Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
- Stud finder
Step-by-Step Installation
- Choose Installation Location: Select a location near necessary plumbing and electrical connections on a solid, level floor with adequate space for both units.
- Remove Shipping Materials: Remove all shipping bolts and packaging materials from both washer and dryer units.
- Install Stacking Kit: Assemble and install the stacking kit according to manufacturer instructions to securely connect washer and dryer.
- Connect Water Supply: Connect hot and cold water supply lines to the washer 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 washer to grounded 120V outlet and dryer to appropriate 240V outlet. Do not use extension cords.
- Vent Installation: Install proper venting for dryer according to local building codes and manufacturer specifications.
- Level the Tower Unit: Adjust the leveling legs to ensure the entire tower is level and stable.
- Test Run: Run both units through complete cycles to check for leaks and proper operation.
Specifications
| Model Series | WM4000HWA + DLEX4000W |
| Type | Washer and Dryer Tower Stack |
| Color | White / Graphite Steel |
| Washer Capacity | 4.5 cu. ft. |
| Dryer Capacity | 7.4 cu. ft. |
| Noise Level (Washer) | 52 dB / 68 dB |
| Control Type | Touch Controls with LCD Display |
| Energy Rating | ENERGY STAR® Most Efficient |
| Washer Water Consumption | 8,000 gallons/year |
| Power Requirements | Washer: 120V, Dryer: 240V |
| Dimensions (HxWxD) | 125 x 27 x 31 inches |
| Total Weight | 215 lbs |
| Max Spin Speed | 1300 RPM |
Warranty Information
- Full Warranty: 1 year parts and labor
- Motor Warranty: 10 years on Direct Drive Motor
- Drum Warranty: 10 years on stainless steel drum
- 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
Wi-Fi enabled for remote control via smartphone app, allowing you to monitor cycle status, download additional programs, and receive completion alerts for both washer and dryer.
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.
TurboSteam™ Technology
Steam technology in both units helps to remove tough stains, reduce allergens, minimize wrinkles, and refresh clothes without washing.
Sensor Dry System
Advanced moisture sensors automatically detect when clothes are dry and shut off, preventing over-drying and saving energy.
Space Saving Design
Tower configuration saves valuable floor space while providing full-size washer and dryer capacity in a compact footprint.
Dual LED Display
Separate displays for washer and dryer provide clear status information and easy control of both units from a single interface.
SmartThinQ App Features
Remote Start/Stop
Start or stop wash and dry cycles remotely from your smartphone
Cycle Monitoring
Monitor remaining time and cycle progress for both units
Diagnostics
Receive troubleshooting assistance and error code explanations
Custom Programs
Download and create custom wash and dry cycles
Usage Reports
Track energy and water usage over time
Maintenance Alerts
Receive notifications for filter cleaning and maintenance
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Units won't start | Power issue, door not closed properly, stacking kit loose | Check power supply, ensure doors are latched, verify stacking kit security |
| Poor cleaning results | Overloading, wrong detergent, incorrect program | Reduce load size, use correct detergent, select appropriate program |
| Clothes not drying properly | Lint filter clogged, vent blocked, overloading | Clean lint filter, check venting, reduce load size |
| Vibration or noise | Unbalanced load, uneven floor, stacking kit issues | Redistribute load, level the unit, check stacking connections |
| Wi-Fi connection issues | Network problems, incorrect setup, signal strength | Check network connection, re-run setup, improve signal strength |
| Error codes displayed | Various system issues detected | Refer to error code section below for specific solutions |
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: Temperature sensor error - Contact service center
- PF: Power failure - Unit will resume when power returns
Manual Downloads
Current Model Manuals
WM4000HWA + DLEX4000W
ThinQ Washer & Dryer Tower
WM3900HWA + DLEX3900W
ThinQ Steam Tower
WM4200HBA + DLEX4200B
ThinQ Black Steel Tower
WM3500HWA + DLEX3500W
ThinQ Compact Tower
Popular Previous Models
WM3470HVA + DLEX3470V
ThinQ Graphite Tower
WM3170HWA + DLEX3170W
ThinQ White Tower
WM2688HNM + DLE2688W
Smart ThinQ Tower
WM2240CW + DLE2240W
Basic ThinQ Tower