Drain Installation Guide
Tools Needed for Drain Installation:
- Adjustable wrench
- Pliers
- Screwdrivers (flat and Phillips)
- Bucket or container
- Towels for cleanup
Step-by-Step Drain Installation
- Choose Drain Location: Select a proper drain location with adequate height and accessibility for the drain hose.
- Prepare Drain Hose: Ensure drain hose is not kinked or twisted and has proper clearance.
- Connect Drain Hose: Route the drain hose into a standpipe or laundry tub with a high loop to prevent backflow.
- Secure Drain Hose: Use hose clamp to secure drain hose connection and prevent dislodging during operation.
- Check Drain Height: Ensure drain height is between 60-90 cm from floor for optimal drainage performance.
- Test Drain System: Run a short drain cycle to check for proper water flow and no leaks.
- Final Inspection: Verify all connections are secure and water drains completely without backup.
Drain Specifications
| Drain Hose Diameter | 1.5 inches (38 mm) |
| Drain Hose Length | 1.5 meters (standard) |
| Maximum Drain Height | 90 cm from floor level |
| Minimum Drain Height | 60 cm from floor level |
| Drain Pump Type | Direct Drive Drain Pump |
| Drain Flow Rate | 20 liters per minute |
| Drain Connection Type | Standard standpipe or utility sink |
| Anti-Siphon Feature | High loop drain hose installation |
| Drain Filter Location | Front access panel (lower right) |
| Emergency Drain Option | Manual drain hose provided |
Drain System Warranty
- Drain Pump Warranty: 5 years parts and labor
- Drain Hose Warranty: 2 years replacement coverage
- Full System: 10 years on Direct Drive drain system
For drain system service, contact LG Customer Service at 1-800-243-0000 or visit LG.com/drain-support
Drain System Features
Direct Drive Drain Pump
LG's innovative Direct Drive drain pump provides reliable water removal with reduced noise and increased efficiency, directly connected without belts for better performance.
Smart Drain System
Advanced sensors monitor water flow and detect drain blockages, automatically adjusting pump operation to ensure complete water removal during each cycle.
Easy Clean Drain Filter
Front-accessible drain filter makes maintenance simple, allowing easy removal of lint, debris, and foreign objects that could cause drain clogs.
Anti-Clog Technology
Specialized drain path design and pump operation prevent common clogging issues, ensuring consistent drainage performance throughout the machine's lifespan.
Emergency Drain Feature
Manual drain option allows water removal during power outages or pump failures, preventing stagnant water and potential damage to laundry.
Quiet Drain Operation
Sound-dampening technology and optimized pump design minimize operational noise during drain cycles for quieter laundry room experience.
Drain System Components
Drain Pump
High-efficiency direct drive pump for reliable water removal
Drain Hose
Flexible, durable hose with anti-kink design for optimal flow
Drain Filter
Easy-access filter for debris removal and maintenance
Water Level Sensor
Monitors water removal and detects drainage issues
Drain Path
Smooth, optimized flow path to prevent clogs and backups
Emergency Drain
Manual drainage option for emergency situations
Drain System Troubleshooting
| Drain Problem | Possible Cause | Solution |
|---|---|---|
| Water not draining | Drain hose clogged, pump failure, filter blocked | Check drain hose for obstructions, clean filter, inspect pump |
| Slow draining | Partial clog, kinked hose, drain height issue | Clear obstructions, straighten hose, check drain height |
| Drain error code (OE) | Drain system malfunction, blockage detected | Check drain system, clear blockages, reset machine |
| Water leaking from drain | Loose connections, damaged hose, worn seals | Tighten connections, replace damaged components |
| Drain pump noise | Foreign objects, worn pump, air in system | Check for objects, clean pump, bleed air from system |
| Incomplete drainage | Drain height too high, pump weakness, clog | Adjust drain height, check pump performance, clear clogs |
Drain System Error Codes
- OE: Drain error - Check drain hose and pump for blockages
- dE4: Drain pump malfunction - Contact service center
- FE: Flood detection - Check drain system and water supply
- IE: Water supply issue affecting drainage
- LE: Motor issue impacting drain pump operation
- UE: Unbalanced load affecting drain cycle
Drain Manual Downloads
Current Model Drain Manuals
WM3900HWA
Drain System Manual
WM4000HWA
Drain Maintenance Guide
WM4200HWA
Smart Drain System
WM4500HWA
Advanced Drain Technology
Drain System Components
Drain Pump Manual
Pump Replacement Guide
Drain Hose Guide
Hose Installation Manual
Filter Maintenance
Drain Filter Cleaning
Emergency Drain
Manual Drain Procedures