Error Codes List
| Error Code | Description | Severity |
|---|---|---|
| IE | Water Supply Error - Insufficient water intake | Medium |
| OE | Drain Error - Water drainage issue | Medium |
| FE | Flooding Detected - Water overflow detected | High |
| LE | Motor Error - Direct Drive motor malfunction | High |
| dE | Door Error - Door not properly closed | Low |
| UE | Unbalanced Load - Load distribution issue | Low |
| TE | Temperature Sensor Error | Medium |
| PE | Pressure Sensor Error | Medium |
| CE | Communication Error - Control board issue | High |
| HE | Heating Element Error | Medium |
Error Code Severity Levels
- Low: User can resolve - No service required
- Medium: May require user intervention - Basic troubleshooting
- High: Professional service required - Contact LG Support
Troubleshooting Guide
| Error Code | Possible Causes | Recommended Solutions |
|---|---|---|
| IE | Water supply valve closed, clogged filter, kinked hose, low water pressure | Check water valves, clean inlet filter, straighten hoses, ensure adequate water pressure |
| OE | Clogged drain pump, kinked drain hose, drain hose too high | Clean drain pump filter, check drain hose position, ensure proper drainage height |
| FE | Overfilling, leaking hoses, faulty water level sensor | Check for leaks, ensure proper hose connections, contact service if persistent |
| LE | Motor overload, wiring issues, control board failure | Unplug for 10 minutes, restart. If error persists, contact LG service center |
| dE | Door not latched, foreign object in door seal, door lock mechanism failure | Ensure door is fully closed, check for obstructions, clean door seal |
| UE | Uneven load distribution, heavy items on one side, machine not level | Redistribute load evenly, mix large and small items, ensure machine is level |
Quick Reset Procedures
- Power Cycle: Unplug the washing machine for 5 minutes, then plug back in
- Error Clear: Press and hold the Start/Pause button for 5 seconds
- Factory Reset: Hold Temperature and Spin buttons simultaneously for 3 seconds
Reset Procedures
Basic Power Reset
Unplug the washing machine from the power outlet for 5-10 minutes. This clears temporary errors and resets the electronic control board.
Error Code Clear
Press and hold the Start/Pause button for 5-10 seconds until the error code disappears from the display. This works for most temporary errors.
Factory Reset
Simultaneously press and hold the Temperature and Spin Speed buttons for 3 seconds. This restores all settings to factory defaults.
Memory Clear
Unplug the machine, wait 1 minute, then while plugging back in, press and hold the Power and Delay Start buttons for 10 seconds.
Child Lock Reset
Press and hold the Child Lock button for 3-5 seconds. If unresponsive, perform a basic power reset first.
Wi-Fi Reset
Hold the SmartThinQ button for 10 seconds to reset network connections. Reconnect through the LG ThinQ app.
Reset Sequence for Persistent Errors
- Unplug the washing machine from power
- Wait 10 minutes for complete discharge
- Check and clean all filters and hoses
- Plug back into power
- Perform factory reset procedure
- Run test cycle without load
Error Prevention
Regular Maintenance
Monthly cleaning of drain filter and door seal prevents common OE and FE errors
Proper Loading
Even distribution of clothes prevents UE errors and ensures optimal performance
Water Supply Check
Regular inspection of water valves and hoses prevents IE and FE errors
Level Adjustment
Ensure machine is perfectly level to prevent vibration and UE errors
Correct Detergent
Use only HE (High Efficiency) detergent to prevent oversudsing and related errors
Software Updates
Regular updates through ThinQ app prevent software-related CE errors
Monthly Maintenance Checklist
- Clean drain pump filter
- Wipe door seal and glass
- Run tub clean cycle
- Check water hoses for leaks
- Verify machine is level
- Clean detergent dispenser
Manual Downloads
Inverter V Series Manuals
WM3900HWA
Inverter V 4.5 cu.ft
WM4000HWA
Inverter V 4.8 cu.ft
WM4200HWA
Inverter V 5.0 cu.ft
WM4500HBA
Inverter V 5.2 cu.ft
Related Documentation
Installation Guide
Complete installation instructions
Quick Start Guide
Basic operation instructions
Energy Guide
Energy efficiency information
Warranty Information
Warranty terms and conditions