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 WashTower unit.
- Connect Water Supply: Connect hot and cold water supply lines to the water inlet valves. Use only new hoses.
- Connect Drain System: Route the drain hose into a standpipe or laundry tub with a high loop to prevent backflow.
- Electrical Connection: Connect to a properly grounded 240V outlet for dryer and 120V for washer. Do not use extension cords.
- Level the WashTower: Adjust the leveling legs to ensure the unit is level from front to back and side to side.
- Test Run: Run both washer and dryer through complete cycles to check for leaks and proper operation.
Specifications
| Model Series | WM3900HWA |
| Type | Washer & Dryer Tower Unit |
| Color | Black Stainless Steel |
| Washer Capacity | 4.5 cu. ft. |
| Dryer Capacity | 7.4 cu. ft. |
| Noise Level | Washer: 52 dB / Dryer: 62 dB |
| Control Type | Touch Controls with LCD Display |
| Energy Rating | ENERGY STAR® Certified |
| Water Consumption | Washer: 13 gallons per load |
| Power Requirements | 240V for Dryer, 120V for Washer |
| Dimensions (HxWxD) | 73 x 27 x 32 inches |
| Weight | 215 lbs |
Warranty Information
- Full Warranty: 1 year parts and labor
- 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
ThinQ Technology
Smart connectivity allows remote control and monitoring via smartphone app, with cycle status updates and custom program downloads.
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.
TurboSteam™ Technology
Steam technology in both washer and dryer helps remove tough stains, reduce allergens, and refresh clothes without washing.
Center Control™ Panel
Easy-to-use centralized control panel positioned at eye level for convenient operation of both washer and dryer functions.
Allergiene™ Cycle
Special cycle that uses steam to remove over 95% of common household allergens like dust mites and pet dander.
Space Saving Design
Stacked washer and dryer unit saves valuable floor space while providing full-sized laundry capacity.
Smart Functions
Remote Start
Start cycles remotely using the ThinQ app from anywhere
Cycle Monitoring
Monitor cycle progress and receive completion alerts
Diagnostics
Smart diagnostics can identify issues and suggest solutions
Software Updates
Receive automatic software updates with new features
Energy Monitoring
Track energy and water usage through the app
Custom Programs
Download and create custom wash and dry cycles
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit won't start | Power issue, door not closed properly | Check power supply, ensure both doors are latched completely |
| Poor cleaning results | Overloading, wrong detergent, incorrect program | Reduce load size, use HE detergent, select appropriate program |
| Clothes not drying | Lint filter clogged, overloading, incorrect settings | Clean lint filter, reduce load size, check dryer settings |
| 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 |
| Wi-Fi connection issues | Network problems, incorrect setup | Check network connection, re-run ThinQ setup process |
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
- tE: Temperature sensor error - Contact service center
Manual Downloads
Current Model Manuals
WM3900HWA
ThinQ WashTower Black Stainless
WM4000HWA
ThinQ WashTower White
WM3900HBA
ThinQ WashTower Graphite Steel
WM4000HBA
ThinQ WashTower Champagne
Popular Previous Models
WM3488HW
WashTower with Center Control
WM3500CW
Compact WashTower
WM3700HWA
WashTower with Steam
WM3800HWA
WashTower Pro