gas range. We have been very pleased with all these appliances even though we are now waiting for replacement of the control panel on the dishwasher because some of the lighted elements have gone out. The support people have taken care of this issue and have arranged for a replacement as soon as the part is available. That aside we have been more than pleased with the performance of this dishwasher. It is efficient and powerful always giving clean sparkling dishes glassware pots and pans and utensils. I couldnt be more pleased.
    Originally posted on

    Yes, I recommend this product

    Gift box Incentivized Review

    • Features:
    • Quality:
    • Value:

    Quiet quick dry convenient

    Submitted by khaysjr - 12/6/2020

    We elected to go with LG signature refrigerator and range for our new home. The dishwasher was just an add-on that matched. However we have been extremely pleased at all of its bells and whistles on top of the standard features that are unbeatable. It is extremely roomy quiet and efficient. We love the third row for silverware how the racks can move up or down.
    Originally posted on

    Yes, I recommend this product

    Gift box Incentivized Review

    • Features:
    • Quality:
    • Value:

    LG Signature Dishwasher

    Submitted by Karen42 - 12/11/2019

    This dishwasher far outperforms our previous top-of-the-line dishwasher. Outstanding performance and lots of helpful features and so quiet that the only time we hear that its running is when its pumping water out. We love the adjustable third rack and the flexibility height tines etc. of the other two racks as well. Even the interior light is very helpful. Use a quality dishwasher detergent and rinse aid and everything will come out sparkling clean. Best dishwasher weve ever had. Well worth the price.
    Originally posted on

    Yes, I recommend this product

    • Features:
    • Quality:
    • Value:

    Awesome Range

    Submitted by SFNM - 8/29/2019

    Makes incredible breads and cakes. Never had a better oven for pies
    Originally posted on

    Yes, I recommend this product

    Gift box Incentivized Review

    • Features:
    • Quality:
    • Value:

    Super Quiet - Flexible Interior with Light

    Submitted by One Cottage Boy - 7/2/2019

    I bought this to replace a 20-year old dishwasher. I am impressed with the almost total silence of the machine and the great flexibility of the 3 racks. The slightly-pebbled stainless steel exterior does not show fingerprints I thought this dishwasher was well worth the price.
    Originally posted on

    Yes, I recommend this product

    Gift box Incentivized Review

    • Features:
    • Quality:
    • Value:

    Great dishwasher

    Submitted by Geo58 - 5/27/2019

    This one of the best dishwashers we have ever owned. Dishes come out clean and dry. Love the variety of features. Lots of space. Cant be more happy
    Originally posted on

    Yes, I recommend this product

    Gift box Incentivized Review

    • Features:
    • Quality:
    • Value:

    Best dishwasher

    Submitted by Cody Lane - 3/10/2019

    We bought this dishwasher a couple of months ago. We had a challenge with some concealed damage during shipment which required a new unit. Once we got that straightened out then we were good to go. It did take some time to install and we would recommend that you sound proof it with the parts provided. Great performing dishwasher Awesome third rack. For top performance do the following: turn on your sink water and get it hot before running the dishwasher. Use the liquid rinse aid - this significantly helps with drying all plastic items.
    Originally posted on

    Yes, I recommend this product

    Gift box Incentivized Review

    • Features:
    • Quality:
    • Value:

    Best Dishwashwer Ever

    Submitted by Denise1028 - 2/27/2019

    Easy to load with plenty of room. Love the hidden display. I have to say the best feature is how quiet this machine is Outstanding... well worth the money.
    Originally posted on

    Yes, I recommend this product

    • Features:
    • Quality:
    • Value:

    Moldy after one wash

    Submitted by Foad - 2/20/2019

    I bought this a month ago and now I am staying in a hotel and have to buy all new dishes
    Originally posted on

    No, I do not recommend this product

    Gift box Incentivized Review

    • Quality: