LG Dishwasher LDFN343LS Manual

The LG Dishwasher LDFN343LS is a modern, energy-efficient dishwasher featuring multiple wash cycles, adjustable racks, a stainless steel interior, sanitizing options, delay start, and smart diagnostic functions. It is designed for standard household use and requires proper installation and maintenance for optimal performance. Below are key sections for safety, features, installation, operation, care, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Loading the Dishwasher 7. Using Wash Cycles 8. Maintenance & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Stainless steel tub, adjustable upper rack, fold-down tines, detergent dispenser, control panel, spray arms, and filter system.

Feature	Description
Wash Cycles	Normal, Heavy, Light, Rinse Only, Sanitize, and Delay Start
Adjustable Upper Rack	Can be raised/lowered to accommodate tall items
Fold-Down Tines	Allow flexible loading for odd-shaped dishes
Sanitize Option	Heats water to eliminate 99.9% of bacteria
Delay Start	Programs dishwasher to start up to 24 hours later
Smart Diagnostic	LED indicators help identify issues
Energy Star Certified	Meets energy efficiency guidelines
Quiet Operation	Sound insulation for reduced noise
Child Lock	Prevents accidental changes to settings
Soil Sensor	Automatically adjusts wash time and water usage

Installation

Unpack and inspect contents. Ensure location meets requirements.

Prepare location: Level floor, near water supply, drain, and electrical outlet.
Connect water supply: Attach hot water line to inlet valve (120°F recommended).
Connect drain hose: Secure to sink drain or garbage disposal with air gap.
Electrical connection: Plug into grounded 120V, 60Hz outlet.
Level dishwasher: Adjust leveling legs so unit is stable and door closes properly.

WARNING! Installation must comply with local codes. If unsure, hire a qualified technician.

First-Time Setup

Before first use, run a rinse cycle to clean interior.

Remove shipping materials: Take out all tape, brackets, and foam.
Load detergent: Fill main dispenser with dishwasher detergent (not regular soap).
Select cycle: Choose Normal cycle and press Start.
Add rinse aid: Fill rinse aid dispenser to improve drying and reduce spots.
Test operation: Run empty cycle to ensure proper water flow and drainage.

CAUTION! Use only detergents labeled for automatic dishwashers.

Specifications

Model: LDFN343LS
Type: Built-in Dishwasher
Capacity: Standard 14-place settings
Power Requirements: 120V AC, 60Hz, 15A
Water Pressure: 20-120 psi
Water Consumption: Approximately 3-5 gallons per cycle
Noise Level: 49 dBA
Dimensions (HxWxD): 34.5" x 23.75" x 24.5"
Warranty: 1-year limited parts and labor

Controls and Settings

Control Panel: POWER, CYCLE SELECTION (Normal, Heavy, Light, Rinse, Sanitize), OPTIONS (Heated Dry, Delay Start, Child Lock), START/PAUSE.

Cycle Guide: Normal (daily use), Heavy (pots/pans), Light (lightly soiled), Rinse (rinse only), Sanitize (high temp). Options: Heated Dry improves drying; Delay Start sets later start time; Child Lock disables controls.

Settings: Adjust water temperature (120°F min), rinse aid level (1-6), sound on/off. Use Smart Diagnostic: LED codes indicate issues (e.g., water supply, drain).

Loading the Dishwasher

Proper loading ensures clean dishes and efficient operation.

Scrape food: Remove large food particles; no need to pre-rinse.
Lower rack: Place pots, pans, plates, and large items facing center.
Upper rack: Load cups, glasses, bowls, and plastic items.
Utensil basket: Place knives (blades down), forks, spoons mixed.
Adjust racks: Raise/lower upper rack for tall items; fold tines as needed.
Check spray arms: Ensure nothing blocks rotation.

Tip: Do not overload; allow water to reach all surfaces.

Using Wash Cycles

Select cycle based on soil level and dish type.

Add detergent: Fill main dispenser; use pre-wash for heavily soiled loads.
Select cycle: Press CYCLE button until desired cycle lights up.
Add options: Press OPTIONS for Heated Dry, Delay Start, etc.
Start: Close door firmly, press START; cycle begins.
Pause: Press START/PAUSE to stop; press again to resume.
End of cycle: Signal sounds; door unlocks automatically after cooling.

WARNING! Do not open door during hot cycles; steam can cause burns.

Maintenance & Cleaning

Regular maintenance ensures longevity and performance.

Clean filter: Remove lower rack, twist and lift filter; rinse under water monthly.
Clean spray arms: Check for clogs; use toothpick to clear holes.
Wipe door gasket: Use damp cloth to remove debris.
Run cleaning cycle: Use dishwasher cleaner or vinegar monthly.
Check rinse aid: Refill when indicator light comes on.

CAUTION! Unplug before cleaning interior. Do not use abrasive cleaners.

Regulatory Information

UL Listed; complies with NSF/ANSI 184 for residential dishwashers. Energy Star certified. Copyright © LG Electronics. For support, visit www.lg.com or contact 1-800-243-0000. Model LDFN343LS manufactured for U.S. market.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Dishwasher won't start	Door not closed/power	Ensure door latched; check circuit breaker; plug in securely.
Poor cleaning	Spray arm blocked/detergent	Clean filter and spray arms; use fresh detergent; load properly.
Water not draining	Drain hose clogged	Check for kinks; clean filter; ensure air gap clear.
Leaking water	Door seal/connections	Inspect door gasket; tighten water connections; level unit.
Unusual noise	Foreign object/spray arm	Check for utensils touching spray arm; remove debris.
Error codes (LED flashes)	Various faults	Refer to manual code list; reset by unplugging for 1 minute.

Reset: Unplug for 1 minute, then restart.

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