LG 24 Built-in Dishwasher Stainless Steel Model LDF5545ST Manual

The LG LDF5545ST is a 24-inch built-in stainless steel dishwasher featuring advanced cleaning technology, multiple wash cycles, energy-efficient operation, quiet performance, and smart connectivity options. This dishwasher offers customizable rack configurations, soil sensors, steam cleaning options, and durable stainless steel construction. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Utilities 7. Operating Cycles 8. Maintenance Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Stainless steel tub and door, control panel, upper and lower racks, silverware basket, filter system, water inlet valve, drain pump.

FeatureDescription
Stainless Steel InteriorDurable and resistant to stains and odors
QuadWash™ SystemFour spray arms for comprehensive cleaning coverage
LoDecibel™ OperationQuiet performance at 44 dBA
SmartThinQ TechnologyWi-Fi connectivity for remote control and monitoring
Adjustable RacksCustomizable upper rack height and fold-down tines
Soil SensorAutomatically adjusts cycle time based on soil level
Steam CleaningSanitizes and removes tough stains
Energy Star CertifiedEnergy and water efficient operation
Delay StartProgram start times up to 19 hours in advance
Child LockPrevents accidental cycle changes

Installation

Unpack and inspect contents. Ensure proper cabinet opening dimensions.

  1. Prepare cabinet opening: Remove old dishwasher and clean area.
  2. Connect water supply: Attach hot water line to inlet valve (120°F recommended).
  3. Connect drain hose: Route to disposal or sink drain with high loop.
  4. Connect electrical: Hardwire to dedicated 120V, 15-amp circuit.
  5. Level dishwasher: Adjust leveling legs for proper door seal.
  6. Secure to counter: Attach mounting brackets to underside of countertop.

WARNING! Dishwasher is heavy; use two people for installation. Ensure all connections are secure and leak-free.

First-Time Setup

Complete installation and prepare for first use.

  1. Remove shipping materials: Take out all tape and protective coverings.
  2. Run initial rinse cycle: Add 2 cups white vinegar to clean interior.
  3. Load test dishes: Arrange properly for optimal cleaning performance.
  4. Select cycle: Choose Normal cycle for regular cleaning.
  5. Add detergent: Use recommended dishwasher detergent only.
  6. Start cycle: Close door and press Start button.

CAUTION! Do not use regular dish soap. Use only dishwasher-specific detergents.

Specifications

Controls and Settings

Access control panel on top of door. Main controls: Power, Cycle Selection, Options, Start/Reset.

Cycle Options: Heavy, Normal, Light, Rinse Only, Speed Wash, Sanitize, Crystal/Glass

Additional Features: Delay Start, High Temp Wash, Sani Rinse, Steam, Child Lock, Soil Sensor

SmartThinQ Settings: Remote start/stop, cycle monitoring, diagnostic alerts, software updates

Connecting Utilities

Required connections: Hot water supply, drain line, electrical power.

  1. Hot water supply: ½" connection, 120°F temperature recommended.
  2. Drain connection: High loop installation required to prevent backflow.
  3. Electrical: Hardwired connection to dedicated circuit breaker.
  4. SmartThinQ: Connect to home Wi-Fi network for smart features.

Tip: Ensure water shut-off valve is easily accessible for maintenance.

Operating Cycles

Select appropriate cycle based on load type and soil level.

  1. Heavy: For pots, pans, and heavily soiled items (150 minutes)
  2. Normal: Everyday dishes with average soil (120 minutes)
  3. Light: Lightly soiled dishes and quick clean (90 minutes)
  4. Speed Wash: Fast cleaning for lightly soiled loads (60 minutes)
  5. Sanitize: High-temperature wash with steam (165 minutes)
  6. Crystal/Glass: Gentle cycle for delicate items (95 minutes)
  7. Rinse Only: Quick rinse to prevent drying on dishes (15 minutes)

WARNING! Load sharp knives with handles up. Do not overload racks.

Maintenance Features

Self-cleaning filter: Captures food particles, requires monthly cleaning. Soil Sensor: Automatically adjusts water usage and cycle time. Steam Function: Helps remove baked-on food and sanitize dishes.

Care & Cleaning

Monthly maintenance: Clean filter assembly, wipe door seals, check spray arms for clogs.

Exterior: Use mild soap and water for stainless steel. Wipe with grain.

Interior: Run monthly cleaning cycle with dishwasher cleaner.

CAUTION! Do not use abrasive cleaners or steel wool on stainless steel surfaces.

Regulatory Information

UL Listed: Meets safety standards for household appliances. Energy Star Certified: Exceeds federal energy efficiency standards. FCC Part 15: Complies with radio frequency emission limits. California Proposition 65 Warning: Contains chemicals known to cause cancer and reproductive harm. For support, visit www.lg.com or contact 1-800-243-0000.

Troubleshooting

SymptomPossible CauseCorrective Action
Dishwasher won't startDoor not closed/power issueEnsure door latched; check circuit breaker; verify power connection.
Poor cleaning resultsSpray arm obstructionCheck for blocked spray arms; clean filter; use proper detergent amount.
Water not drainingDrain hose cloggedCheck drain hose for kinks; clean drain filter; ensure proper installation.
Leaking waterDoor seal/door alignmentCheck door gasket; ensure proper leveling; inspect hose connections.
Unusual noiseForeign objects/spray armRemove objects from tub; check spray arm rotation; ensure proper loading.
Error codes displayedSystem malfunctionNote error code; consult manual; contact LG support if persistent.

Reset: Unplug for 1 minute or turn off circuit breaker to reset control board.

Service: 1-800-243-0000; www.lg.com

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