Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Voltage tester
Step-by-Step Installation
- Choose Installation Location: Select a well-ventilated area with proper clearance on all sides on a solid, level floor.
- Remove Shipping Materials: Remove all shipping bolts and packaging materials from the dryer.
- Ventilation Setup: Install proper exhaust venting according to local building codes and manufacturer specifications.
- Gas Connection (if applicable): Connect gas line using approved connectors and check for leaks with soap solution.
- Electrical Connection: Connect to properly grounded 240V outlet for electric models. Follow local electrical codes.
- Level the Dryer: Adjust the leveling legs to ensure the dryer is level from front to back and side to side.
- Test Run: Run the dryer through a complete cycle to check for proper operation and ventilation.
Specifications
| Model Series | DLEX3900W / DLGX3901W |
| Type | Heat Pump Electric Dryer |
| Color | White / Graphite Steel |
| Capacity | 7.4 cu. ft. |
| Noise Level | 62 dB |
| Control Type | Touch Controls with LCD Display |
| Energy Rating | ENERGY STAR® Certified |
| Technology | Heat Pump Drying System |
| Power Requirements | 120V, 60Hz, 15A |
| Dimensions (HxWxD) | 76 x 68 x 31 cm |
| Weight | 58 kg |
| Moisture Sensor | Yes - Auto Dry |
Warranty Information
- Full Warranty: 1 year parts and labor
- Heat Pump Warranty: 10 years on heat pump system
- 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
Heat Pump Technology
Advanced heat pump system recycles hot air to dry clothes efficiently, using up to 60% less energy than conventional dryers while being gentle on fabrics.
LG ThinQ Technology
Wi-Fi enabled for remote control via smartphone app, allowing you to monitor cycle status, download additional programs, and receive completion alerts.
Sensor Dry System
Advanced moisture sensors detect when clothes are dry and automatically shut off the dryer, preventing over-drying and saving energy.
TurboSteam™
Steam technology helps to reduce wrinkles and refresh clothes without washing, saving time and energy while keeping clothes looking their best.
Dual Inverter Heat Pump
Variable-speed compressor and fan adjust drying performance based on load size and fabric type for optimal efficiency and fabric care.
Sanitary Cycle
Eliminates 99.9% of bacteria and allergens using high-temperature steam, perfect for sanitizing bedding and children's clothing.
Drying Programs
Normal Dry
Standard drying for everyday cotton items and mixed loads
Delicate Dry
Gentle low-heat drying for delicate fabrics and synthetics
Heavy Dry
Extended drying time for heavy items like towels and jeans
Quick Dry
Fast drying for small loads or lightly damp items
Wrinkle Care
Steam refresh cycle to reduce wrinkles in stored clothing
Sanitary Cycle
High-temperature steam to eliminate bacteria and allergens
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Dryer won't start | Power issue, door not closed properly, circuit breaker tripped | Check power supply, ensure door is latched completely, reset circuit breaker |
| Clothes not drying | Lint filter clogged, vent system blocked, overloaded | Clean lint filter, check vent system for blockages, reduce load size |
| Dryer overheating | Ventilation restricted, thermostat failure | Check and clear ventilation system, contact service technician |
| Unusual noises | Foreign objects in drum, worn rollers or bearings | Check for foreign objects, inspect drum rollers and bearings |
| Error codes displayed | Sensor issues, component failures | Refer to error code chart below, contact service if persistent |
| Vibration during operation | Unbalanced load, uneven floor, shipping bolts not removed | Redistribute load, level the machine, ensure shipping bolts removed |
Error Codes
- tE: Temperature sensor error - Check temperature sensors
- dE: Door not closed properly - Ensure door is fully closed
- FE: Flooding detected - Check for water leaks
- LE: Motor issue - Contact service center
- HE: Heater error - Check heating elements
- OE: Vent blockage - Check and clear ventilation system
- PF: Power failure - Reset dryer after power restoration
Manual Downloads
Current Model Manuals
DLEX3900W
7.4 cu.ft. ThinQ Heat Pump Dryer
DLGX3901W
7.4 cu.ft. ThinQ Gas Dryer
DLEX3700W
7.3 cu.ft. Electric Dryer
DLGX3701W
7.3 cu.ft. Gas Dryer
Popular Previous Models
DLEX3570W
7.4 cu.ft. Electric Dryer
DLGX3571W
7.4 cu.ft. Gas Dryer
DLEX3470W
7.3 cu.ft. Steam Dryer
DLGX3471W
7.3 cu.ft. Steam Gas Dryer