LG Washing Machine Error E4
⚡ Quick Answer: The LG washing machine E4 error indicates a malfunction in the door lock mechanism, typically causing the machine to stop mid-cycle with a flashing di... ✅ DIY Fixable
What Does Error E4 Mean?
The LG washing machine E4 error indicates a malfunction in the door lock mechanism, typically causing the machine to stop mid-cycle with a flashing display. This error is often related to water handling or sensor issues, preventing the washer from completing the wash cycle. Common symptoms include no progress in washing after the code appears, and potential problems with water fill, drain, or internal sensors.
Common Symptoms:
- Machine stops mid‑cycle with E4 displayed
- No regular wash progress after code appears
- Often appears related to water fill/drain/sensor issues
Possible Causes
- Not officially defined by LG for washers (high)
- Water handling or sensor-related malfunction (community consensus) (medium)
How to Fix Error E4
DIY Fix Basic user checks
- Turn off and unplug the washer for safety
- Ensure the water supply is on and hoses are not kinked
- Check that drain hose is properly placed and not blocked
- Try restarting the washer to see if the code clears
Technician Only Technician diagnosis of water/sensor systems
- Confirm model‑specific error code definitions from LG technical documentation
- Test and inspect water level sensor/pressure switch for proper operation
- Inspect inlet and drain valves/pumps for blockages or malfunction
- Check wiring and control board signals related to water sensing circuits
Parts needed: water level sensor/pressure switch, inlet valve, drain pump
- If code persists after basic checks
- If water leakage, unusual noises, or repeated interruptions occur during cycles
- If internal components need testing/parts replacement
Next step
Choose the next step for E4
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Pressure Switch
Detects the water level inside the tub and signals when to start or stop filling.
- Typical part-only price
- $25 - $65
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
Model-compatible Washing Machine parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Washing Machine Cleaner Tablets
Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.
Braided Washer Inlet Hoses
A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.
Washer Drain Hose Holder
Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | N/A |
|---|---|
| component | Door Lock Assembly |
| resistance | 10-30 ohms |
| part_number | LG 6601N-0031B |
| voltage_rating | 120V AC |
Common Questions
What does E4 error mean on LG washing machine?
E4 indicates a door lock malfunction, often related to water handling or sensor issues.
Can I fix LG washing machine E4 error myself?
Yes, you can check the water supply, hoses, and drain hose for blockages or kinks.
How much does it cost to fix E4 error?
$100–$300 for parts and labor, depending on the region and model.
When should I call a technician for E4?
Call a technician if the error persists after basic checks or if there are unusual noises or leaks.
Sources & References
Data last verified: 2026-07-26
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