Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
Step-by-Step Installation
- Choose Installation Location: Select a location near necessary plumbing and electrical connections on a solid, level floor.
- 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.
- Level the Washing Machine: Adjust the leveling legs to ensure the washing machine is level from front to back and side to side.
- Smart ThinQ Setup: Download LG ThinQ app and connect washing machine to your Wi-Fi network for smart features.
- Test Run: Run the washing machine through a complete cycle to check for leaks and proper operation.
Specifications
| Model Series | WM3900HWA / WM4000HWA |
| Type | Front Load Washing Machine |
| Color | Black Stainless / White |
| Capacity | 4.5 cu. ft. |
| Noise Level (Wash/Spin) | 52 dB / 68 dB |
| Control Type | Touch Controls with LCD Display |
| Smart Technology | LG ThinQ with Wi-Fi Connectivity |
| Energy Rating | ENERGY STAR® Most Efficient |
| Water Consumption | 3,870 gallons/year |
| Power Requirements | 120V, 60Hz, 15A |
| Dimensions (HxWxD) | 39 x 27 x 30 inches |
| Weight | 192 lbs |
| Max Spin Speed | 1300 RPM |
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
LG ThinQ Technology
Smart connectivity allows remote control, cycle monitoring, and custom settings via smartphone app. Receive notifications and download new wash cycles.
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 and efficiency.
TurboWash™ 360°
Advanced cleaning technology that saves time without compromising performance, washing a full load in just 30 minutes using powerful jet sprays.
Steam Technology
Steam technology helps to remove tough stains, reduce allergens, and minimize wrinkles, leaving clothes fresh and hygienically clean.
6 Motion DD Technology
Six different wash motions can be combined to provide the optimal wash for any fabric type, from gentle handling of delicates to powerful cleaning.
Voice Control
Compatible with Amazon Alexa and Google Assistant for hands-free control and status updates using voice commands.
LG ThinQ App Features
Remote Start/Stop
Start, stop, or pause wash cycles remotely from your smartphone
Cycle Monitoring
Monitor cycle progress and receive completion alerts
Diagnostics
Run diagnostic tests and troubleshoot issues remotely
Custom Cycles
Download and create custom wash cycles for specific needs
Usage Reports
Track energy and water consumption over time
Maintenance Alerts
Receive reminders for filter cleaning and maintenance
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Washing machine won't start | Power issue, door not closed properly, Wi-Fi connection | Check power supply, ensure door is latched, verify ThinQ connection |
| 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 drum, unbalanced load | Check for foreign objects, redistribute load evenly |
| ThinQ connection issues | Wi-Fi signal weak, app not updated | Check Wi-Fi signal strength, update ThinQ app, restart machine |
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
- UE: Unbalanced load - Redistribute clothes and restart
- tE: ThinQ connection error - Check Wi-Fi and restart connection
Manual Downloads
Current ThinQ Model Manuals
WM3900HWA
4.5 cu.ft. Smart ThinQ Washer
WM4000HWA
4.5 cu.ft. ThinQ with Steam
WM4200HWA
4.8 cu.ft. Smart ThinQ Washer
WM9000HVA
5.2 cu.ft. Premium ThinQ
Popular ThinQ Series Models
WM3400CW
4.5 cu.ft. White ThinQ
WM3700HWA
4.5 cu.ft. Black ThinQ
WM3900HBA
4.5 cu.ft. Black Stainless
WM4000HBA
4.5 cu.ft. Black Stainless Steam