Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
- Vent duct clamps
Step-by-Step Installation
- Choose Installation Location: Select a location near necessary plumbing and electrical connections on a solid, level floor with proper ventilation.
- Remove Shipping Materials: Remove all shipping bolts and packaging materials from the washer dryer combo unit.
- 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.
- Install Venting: Connect the dryer vent duct to the exhaust port and route to outside, ensuring minimal bends.
- Electrical Connection: Connect to a properly grounded 240V, 60Hz, AC only outlet. Do not use an extension cord.
- Level the Unit: Adjust the leveling legs to ensure the washer dryer is level from front to back and side to side.
- Test Run: Run both wash and dry cycles to check for leaks, proper operation, and adequate ventilation.
Specifications
| Model Series | WM4000HWA |
| Type | Front Load Washer Dryer Combo |
| Color | Graphite Steel / White |
| Wash Capacity | 4.5 cu. ft. |
| Dry Capacity | 7.4 cu. ft. |
| Noise Level (Wash/Spin/Dry) | 55 dB / 72 dB / 65 dB |
| Control Type | Touch Controls with LCD Display |
| Energy Rating | ENERGY STAR® Certified |
| Water Consumption | 8,200 L/year |
| Power Requirements | 240V, 60Hz, 30A |
| Dimensions (HxWxD) | 74 x 27 x 29 inches |
| Weight | 185 lbs |
| Max Spin Speed | 1300 RPM |
| Dryer Type | Vented / Heat Pump |
Warranty Information
- Full Warranty: 2 years parts and labor
- Motor Warranty: 10 years on Direct Drive Motor
- Dryer System Warranty: 5 years on dryer 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
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 for both washing and drying functions.
ThinQ Technology
Wi-Fi enabled for complete remote control via smartphone app, allowing you to monitor cycle status, download additional programs, receive completion alerts, and troubleshoot issues remotely.
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 of heavily soiled items.
Heat Pump Dryer
Energy-efficient heat pump technology recycles hot air to dry clothes gently while using less energy compared to conventional dryers.
Allergiene Cycle
Special cycle that uses steam to remove over 95% of common household allergens like dust mites and pet dander from fabrics.
TurboWash™ & TurboDry™
Time-saving features that wash a full load in just 30 minutes and dry efficiently using optimized drum rotations and temperature control.
Smart Functions
Remote Start
Start wash and dry cycles remotely using the ThinQ app from anywhere
Cycle Monitoring
Monitor remaining time and cycle progress through the smartphone app
Diagnostics
Smart diagnosis feature helps identify and troubleshoot issues
Software Updates
Receive automatic software updates for new features and improvements
Energy Monitoring
Track energy and water usage through the ThinQ application
Voice Control
Compatible with Google Assistant and Amazon Alexa for voice commands
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit won't start | Power issue, door not closed properly, child lock engaged | Check power supply, ensure door is latched completely, disable child lock |
| Clothes not drying properly | Overloading, lint filter clogged, vent obstruction | Reduce load size, clean lint filter, check venting for obstructions |
| Water not draining | Drain hose clogged or kinked, pump filter blocked | Check drain hose for obstructions or kinks, clean pump filter |
| Leaking water | Door not sealed, overfilling, loose connections | Check door seal, ensure proper detergent amount, check connections |
| Unusual noises during drying | Foreign objects in drum, unbalanced load, blower wheel issue | Check for foreign objects, redistribute load evenly, inspect blower wheel |
| Error codes displayed | Various system malfunctions | Refer to error code section below, contact service if persistent |
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
- HE: Heater error - Check dryer heating elements
Manual Downloads
Current Model Manuals
WM4000HWA
4.5 cu.ft. ThinQ Washer Dryer
WM3900HWA
4.2 cu.ft. ThinQ Combo
WM3500CLA
4.5 cu.ft. Smart Combo
WM3400CW
4.5 cu.ft. White Combo
Popular Previous Models
WM3488HW
4.3 cu.ft. Washer Dryer
WM3997HWA
4.3 cu.ft. ThinQ Combo
WM3170CW
4.5 cu.ft. Smart Combo
WM3070CW
4.3 cu.ft. Combo Unit