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 with proper ventilation, near plumbing and electrical connections on a solid, level floor.
- 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 Vent Duct: Connect the dryer vent duct to the exhaust port and route to outside ventilation.
- 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 combo 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 ventilation.
Specifications
| Model Series | WM3997HWA |
| Type | Washer Dryer Combo |
| Color | White / Graphite Steel |
| Wash Capacity | 4.5 cu. ft. |
| Dry Capacity | 4.5 cu. ft. |
| Noise Level (Wash/Dry) | 55 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 30 inches |
| Weight | 185 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
All-in-One Design
Combines washing and drying functions in a single unit, perfect for small spaces and eliminating the need to transfer laundry between machines.
ThinQ Technology
Wi-Fi enabled for remote control via smartphone app, allowing you to monitor cycle status, download additional programs, and receive completion alerts.
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.
Sensor Dry System
Automatically senses moisture levels and adjusts drying time accordingly, preventing over-drying and saving energy.
Steam Technology
Steam technology helps to remove tough stains, reduce allergens, and minimize wrinkles, leaving clothes fresh and hygienically clean.
TurboWash™
This feature saves time without compromising cleaning performance, washing a full load in just 59 minutes using powerful jet sprays and optimized drum rotations.
Wash Programs
Normal Wash
Standard washing cycle for everyday laundry items
Heavy Duty
Intensive cleaning for heavily soiled items
Delicates
Gentle cycle for delicate fabrics and hand-wash items
Quick Wash
Fast cycle for lightly soiled items
Sanitary
High-temperature cycle for sanitizing laundry
Wash+Dry
Complete cycle from washing to drying automatically
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit won't start | Power issue, door not closed properly | Check power supply, ensure door is latched completely |
| Poor drying results | Vent blockage, overloaded, incorrect settings | Clean vent duct, reduce load size, check dryer settings |
| 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 during drying | Foreign objects in drum, unbalanced load | Check for foreign objects, redistribute load evenly |
| Excessive vibration | 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
- tE: Temperature sensor error - Contact service center
Manual Downloads
Current Model Manuals
WM3997HWA
4.5 cu. ft. ThinQ Combo
WM3900HWA
4.5 cu. ft. Steam Combo
WM4000HWA
4.8 cu. ft. ThinQ Combo
WM3488HW
2.3 cu. ft. Compact Combo
Popular Previous Models
WM3998HBA
4.5 cu. ft. Black Combo
WM3670HWA
4.5 cu. ft. White Combo
WM3455HW
2.3 cu. ft. White Combo
WM3170CW
2.3 cu. ft. Compact Combo