LG
WM3420C*
Washing Machine
LG WM3420C* — Error Code FE
LG WM3420C* error code FE: Water overflow fault.
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Last updated:
Methodology: We combine manufacturer references with recurring service patterns, then review for safe, step-by-step repair guidance.
Sources: Manufacturer fault-code sheets, service manuals, and recurring field-repair patterns.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
Looking for the full diagnosis and repair guide? View complete LG Washing Machine error code FE guide →
Repair guidance: the symptoms and steps below come from the canonical LG Washing Machine FE guide and apply to WM3420C* unless your manual says otherwise.
Symptoms on WM3420C*
- ⚠️ Error code displayed
- ⚠️ Machine stops mid-cycle
- ⚠️ Cycle won't complete
How to Fix Error FE on WM3420C*
- 1 Unplug the washing machine for 60 seconds then plug back in — this resets the control board and clears many temporary faults
- 2 If the error persists after basic troubleshooting, contact a qualified appliance technician
🛠️ You'll need: Screwdriver set, Towels, Flashlight
· Time: 30–120 min
Questions People Also Ask for Error FE
What does LG Washing Machine error code FE mean? ▼
Error code FE on a LG Washing Machine means: Water overflow fault. The appliance detected this condition and has stopped or limited operation to prevent further damage.
How do I fix LG Washing Machine error code FE? ▼
First, unplug the washing machine for 60 seconds to reset the control board. If error FE returns, the root cause (water overflow fault) needs to be addressed — check connections, filters, and hoses before calling a technician.
Is it safe to use my LG Washing Machine with error code FE? ▼
It depends on the cause. Most FE errors mean the appliance has stopped itself as a safety measure. Check the 'Should I unplug it?' section above for specific guidance on this error.