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3.5 | 11 Reviews

Top Control Smart wi-fi Enabled Dishwasher with QuadWash™

LG LDT7797ST

Features

  • QuadWash™ System
  • SmartThinQ® Technology
  • LoDecibel™ Operation (44 dB)
  • LED Tub Light

Quick Specs

  • Type: Dishwasher
  • Style: Built In
  • Width: 23.75"
  • Height: 33.6"
  • Depth: 24.6"
  • Energy Star Rated: Yes
  • Stainless Steel Tub: Yes
  • Fully Integrated Controls: Yes
  • Tall Tub: No
  • Decibel Level: 44.0 dB
  • WiFi Connected: No

See More

 
Four Reasons to Buy an LG Dishwasher


Put Enhanced Cleaning in Motion

Achieve maximum cleaning throughout the entire cycle with LG QuadWash . With four spray arms instead of two, QuadWash also includes Multi-Motion arms that rotate back and forth while spinning. The high pressure jets power-clean dishes from multiple angles.


Think you have to check on the dishes" Think Again

LG smart dishwashers come with SmartThinQ® technology built-in, so you can get smartphone notifications when a cycle is complete. That means less waiting and more time to yourself. You can even check on the cycle status with voice commands using the Google Assistant and Amazon Alexa, so you don't have to lift a finger.


Count On It

When you buy a dishwasher, you want something reliable that you can count on. Because the Direct Drive Motor uses fewer moving parts and operates more efficiently, LG confidently backs the motor with a 10-year warranty.


Easy Loading & Maximum Flexibility

The newly-enhanced EasyRack Plus system provides outstanding flexibility and convenience, adjusting to just about any load of dishes to help ensure optimal cleaning performance. Easy to adjust on-the-fly, this racking system can shift to handle any challenge your dishes can serve up.


Quiet Operation

LG's technological advances, like the Inverter DirectDrive motor and the advanced self-cleaning filtration system, were designed with quiet in mind. At 44dB, this dishwasher is among the quietest dishwashers in its class.

Features

  • QuadWash™ System
  • SmartThinQ® Technology
  • LoDecibel™ Operation (44 dB)
  • LED Tub Light
  • Height Adjustable 3rd Rack
  • Glide Rail (Upper)
POWER RATINGS
ENERGY STAR® Qualified Yes
CEE Tier 1
Energy Use (kWh/Year) 258 kWh
Water Factor (WF) 2.8
CAPACITY
Total Place Settings 15
Upper Rack Dish Height Limit 7.1"
Lower Rack Dish Height Limit 12.5"
SmartThinQ® SMART FEATURES
wi-fi Enabled Yes
Cycle Complete Notification Yes
Voice Activation Yes
Works with Google Assistant and Amazon Alexa
Monitor Cycle Time Yes
SUMMARY
Handle Design Towel Bar Handle
SmartThinQ® Yes
wi-fi Enabled Yes
Control Panel Top Control
QuadWash™ System Yes
3rd Rack Yes
Height Adjustable 3rd Rack Yes
LED Tub Light Yes
FEATURES
LoDecibel™ Quiet Operation 44 dB
3-Stage Filtration System Yes
SenseClean™ Wash System Yes
Vario Wash Yes
No. of Spray Arms 3 (Top, Upper, Lower)
Hybrid Condensing Drying System Yes
Detergent and Rinse-Aid Dispenser Yes
Hidden Water Heater Yes
Safety Float Switch (Leaks) Yes
Soil (Turbidity) Sensor Yes
End of Cycle Indicator Beeper + END Indication on Display
Number of Wash Cycles 9 (Auto, Heavy, Delicate, Normal, Turbo, Download Cycle, Machine Clean, Rinse, Express)
Inverter Direct Drive Motor Yes
Number of Options 8 (Dual Zone, Half Load, Energy Saver, High Temp, Extra Dry, Delay Start, Control Lock, Night Dry)
Tub Insulation (Damping Sheet) Yes
Sound Absorbing Material (felt), Base) Yes
BPA-Free Nylon Coated Racks and Tines Yes
Anti-Bacterial Treatment (Sump, Inner / Outer filter, Drain pump case, Drain hose) Yes
Multi-Level (5) Water Direction Yes (Top Nozzle (Down), Upper Nozzle (Up/Down), Lower Nozzle (Up/Down)
QuadWash™ Yes
STYLE AND DESIGN
Handle Matching Commercial Handle
Tub Material NeveRust™ Stainless Steel
Electronic Controls Hidden SmoothTouch™ Controls with LED Display
Time Remaining Indicator Yes (LED)
SignaLight™ Cycle Indicator Lights 3
Available Colors Matte Black Stainless Steel, Black Stainless Steel, Stainless Steel
Control Panel Location Top
Tub Light Yes
PrintProof™ Finish Yes (only LDT7797BM & LDT7797BD)
LIMITED WARRANTY
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
DIMENSIONS / CLEARANCES / WEIGHT
Product Dimensions (in) (W x H x D) 23 3/4" x 33 5/8" x 24 5/8"
Product Weight (lbs) 86.2 lbs
Depth with Door Closed with Handle (in) 26 7/8"
Depth with Door Open (in) 50 1/2"
Clearances (W x H x D) 24" x 33 1/2" x 24"
Carton Dimensions (in) (W x H x D) 28" x 34 7/10" x 29 3/5"
Shipping Weight with Carton (lbs) 99.5 lbs
UPC CODES
UPC 048231022194
RACKS AND BASKETS
Cutlery Baskets Yes
Stemware Holders Yes
EasyRack™ Plus System Yes
Height-Adjustable 3rd Rack Yes
Height Adjustable Upper Rack Yes (One Touch; 3 Level)
Cup Rack Yes
Fold Down Tines Yes (Full Fold on Upper & Lower)
BPA-Free Nylon Coated Racks and Tines Yes
Rack Handle Yes (Upper/Lower)
Glide Rail Yes (Upper)

