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.
- Test Run: Run the washing machine through a complete cycle to check for leaks and proper operation.
Specifications
| Model Series | WM3900HWA |
| Type | Front Load Washing Machine |
| Color | Graphite Steel / White |
| Capacity | 4.5 cu. ft. |
| Noise Level (Wash/Spin) | 52 dB / 68 dB |
| Control Type | Touch Controls with LED Display |
| Energy Rating | ENERGY STAR® Most Efficient |
| Water Consumption | 13 gallons per cycle |
| 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
- 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 customization and diagnostic capabilities.
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°
Powerful multidirectional water jets thoroughly clean clothes in less time, saving up to 30 minutes per load.
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 to powerful cleaning.
Smart Diagnosis
Quickly diagnose issues with your washer using the ThinQ app, reducing service time and costs.
Wash Programs
Normal
Standard wash for everyday cotton and mixed fabrics
Heavy Duty
Intensive cleaning for heavily soiled items and sturdy fabrics
Delicates
Gentle cycle for delicate fabrics and hand-wash items
Quick Wash
Fast cycle for lightly soiled items needing quick refresh
Bedding
Special cycle for large items like comforters and blankets
Allergiene
Cycle designed to remove common allergens from fabrics
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Washing machine won't start | Power issue, door not closed properly | Check power supply, ensure door is latched completely |
| 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 |
| Vibration during spin | Unbalanced load, uneven floor, shipping bolts not removed | Redistribute load, level the machine, ensure shipping bolts removed |
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
Manual Downloads
Current Model Manuals
WM3900HWA
4.5 cu.ft. Smart ThinQ Washer
WM4000HBA
4.5 cu.ft. ThinQ Steam Washer
WM3400CW
4.5 cu.ft. ThinQ Washer
WM3700HVA
4.5 cu.ft. Graphite Steel Washer
Popular Previous Models
WM3470HVA
4.5 cu.ft. ThinQ Washer
WM3570HVA
4.8 cu.ft. Smart ThinQ Washer
WM3670HVA
4.5 cu.ft. ThinQ Steam Washer
WM3770HVA
5.0 cu.ft. ThinQ Washer