Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
- Gas line connector (for gas models)
Step-by-Step Installation
- Choose Installation Location: Select a location near necessary plumbing, electrical, and ventilation connections on a solid, level floor.
- Remove Shipping Materials: Remove all shipping bolts and packaging materials from the washer dryer 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.
- Ventilation Setup: Install proper exhaust venting for dryer function according to local building codes.
- Electrical Connection: Connect to a properly grounded 240V, 60Hz outlet for dryer function and 120V for washer.
- 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 and proper operation.
Specifications
| Model Series | WM3997HWA |
| Type | Front Load 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 LED Display |
| Energy Rating | ENERGY STAR® Certified |
| Water Consumption | 8,500 L/year |
| Power Requirements | 240V/120V, 60Hz, 30A |
| Dimensions (HxWxD) | 89 x 69 x 74 cm |
| Weight | 85 kg |
| Max Spin Speed | 1300 RPM |
Warranty Information
- Full Warranty: 2 years parts and labor
- Motor Warranty: 10 years on Direct Drive Motor
- Drum Warranty: 5 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
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.
All-in-One Design
Combines washing and drying functions in a single unit, saving space and eliminating the need to transfer laundry between machines.
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.
Sensor Dry System
Advanced moisture sensors detect when clothes are dry and automatically adjust drying time, preventing over-drying and saving energy.
SmartThinQ 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 wash and dry cycles.
Steam Refresh
Steam technology helps to remove wrinkles and odors from clothes, reducing the need for ironing and keeping clothes fresh between wears.
Wash and Dry Programs
Normal Wash & Dry
Standard cycle for everyday cotton and mixed fabrics with automatic drying
Heavy Duty
Intensive cleaning and drying for heavily soiled items and sturdy fabrics
Delicates
Gentle wash and low-heat drying for delicate fabrics and special care items
Quick Wash & Dry
Rapid cycle for lightly soiled items that need to be washed and dried quickly
Sanitary Cycle
High-temperature wash and dry to eliminate bacteria and allergens
Wrinkle Care
Special steam function to reduce wrinkles during both washing and drying
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit won't start | Power issue, door not closed properly, child lock activated | Check power supply, ensure door is latched completely, check child lock settings |
| Poor drying results | Overloading, lint filter clogged, incorrect program selection | Reduce load size, clean lint filter, select appropriate drying program |
| 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 water connections | Check door seal, ensure proper detergent amount, check water connections |
| Unusual noises during drying | Foreign objects in drum, unbalanced load, ventilation issues | Check for foreign objects, redistribute load evenly, check venting |
| 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
- HE: Heater error - Check heating element and thermal fuse
Manual Downloads
Current Model Manuals
WM3997HWA
4.5 cu.ft. Smart Washer Dryer Combo
WM4000HWA
4.5 cu.ft. Steam Combo
WM3900HWA
4.5 cu.ft. ThinQ Combo
WM3488HW
4.3 cu.ft. Washer Dryer Combo
Popular Previous Models
WM3998HBA
4.5 cu.ft. Graphite Combo
WM3170CW
4.5 cu.ft. White Combo
WM3455HW
4.3 cu.ft. Smart Combo
WM2240CW
4.2 cu.ft. Compact Combo