Quick Specs


  • Appearance

  • Type: Dishwasher
  • Style: Built In

  • Dimensions

  • Width: 23.75"
  • Height: 33.6"
  • Depth: 24.6"

  • Features

  • Energy Star Rated: Yes
  • Stainless Steel Tub: Yes
  • Fully Integrated Controls: Yes
  • Tall Tub: No
  • Decibel Level: 44.0 dB
  • WiFi Connected: No

LG ThinQ Care Warranty Promo

Offer Expires: 4/13/2023 to 10/31/2023 Must be postmarked by: 1/31/2024

Purchase a qualifying LG product and register it through ThinQ app to receive a free 1 Year Extension on Manufacturer Warranty, valued up to $185. Rebate form must be postmarked by 1/31/2024.

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

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. 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.

3.5 out of 5

45% of reviewers recommend this product.

2 Stars

Dishwasher

Rich Sikora 7/20/2023

Great features and design but very poor quality performance --- Operated periodically from the very beginning of installation. At first we thought it was our lack of operational knowledge. However after warranty we realized it had a reliability issue caused by the PC board. Performance reliability is not on par with my experience with my Braun washer.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
4 Stars

Excellent service

wildfire19p 6/26/2023

While I had to wait to get a service call scheduled because of the way your calendar system works the appointment was way better than I expected and was extremely pleased with the outcome. Your tech was unbelievably courteous knowledgable and really enjoys what he does he was a joy to have in my home.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
3 Stars

Navigating LG SUCKS but the Tech was GREAT

VforVeteran 6/26/2023

Navigating the LG phone system was terrible and it took several days of trying to contact support in order to get my dishwasher repair scheduled. Which was ridiculous. The repair was fantastic reached out when the parts arrived and was a pleasure to work with. Everything up to that point was overly complicated.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
2 Stars

Failed Circuit Board - Rusted Shelves

MTBMIke 6/25/2023

Was nice when new but didnt hold up. Circuit board failed and was fixed under warranty after a few years. Repair tech who came to fix it says LG is unreliable for appliances and they should stick to consumer electronics. Now all the racks are rusted and the top is bent and wont stay shut while you unload the bottom drawer very annoying.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
3 Stars

ok product racks rusted apart

RJBrown122 3/27/2023

still waiting on warranty parts that they dont have. Seems to clean ok.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
3 Stars

Repair was great but costly

David2018 3/13/2023

Im happy with the replacement dishwasher controls panel but it was costly and I dont think the original should have failed with our light use in the less than 4 years wed had it.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
4 Stars

Great Dishwasher

TGM70 12/24/2022

This is dishwasher has so many awesome features. Not to mention the app that keeps you informed about your wash from start to finish.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Excellent cleaning ability

Charlie65 8/22/2022

This dishwasher is amazing. I can have a plate that has had egg yolk on it for several days not do a pre-rinse or pre-wash and it gets it clean. The dishwasher is also very quiet. My only complaint is that the WiFi is very difficult to figure out - I still havent figured it out yet.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

I like it

Salbando 7/1/2022

It has a nice look it gets everything nice and clean. I like the Machine Clean Half Load and Delay Start functions. The filter is very easy to clean. It is nice that the upper regular rack is adjustable to change its height when needed. The upper third rack comes in handy and I use it everyday for larger utensils. I have not need for the cup racks so I removed them.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Attractive unit with great layout and performance

JoeOrlando 5/12/2022

Have had this dishwasher as part of an LG bundle for four and a half years and been very satisfied with appearance features and performance. The layout of the drawer racks is very practical. Cleans everything very well.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
2 Stars

When it works you get clean dishes

SallieRBarney 5/7/2022

I have had this dishwasher for almost 5 years. It has never worked consistently. It gets power but wont start. It gets stuck in the middle of a cycle stops and then stops cleaning. It has water in the basin at the end of a cycle. I love the design the effectiveness when it runs all the way through a cycle but it almost NEVER starts and finishes consistently.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 

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