Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pipe wrench
- Tape measure
- Drill with bits
Step-by-Step Installation
- Choose Installation Location: Select a location near kitchen plumbing and electrical connections on a solid, level floor under countertop.
- Remove Shipping Materials: Remove all shipping bolts, brackets and packaging materials from the dishwasher.
- Connect Water Supply: Connect hot water supply line to the water inlet valve. Use only new braided stainless steel hoses.
- Connect Drain Hose: Route the drain hose into sink drain or garbage disposal with a high loop to prevent backflow.
- Electrical Connection: Connect to a properly grounded 120V, 15A dedicated circuit. Follow local electrical codes.
- Level the Dishwasher: Adjust the leveling legs to ensure the dishwasher is level from front to back and side to side.
- Secure to Countertop: Use mounting brackets to secure the dishwasher to the underside of the countertop.
- Test Run: Run the dishwasher through a complete cycle to check for leaks and proper operation.
Specifications
| Model Series | LDSD789HT |
| Type | Built-in Dishwasher |
| Color | Stainless Steel / Black Stainless |
| Place Settings | 16 Place Settings |
| Noise Level | 44 dBA |
| Control Type | Touch Controls with LED Display |
| Energy Rating | ENERGY STAR® Certified |
| Water Consumption | 2.9 gallons per cycle |
| Power Requirements | 120V, 60Hz, 15A |
| Dimensions (HxWxD) | 34.5 x 23.75 x 24 inches |
| Weight | 105 lbs |
| Drying System | Heat Dry with Fan Assist |
Warranty Information
- Full Warranty: 2 years parts and labor
- Motor Warranty: 10 years on Direct Drive Motor
- Additional Coverage: Optional extended warranty available
For warranty service, contact LG Customer Service at 1-800-243-0000 or visit LG.com
Key Features
QuadWash™ Technology
Four multi-directional spray arms target every corner of the dishwasher, ensuring complete coverage and superior cleaning performance on all rack levels.
Direct Drive Motor
LG's innovative Direct Drive motor connects directly to the wash system without belts or pulleys, reducing noise and vibration while increasing reliability and efficiency.
TrueSteam® Technology
Steam technology helps to remove tough, baked-on foods, reduce allergens, and sanitize dishes, leaving them hygienically clean and virtually spot-free.
EasyRack™ Plus System
Fully adjustable upper rack with fold-down tines and glide rails provides maximum flexibility for loading large or odd-shaped items.
SmartThinQ Technology
Wi-Fi enabled for remote control via smartphone app, allowing you to monitor cycle status, download additional programs, and receive completion alerts.
LoDecibel™ Quiet Operation
Advanced sound insulation and Direct Drive motor technology combine to deliver ultra-quiet operation at only 44 dBA.
Wash Cycle Options
Heavy Wash
Intensive cleaning for heavily soiled pots, pans and bakeware
Normal Wash
Standard cleaning for everyday dishes and tableware
Light Wash
Quick cleaning for lightly soiled items and glassware
Express Wash
Fast 30-minute cycle for lightly soiled loads
Sanitary Cycle
High-temperature wash and rinse to eliminate bacteria
Rinse Only
Quick rinse to prevent food from drying on dishes
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Dishwasher won't start | Power issue, door not closed properly | Check power supply, ensure door is latched completely |
| Poor cleaning results | Overloading, wrong detergent, incorrect program | Reduce load size, use correct detergent, select appropriate program |
| Water not draining | Drain hose clogged or kinked | Check drain hose for obstructions or kinks, clean filter |
| Leaking water | Door not sealed, overfilling, loose connections | Check door seal, ensure proper detergent amount, check connections |
| Unusual noises | Foreign objects in spray arms, improper loading | Check for foreign objects, reload dishes properly |
| Dishes not drying | Heating element failure, rinse aid empty | Check heating element, refill rinse aid dispenser |
Error Codes
- IE: Water supply issue - Check water supply and inlet valve
- OE: Drain issue - Check drain hose and pump
- FE: Flooding detected - Check for leaks and water supply
- LE: Motor issue - Contact service center
- dE: Door not closed properly - Ensure door is fully closed
- HE: Heating element issue - Contact service center
Manual Downloads
Current Model Manuals
LDSD789HT
Studio Series Dishwasher
LDSD785HT
Studio Series with Steam
LDSD782HT
Studio Series ThinQ
LDSD789BS
Studio Series Black Stainless
Popular Previous Models
LDFN4542T
Standard Series Dishwasher
LDP6797ST
Premium Series Dishwasher
LDT5678ST
Top Control Series
LDF7551ST
Front Control Series