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  • QuadWash™ System
  • 3rd Rack
  • ThinQ® Technology
  • LoDecibel™ Operation (46 dBA)
  • EasyRack™ Plus
Top Control Smart wi-fi Enabled Dishwasher with QuadWash™
$ 949.00
*Percent in water spot reduction compared to comparable LG non-steam dishwasher on delicate wash cycle. Results may vary by model. Results based on test with LG LDF7774ST as of Feb. 2018.


    • Series
    • LG
    • Color
    • PrintProof™ Black Stainless Steel
    • Control Panel Location
    • Front Control
    • QuadWash®
    • Yes


    • Total Place Settings
    • 15
    • Upper Rack Dish Height Limit
    • 7.1"
    • Lower Rack Dish Height Limit
    • 12.5"


    • Cutlery Baskets
    • Yes
    • Cup Rack
    • Yes
    • Fold Down Tines
    • Yes (Half Fold on Upper & Half Fold on Lower)
    • BPA-Free Nylon Coated Racks and Tines
    • Yes
    • Rack Handle
    • Yes (Upper)
    • EasyRack™ Plus System
    • Yes
    • Height Adjustable Upper Rack
    • Yes
    • 3rd Rack (Fixed)
    • Yes


    • Control Panel Location
    • Top Control
    • Electronic Controls
    • Fully Integrated Control Panel
    • Tub Material
    • NeveRust™ Stainless Steel
    • Handle
    • Bar Handle
    • All Available Colors
    • Stainless Steel, PrintProof™ Black Stainless Steel, PrintProof™ Stainless Steel
    • Fingerprint Resistant
    • Yes


    • QuadWash®
    • Yes
    • Inverter Direct Drive Motor
    • Yes
    • LoDecibel™ Quiet Operation
    • 46 dBA
    • Number of Wash Cycles
    • 9 (Auto, Heavy, Delicate, Normal, Turbo, Download Cycle, Machine Clean, Rinse, Express)
    • Number of Options
    • 8 (Dual Zone, Half Load, Energy Saver, High Temp, Extra Dry, Delay Start, Control Lock, Night Dry)
    • Number of Spray Arms
    • 3 (Top, Upper, Lower)
    • SenseClean™ Wash System
    • Yes
    • Vario Wash
    • Yes
    • Detergent and Rinse-Aid Dispenser
    • Yes
    • Hybrid Condensing Drying System
    • Yes
    • End of Cycle Indicator
    • Yes (Beeper + END indication on display)
    • Hidden Water Heater
    • Yes
    • Safety Float Switch (Leaks)
    • Yes
    • Soil (Turbidity) Sensor
    • Yes
    • Tub Insulation (Damping Sheet, Sound Absorbing Material (felt), Base)
    • Yes
    • BPA-Free Nylon Coated Racks and Tines
    • Yes
    • Anti-Bacterial Treatment (Drain hose)
    • Yes
    • Balanced Door
    • Yes
    • 3-Stage Filtration System
    • Yes


    • Wi-Fi Enabled
    • Yes
    • Works with
    • Google Assistant and Amazon Alexa
    • SmartDiagnosis™
    • Yes


    • ENERGY STAR® Qualified
    • Yes
    • CEE Tier
    • 1
    • Energy Use (kWh/Year)
    • 258 kWh/Year
    • Water Factor (WF)
    • 2.9


    • Product Dimensions (in) (W x H x D)
    • 23 3/4" x 33 5/8" x 24 5/8"
    • Product Weight (lbs)
    • 79.6 lbs
    • Depth with Door Closed with Handle (in)
    • 26 13/16"
    • Depth with Door Open (in)
    • 49 1/4"
    • Carton Dimensions (in) (W x H x D)
    • 28" x 34 3/4" x 29 5/8"
    • Shipping Weight with Carton (lbs)
    • 91.7 lbs


    • Labor
    • 1 Year
    • Parts
    • 1 Year
    • Control Board and Rack Parts
    • 5 Years
    • Direct Drive Motor
    • 10 Years
    • Stainless Steel Door Liner or Tub
    • Lifetime


    • UPC
    • 048231340786

What people are saying

Rated 5 out of 5 by from LG -Excellent Dishwaher I purchased this LG Dishwasher to complete my kitchen remodel to all stainless appliances and all LG Thinq appliances. I did quite a bit of research and having now had it 3 weeks I must say it has exceeded every expectation. It is so quiet I can stand next to it and not know its in cycle. The smart functions and integration with all my other LG home appliances and electronics is excellent but above all the dishes, from pots and pans to fine china come out impeccably clean. I highly recommend.
Date published: 2022-06-23
Rated 5 out of 5 by from Great cleaning machine Very happy with this dishwasher. It’s roomy and is a powerful cleaner
Date published: 2022-06-16
Rated 5 out of 5 by from As Advertised! This dishwasher is the most quietest dishwasher I have owned. It will clean dishes with all kinds of food on it with the need for prerinseing.
Date published: 2022-05-31
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Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

Why is the bottom rack so difficult to slide in and out? Is there a trick to it?

