LG Direct Drive Washer Dryer WM3431HW Manual

The LG Direct Drive Washer Dryer WM3431HW is a high-efficiency front-loading laundry system with direct drive motor technology, steam cleaning capabilities, multiple wash programs, energy-saving features, and smart diagnosis technology. This 4.3 cu.ft capacity washer dryer combo offers quiet operation, large LED display, child lock, and advanced fabric care options. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: Direct Drive Motor, LED Control Panel, Steam Function, Multiple Wash Programs, Energy Star Certified, Child Lock, Delay Start, Load Sensing Technology.

Feature	Description
Direct Drive Motor	10-year warranty, quiet operation, reduced vibration
Steam Technology	Removes wrinkles and allergens, sanitizes fabrics
LED Display	Shows cycle time, settings, and status
6Motion Technology	Multiple wash motions for different fabric types
TurboWash	Faster washing while maintaining cleaning performance
Smart Diagnosis	Identifies issues through sound analysis
Allergy Care	Eliminates common allergens with steam and hot water
Cold Wash	Energy-saving wash with cold water
Delay Start	Program start time up to 19 hours in advance
Child Lock	Prevents accidental program changes

Installation

Unpack and inspect contents. Place on level, solid floor.

Remove shipping materials: Remove transit bolts and packaging.
Level the unit: Adjust leveling feet to ensure proper balance.
Connect water supply: Attach hot and cold water hoses to corresponding inputs.
Connect drain hose: Ensure proper drainage height and secure position.
Connect electrical: Plug into grounded 120V outlet.

WARNING! Unit is heavy; use two people for installation. Ensure all connections are secure before operation.

First-Time Setup

Power on unit; follow initial setup procedure.

Remove protective films: Peel off all protective coverings from display and surfaces.
Run initial test cycle: Run empty cleaning cycle to remove manufacturing residues.
Set preferences: Configure default settings, language, and sound options.
Load detergent: Fill detergent, softener, and bleach dispensers.
Test functions: Verify all wash programs and features work properly.

CAUTION! Ensure unit is level and all shipping materials are removed before first use.

Specifications

Capacity: 4.3 cubic feet
Motor: Direct Drive with 10-year warranty
Energy Rating: ENERGY STAR certified
Water Connections: Hot and Cold water inputs
Voltage: 120V, 60Hz
Dimensions: 27" W x 39" H x 33" D
Weight: 180 lbs
Wash Programs: 12 including Normal, Heavy Duty, Delicates, Quick Wash
Spin Speeds: Up to 1300 RPM
Noise Level: 52 dBA during wash cycle

Controls and Settings

Access functions via control knob and touch buttons. Main Display: Shows cycle time, temperature, spin speed, and options.

Control Panel: POWER, START/PAUSE, PROGRAM SELECTION KNOB, OPTION BUTTONS, TEMPERATURE, SPIN SPEED, STEAM, DELAY START.

Wash Programs: NORMAL, HEAVY DUTY, DELICATES, QUICK WASH, BEDDING, TOWELS, SANITARY, ALLERGEN, SPORTS WEAR, RINSE+SPIN, DRAIN+SPIN, TUB CLEAN. Options: PRE WASH, EXTRA RINSE, SOAK, CHILD LOCK, DELAY START. Temperature: COLD, TAP COLD, WARM, HOT. Spin Speed: NO SPIN, 400, 600, 800, 1000, 1200, 1300 RPM.

Connecting Utilities

Water Supply: Hot and cold water connections. Drain: Standpipe or laundry sink. Electrical: Standard 120V outlet.

Turn off water supply before connecting hoses.
Use only recommended hoses and fittings.
Ensure drain hose is properly secured at correct height.
Verify electrical outlet is properly grounded.

Tip: Install water leak detector for added protection.

Operating Modes

Supports various fabric types and soil levels.

Select program: Turn knob to desired wash cycle.
Adjust settings: Set temperature, spin speed, and options.
Load laundry: Distribute items evenly in drum.
Add detergent: Use appropriate compartments.
Start cycle: Press START/PAUSE button.
Monitor progress: LED display shows remaining time.
Complete cycle: Unit signals completion with sound.
Remove laundry: Promptly remove items to prevent wrinkles.

WARNING! Do not overload machine. Balance load for optimal performance.

Special Features

Steam Function: Reduces wrinkles and allergens. TurboWash: Cuts wash time by up to 30 minutes. 6Motion Technology: Combines six wash motions for optimal cleaning. Smart Diagnosis: Identifies issues through sound pattern analysis.

Care & Maintenance

Regular cleaning ensures optimal performance and longevity.

Clean door seal: Wipe rubber gasket after each use.
Run tub clean: Monthly cycle with affresh tablet.
Clean dispensers: Remove and rinse detergent compartments.
Wipe exterior: Use damp cloth with mild detergent.
Check hoses: Inspect for leaks or wear annually.

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

Regulatory Information

UL Listed; complies with FCC Part 15. Energy Star certified. Copyright © 2023 LG Electronics; all rights reserved. For support, visit www.lg.com or contact 1-800-243-0000. Model: WM3431HW. Serial number located on unit rating plate.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit won't start	Power/door	Check power connection; ensure door is fully closed.
No water filling	Water supply	Verify water valves are open; check hoses for kinks.
Excessive vibration	Leveling/load	Re-level unit; redistribute unbalanced load.
Water not draining	Drain hose	Check for clogs; ensure proper drain height.
Error codes displayed	Various issues	Refer to error code chart in manual; use Smart Diagnosis.
Poor cleaning results	Detergent/loading	Use HE detergent; reduce load size; check water temperature.

Reset: Unplug for 1 minute then restart. Factory reset available in settings menu.

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