LG Dishwasher LDFN4542S

Owner's Manual & Installation Guide

Built-in Dishwasher

Installation Guide

Tools Needed:

  • Adjustable wrench
  • Screwdrivers (flat and Phillips)
  • Level
  • Tape measure
  • Pipe wrench

Step-by-Step Installation

  1. Choose Installation Location: Select a location near necessary plumbing and electrical connections under kitchen countertop.
  2. Remove Packaging Materials: Remove all shipping materials and protective films from the dishwasher.
  3. Connect Water Supply: Connect hot water supply line to the water inlet valve. Use only new hoses.
  4. Connect Drain Hose: Route the drain hose into sink drain or garbage disposal with proper air gap installation.
  5. Electrical Connection: Connect to a properly grounded 120V, 60Hz, AC only outlet. Dedicated circuit recommended.
  6. Level the Dishwasher: Adjust the leveling legs to ensure the dishwasher is level from front to back and side to side.
  7. Test Run: Run the dishwasher through a complete cycle to check for leaks and proper operation.
Warning: All installations must be performed by a qualified installer to ensure proper operation and maintain warranty coverage.

Specifications

Model Series LDFN4542S
Type Built-in Dishwasher
Color Stainless Steel
Place Settings 14 Place Settings
Noise Level 44 dBA
Control Type Touch Controls with LED Display
Energy Rating A+++ (Most Efficient)
Water Consumption 2.9 gallons per cycle
Power Requirements 120V, 60Hz, 15A
Dimensions (HxWxD) 33.875 x 23.875 x 24.5 inches
Weight 105 lbs
Drying System Condensation Drying with Heat Exchanger

Warranty Information

  • Full Warranty: 1 year 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™ System

Four multi-directional spray arms target every corner of the dishwasher, ensuring thorough cleaning from multiple angles for spotless results.

Direct Drive Motor

LG's innovative Direct Drive motor connects directly to the wash system without belts or pulleys, reducing noise and increasing reliability.

TrueSteam™ Technology

Steam technology helps to remove tough, baked-on food while sanitizing dishes, eliminating 99.99% of bacteria for hygienically clean results.

LoDecibel™ Quiet Operation

Advanced sound insulation and motor technology provide ultra-quiet operation at just 44 dBA, quieter than normal conversation.

SmartThinQ Technology

Wi-Fi enabled for remote control via smartphone app, allowing you to monitor cycle status, download additional programs, and receive completion alerts.

EasyRack™ Plus System

Adjustable upper rack with fold-down tines and versatile rack configurations to accommodate oversized items and various dish sizes.

Wash Programs Explained

Heavy Wash

Intensive cleaning for pots, pans, and heavily soiled dishes

Normal Wash

Standard cleaning for everyday dishes with normal soil

Light Wash

Quick cycle for lightly soiled dishes with energy efficiency

Express Wash

Fast 30-minute cycle for lightly soiled dishes

Sanitary Cycle

High-temperature wash that eliminates 99.99% of 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 loading Reduce load size, use correct detergent, load dishes properly
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, dishes touching Check for foreign objects, rearrange dishes properly
Dishes not drying Rinse aid empty, wrong cycle selected Refill rinse aid, select cycle with heated dry option

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

LDFN4542S

Built-in Dishwasher with QuadWash

LDFN4542B

Black Stainless Dishwasher

LDFN4542W

White Built-in Dishwasher

LDFN4541S

Standard Built-in Dishwasher

Popular Previous Models

LDP6797ST

Stainless Steel Dishwasher

LDF5545ST

Stainless Tall Tub Dishwasher

LDT9966BD

Black Dishwasher with PrintProof

LDF7774BD

Black Stainless Tall Tub

Note: For models not listed here, please visit the LG Support Website for complete documentation.