Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
- Duct tape for venting
Step-by-Step Installation
- Choose Installation Location: Select a location near necessary plumbing, electrical connections, and venting 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.
- Install Venting: Connect the dryer vent hose to the exhaust port and route to exterior vent.
- 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 and proper operation.
Specifications
| Model Series | WM3997HWA |
| Type | Front Load Washer Dryer Combo |
| Color | Graphite Steel / White |
| Wash Capacity | 4.5 cu. ft. |
| Dry Capacity | 4.5 cu. ft. |
| Noise Level (Wash/Spin/Dry) | 52 dB / 68 dB / 65 dB |
| Control Type | Touch Controls with LCD Display |
| Energy Rating | ENERGY STAR® Most Efficient |
| Water Consumption | 8,200 L/year |
| Power Requirements | 240V, 60Hz, 30A |
| Dimensions (HxWxD) | 89 x 69 x 74 cm |
| Weight | 98 kg |
| Max Spin Speed | 1300 RPM |
Warranty Information
- Full Warranty: 2 years 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
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.
Inverter Heat Pump Drying
Advanced inverter heat pump technology provides efficient drying with precise temperature control, protecting fabrics while reducing energy consumption by up to 50% compared to conventional dryers.
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.
Steam Technology
Steam technology helps to remove tough stains, reduce allergens, refresh clothes, and minimize wrinkles in both washing and drying cycles.
SmartThinQ Technology
Wi-Fi enabled for remote control via smartphone app, allowing you to monitor cycle status, download additional programs, receive completion alerts, and diagnose issues remotely.
All-in-One Operation
Complete laundry solution in one unit - wash and dry clothes automatically without transferring loads between machines.
Smart Drying Features
Sensor Dry
Automatically detects moisture levels and adjusts drying time for optimal results
Wrinkle Care
Tumble clothes without heat periodically to prevent wrinkles from setting
Quick Dry
Rapid drying cycle for small loads when you're in a hurry
Eco Dry
Energy-efficient drying using lower temperatures over longer periods
Sanitary Dry
High-temperature cycle to eliminate bacteria and allergens
Delicates Dry
Gentle air drying for delicate fabrics that require special care
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 |
| Poor cleaning results | Overloading, wrong detergent, incorrect program | Reduce load size, use HE detergent, select appropriate program |
| Clothes not drying properly | Overloading, lint filter clogged, venting issues | Reduce load size, clean lint filter, check venting system |
| Water not draining | Drain hose clogged or kinked, pump filter blocked | Check drain hose for obstructions, clean pump 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 |
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 venting and contact service if needed
Manual Downloads
Current Model Manuals
WM3997HWA
4.5 cu.ft. ThinQ Washer Dryer
WM4000HWA
4.8 cu.ft. Steam Combo
WM3900HWA
4.5 cu.ft. Graphite Combo
WM3488HW
4.2 cu.ft. White Combo
Popular Previous Models
WM3998HBA
4.5 cu.ft. Black Combo
WM3670HWA
4.5 cu.ft. Ventless Combo
WM3455HW
4.3 cu.ft. Compact Combo
WM3170CW
2.3 cu.ft. Compact Combo