Asked by: djb813
The lower rack for the LG Top Control Smart Wi-Fi Enabled Dishwasher with QuadWash™, Model # LDT5678BD should not be difficult to slide in or out. Has this always been an issue with the lower rack since purchasing the dishwasher? Check to make sure that the rack is aligned correctly within its tracks or that there is nothing stuck on the tracks preventing it from gliding in and out easily...^Ivan
Answered by: Ivanf
Date published: 2021-10-12

How much water is used with each wash cycle?  Water seems to pour out of my overflow. About 5 cups at a time. About 7 times during turbo wash. Seems like a lot of water  

Asked by: 3 little monsters
Please refer to the 'Cycle/Option Guide' chart on page 31 of your owner's manual for the LG Top Control Smart Wi-Fi Enabled Dishwasher with QuadWash™, Model # LDT5678SS. The 'Water Usage' shows how much water each cycle for the dishwasher uses...^Ivan
Answered by: Ivanf
Date published: 2021-08-16

How long are each of the wash cycles?

Asked by: Ckjohnson
The actual running time and cycle time displayed on the LG Top Control Smart wi-fi Enabled Dishwasher with QuadWash™, Model # LDT5678SS may change depending on options chosen, soil level, water temperature, and hardness of the water. Therefore, display time and actual running time can be different. The display time shown for the Auto cycle is 89 - 192 minutes, it is 140 - 214 minutes for the Heavy cycle, 95 - 153 for the Delicate cycle, 98 - 100 minutes for the Normal cycle, 59 - 121minutes for the Turbo cycle, 33- 103 minutes for the Express cycle, 12minuts for the Rinse cycle, and 82 minutes for the Machine Clean cycle...^IFV
Answered by: Ivanf
Date published: 2021-04-29

is the middle shelf adjustable

Asked by: maha11
The upper rack in the LG Top Control Smart wi-fi Enabled Dishwasher with QuadWash™, Model # LDT5678SS is height adjustable...^IFV
Answered by: Ivanf
Date published: 2021-02-02

Does LG make a dishwasher with a heating element anymore? This new steam dry kind dont work for me. I don't like that the inside of the dishwasher is always wet and not all my dishes are dry. I just want one that has good ole heat to dry my dishes.

Asked by: debbie13
Hello Debbie13. Are you interested in a Top Control Dishwasher like the LG Top Control Smart Wi-Fi Enabled Dishwasher with QuadWash™, Model # LDT5678BD, or a Front Control Dishwasher? Most, if not all of our current dishwashers feature a Hybrid Condensing Drying System which does not rely on a heating element to dry the dishes. You can visit our site at where the dishwashers are categorized as Front Control Dishwashers or Top Control Dishwashers. Each Dishwasher has its own product page and the type of heating system is listed under features....^IFV
Answered by: Ivanf
Date published: 2021-08-28

Apparently my dishwasher seems to be having the same problems as others. The dishwasher does not turn on, my understanding the panel needs to be replaced. I purchased the dishwasher almost 3 years ago, can LG fix the problem without extra cost?

Asked by: Anonymous
We regret to read that your LG Top Control Smart Wi-Fi Enabled Dishwasher with QuadWash™, Model # LDT5678SS is not turning on and we sincerely apologize for any inconvenience. If you have checked to make sure that the circuit breaker for the dishwasher is not tripped, then the dishwasher will need to be inspected by a qualified service technician to determine what the issue is. The dishwasher has a Limited Manufacturer's Warranty of 1 Year for Parts and Labor, 5 Years for the Control Board and Rack Parts, 10 Years for the Direct Drive Motor and a Lifetime Warranty for the Stainless Steel Door Liner or Tub from date of purchase. If the part that needs to be repaired falls within the Limited Manufacturer's Warranty as described above, it will be repaired within that warranty without you incurring any cost...^IFV
Answered by: Ivanf
Date published: 2021-04-29

I noticed it says parts have 1 year warranty. Bought our dishwasher in March 2019 and just noticed the top rack has rust. Not happy about rust one something that is supposed to get wet. And after only 1 year? That’s not good quality. 

Asked by: ChrissyW
That's terrible! I'm looking at this dishwasher, and I now have 2nd thoughts. There is something called liquid electrical tape, that you could use to seal it the rust spots off. Its only available in red and black, though. I hope they replaced the tray for you.
Answered by: PeterTheGreat
Date published: 2020-06-13

Could you please tell me the difference between stainless and stainless steel? They look identical. We have a stainless steel LG fridge, and ordered a stainless steel LG range (LSD4913ST) so want to match. The SS DW is on back order though.

Asked by: LizFe
The end of the LG model # tells you: SS if it's fingerprint resistant stainless (looks slightly darker) or ST which is plain stainless steel.
Answered by: bebo1
Date published: 2020-11-26
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