Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
- Smartphone with ThinQ app
Step-by-Step Installation
- Choose Installation Location: Select a location near plumbing and electrical connections with strong Wi-Fi signal for ThinQ connectivity.
- Remove Shipping Materials: Remove all shipping bolts and packaging materials from the washing machine.
- Connect Water Supply: Connect hot and cold water supply lines to the water inlet valves. Use only new hoses.
- Connect Drain Hose: Route the drain hose into a standpipe or laundry tub with a high loop to prevent backflow.
- Electrical Connection: Connect to a properly grounded 120V, 60Hz, AC only outlet. Do not use an extension cord.
- Wi-Fi Setup: Download LG ThinQ app and follow on-screen instructions to connect washer to your home network.
- Level the Washer: Adjust the leveling legs to ensure the washing machine is level from front to back and side to side.
- Test Run: Run the washing machine through a complete cycle to check for leaks and proper ThinQ connectivity.
Specifications
| Model Series | WM4000HWA |
| Type | Front Load Smart Washer |
| Color | Graphite Steel / White |
| Capacity | 4.5 cu. ft. |
| Noise Level (Wash/Spin) | 52 dB / 68 dB |
| Control Type | Touch Controls with LCD Display |
| Connectivity | Wi-Fi, LG ThinQ Technology |
| Energy Rating | ENERGY STAR® Certified |
| Water Consumption | 13 gallons per cycle |
| Power Requirements | 120V, 60Hz, 15A |
| Dimensions (HxWxD) | 39 x 27 x 30 inches |
| Weight | 185 lbs |
| Max Spin Speed | 1300 RPM |
Warranty Information
- Full Warranty: 1 year parts and labor
- Motor Warranty: 10 years on Direct Drive Motor
- Digital Warranty: 2 years on electronic components
- Additional Coverage: Optional extended warranty available
For warranty service, contact LG Customer Service at 1-800-243-0000 or visit LG.com
Key Features
ThinQ Smart Technology
Connect your washer to Wi-Fi for remote control, cycle monitoring, and smart diagnostics through the LG ThinQ mobile app.
Direct Drive Motor
LG's innovative Direct Drive motor connects directly to the drum without belts or pulleys, reducing noise and vibration while increasing reliability.
TurboWash™ 360°
Advanced cleaning technology that uses powerful jets and optimized drum motions to clean full loads in just 30 minutes.
AI DD™ Technology
Artificial intelligence automatically detects fabric textures and load size to optimize wash motions for the best cleaning performance.
Smart Pairing
Automatically pairs with compatible LG dryers for seamless laundry management and optimized drying cycles.
Voice Control
Compatible with Amazon Alexa and Google Assistant for hands-free control of your laundry cycles.
Smart Features Explained
Remote Start
Start wash cycles remotely from your smartphone using the ThinQ app
Cycle Monitoring
Monitor cycle progress and receive notifications when cycles complete
Smart Diagnosis
Automatically diagnose issues and schedule service through the app
Software Updates
Receive over-the-air updates with new features and improvements
Energy Monitoring
Track energy and water usage to optimize efficiency and save money
Custom Cycles
Create and save custom wash cycles for your specific laundry needs
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Washer won't connect to Wi-Fi | Weak signal, incorrect password, network issues | Check Wi-Fi signal strength, verify password, restart router |
| ThinQ app not working | App outdated, phone compatibility, server issues | Update app, check phone compatibility, contact LG support |
| Remote start not available | Connectivity lost, cycle already started | Check Wi-Fi connection, ensure cycle hasn't started locally |
| Smart features disabled | Software glitch, connectivity issues | Restart washer, check for software updates, reset network settings |
| Voice control not responding | Skill not enabled, device not linked | Enable LG ThinQ skill, link device in voice assistant app |
| Software update failed | Poor connection, insufficient storage | Ensure strong Wi-Fi, clear app cache, retry update |
Smart Error Codes
- SE: Smart Error - Check ThinQ app for detailed diagnostics
- NE: Network Error - Check Wi-Fi connection and router settings
- CE: Communication Error - Restart washer and ThinQ app
- UE: Update Error - Check internet connection and retry update
- VE: Voice Control Error - Re-link voice assistant device
- PE: Pairing Error - Reset pairing with compatible dryer
Manual Downloads
Current ThinQ Models
WM4000HWA
4.5 cu.ft. Smart Washer
WM4200HWA
4.5 cu.ft. ThinQ Washer
WM9000HVA
5.2 cu.ft. Smart Combo
WM3900HWA
4.5 cu.ft. Graphite Steel
Popular Smart Models
WM3700HWA
4.5 cu.ft. Wi-Fi Washer
WM3500HWA
4.5 cu.ft. ThinQ Enabled
WM3400HWA
4.5 cu.ft. Smart Control
WM3200HWA
4.5 cu.ft. Connected