LG Dishwasher LDFN4542S

User Manual & Installation Guide

Built-in Dishwasher

Installation Guide

Tools Needed:

  • Adjustable wrench
  • Level
  • Screwdrivers (flat and Phillips)
  • Pliers
  • Tape measure
  • Drill with bits

Step-by-Step Installation

  1. Prepare Installation Space: Ensure cabinet opening meets required dimensions and has proper electrical and plumbing access.
  2. Remove Shipping Materials: Remove all protective films, tapes, and shipping bolts from the dishwasher.
  3. Connect Water Supply: Connect hot water supply line to the water inlet valve using new hoses and proper fittings.
  4. Connect Drain Hose: Route the drain hose to the sink drain or garbage disposal with a high loop to prevent backflow.
  5. Electrical Connection: Connect to a dedicated 120V, 60Hz, 15A grounded outlet. Follow local electrical codes.
  6. Position and Secure: Slide dishwasher into cabinet opening, level the unit, and secure to adjacent cabinets.
  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 ENERGY STAR® Certified
Water Consumption 2.9 Gallons per Cycle
Power Requirements 120V, 60Hz, 15A
Dimensions (HxWxD) 33.75 x 23.56 x 22.44 inches
Weight 85 lbs
Drying System Condensation Drying with LoDecibel™

Warranty Information

  • Full Warranty: 1 year parts and labor
  • Direct Drive 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

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.

QuadWash™ Technology

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

TrueSteam®

Steam technology helps to remove tough, baked-on foods while sanitizing dishes and reducing water spots for hygienically clean results.

LoDecibel™ Operation

Advanced sound insulation and Direct Drive motor technology provide ultra-quiet operation at just 44 dBA.

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 provides flexible loading options for tall items and oddly shaped dishes.

Wash Programs

Heavy Wash

Intensive cleaning for heavily soiled pots, pans, and bakeware

Normal Wash

Standard cleaning for everyday dishes and tableware

Light Wash

Quick cycle for lightly soiled dishes and glassware

Express Wash

30-minute quick cycle for lightly soiled items

Sanitize Cycle

High-temperature wash that eliminates 99.9% 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 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, unbalanced load Check for foreign objects, redistribute dishes evenly
Dishes not drying Rinse aid empty, high humidity, wrong cycle Refill rinse aid, use heated dry option, select proper cycle

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 Built-in Dishwasher

LDFN4542W

White Built-in Dishwasher

LDFC4542S

Counter Depth Dishwasher

Popular Previous Models

LDF5545ST

Stainless Steel Dishwasher

LDF7924ST

24-inch Built-in Dishwasher

LDT7808SS

Top Control Dishwasher

LDP6797ST

Stainless Steel Dishwasher

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