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LG Signature Series
Fully Integrated Dishwasher

QuadWash™ 3rd Rack SmartThinQ®
product highlights
Electronic Display
Electronic Display An electronic display monitors the progress of your wash cycle so you can know when the cycle is finished.
Child Lock
Child Lock After you set all controls exactly how you want them, employ the child lock to avoid unintentional changes to your settings.
Adjustable Upper Rack
Adjustable Upper Rack The adjustable upper rack is great for making room below for large pots, pans, and cooking sheets, or also for long stemware in the upper rack.
Fold-Down Tines
Fold-Down Tines These tines can fold down to more easily place large pots and pans in the rack. Set the tines back up for small plates and glasses.
Cutlery Tray
Cutlery Tray This handy third rack is great for holding silverware and bigger utensils like knives, ladles and spatulas.
Stainless Steel Interior
Stainless Steel Interior A stainless steel interior is better than a plastic interior because they can handle higher cleaning temperatures without warping, they contain noise better, and they’re more energy efficient.
Rinse Aid Dispenser
Rinse Aid Dispenser This dishwasher includes a Rinse Aid dispenser to help in reducing water spots on glassware and flatware.
Water Filtration
Water Filtration The water filter keeps food particles and debris from re-entering the wash as water and soap is circulated during the cycle.
Water Heating
Water Heating An internal water heater heats water for hi-temp and sanitize cycles, and your items will dry faster too.
WiFi Connected
WiFi Connected Use your smartphone or tablet to control settings and features, receive alerts, check up on performance, and have instant contact with the appliance.
quick specs
Width: 23 3/4 Inch
Depth: 24 3/5 Inch
Height: 33 3/5 Inch
Control Type: Touch Sensor
Control Style: Fully Integrated
Wash Features
Cycles: 9
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Product Information
Brand: LG
Series: Signature Series
Model: LDT7797
Type: Built In
Subtype: Single Drawer
Accepts Panels: No
Width: 23 3/4 Inch
Depth: 24 3/5 Inch
Height: 33 3/5 Inch
Capacity: 15 Place Settings
Control Type: Touch Sensor
Electronic Display: Yes
Control Style: Fully Integrated
Child Lock: Yes
Adjustable Upper Rack: Yes
Fold-Down Tines: Yes
Third Rack Type: Cutlery Tray
Cutlery Tray: Yes
Tall Tub: No
Stainless Steel Interior: Yes
Number of Spray Arms: 4
Rinse Aid Dispenser: Yes
Water Filtration: Yes
Water Heating: Yes
WiFi Connected: Yes
Wash Features
Cycles: 9
Delay Start: Yes
Dry Type: Vented
Hard Food Disposer: No
High Temperature Wash: Yes
NSF Certified Rinse: No
Quick Wash Setting: Yes
China/Crystal Setting: Yes
Sensor Clean: Yes
Heavy Duty Wash: Yes
Sound Level: 44 dB
Technical Details
Star-K Certified: No
Energy Star Rated: Yes
CEE Rating: Tier I
ADA Compliant: No
Approved for Outdoor Use: No
Amps: 15
Voltage: 120 Volts

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From the Manufacturer

Fully Integrated Dishwasher with QuadWash™
The LG Signature Series marries sleek steel designs with quiet power. The featured QuadWash™ adds a second pair of spray arms for double the strength. The dishwasher includes Multi-Motion technology that gives them the capability of moving back and forth while spinning. Coupled with the high pressure jets this means a strong clean from multiple angles. The Inverter Direct Drive gives the option to two different washing zones with their own power level, and keep the entire washing process ultra quiet.

LG's SmartThinQ® technology adds Wi-fi capability to keep you connected. It allows you to remotely monitor your dishwasher, and even download new wash cycles. If there is an issue, the Smart Diagnosis can assist in immediate troubleshooting if ever needed. The EasyRack™ Plus system adds versatility to every wash. Rack heights can be adjusted to accommodate dishes, pots, and pans of all sizes. The smooth glide of these racks will also make loading and unloading of dishes a breeze.

LG Appliances
LG home appliances are right in step with your busy world by offering the next step in home innovations. With technologically advanced solutions and top-performing products, LG appliances allow your home to work more efficiently so you can spend more time on the things that matter most. LG offers a full range of kitchen appliances, innovative appliance accessories, vacuums, air conditioners and more - all designed to make life good.
  • Specifications
  • Features
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  • Reviews


Total Place Settings:  
Upper Rack Dish Height Limit:  
7 1/10"
Lower Rack Dish Height Limit:  
12 1/2"
Racks and Baskets
Cutlery Baskets:  
Cup Rack:  
Stemware Holders:  
Fold Down Tines:  
Yes (Half Fold on Upper & Lower)
BPA-Free Nyon Coated Racks and Tines:  
Rack Handle:  
Glide Rail:  
EasyRack™ Plus System:  
Height Adjustable Upper Rack:  
Yes(One Touch;3 Level)
Height Adjustable 3rd Rack:  
Style and Design
Control Panel Location:  
Electronic Controls:  
Hidden SmoothTouch™ Controls with LED Display
SignaLight™ Cycle Indicator Lights:  
Time Remaining Indicator:  
Tub Material:  
NeveRust™ Stainless Steel
Tub Light:  
Matching Commercial Handle
Inverter Direct Drive Motor:  
LoDecibel™ Quiet Operation:  
44 dBA
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, Control Lock, Night Dry)
No. of Spray Arms:  
3 (Top, Upper, Lower)
SenseClean™ Wash System:  
Vario Wash:  
Detergent and Rinse-Aid Dispenser:  
Hybrid Condensing Drying System:  
End of Cycle Indicator:  
Beeper + END Indication on Display
Hidden Water Heater:  
Tub Insulation(Damping Sheet):  
BPA-Free Nylon Coated Racks and Tines:  
Multi-Level Water Direction:  
Yes (Top Nozzle (Down), Upper Nozzle (Up/Down), Lower Nozzle (Up/Down)
3-Stage filtration System:  
Electrical Specifications
60 Hz
Energy Use (kWh/Year):  
258 kWh/Year
Energy Star Rated:  
CEE Tier:  
23 3/4
24 3/5
33 3/5


  • Uses Multi-Motion spray arms combined with the Inverter Direct Drive motor power cleans dishes from multiple angles to reach every nook and cranny.
  • Allows you to download new and improved wash cycles and personalize them.
  • If there's ever a problem with your appliance, SmartDiagnosis™ helps troubleshoot a problem quickly right from the app.
EasyRack™ Plus
  • Adjusts to just about any load of dishes to help ensure optimal cleaning performance.
44 dBA LoDecibel™ Quiet Operation
  • Every part of LG's Signature Series Dishwasher was designed with quiet in mind, with this model being even quieter than a typical office.
NeveRust™ Tub
  • A Stainless Steel interior that will never rust for the lifetime of the machine.
9 Wash Cycles
  • Auto, Heavy, Delicate, Normal, Turbo, Download Cycle, Machine Clean, Rinse, Express
8 Wash Options
  • Dual Zone, Half Load, Energy Saver, High Temp, Extra Dry, Delay Start, Control Lock, Night Dry
Additional Features
  • SmoothTouch™ Controls
  • Cutlery Basket
  • 3-Stage Filtration
  • 15 Place Settings

Current Rebates

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Valid 07/13/2017 - 10/25/2017

Available Rebates - May be Combined

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LG Signature Series LDT7797 Reviews