LG
WM4100H*A
Washing Machine
LG WM4100H*A — Error Code SE
LG WM4100H*A error code SE: Spin motor sensor error.
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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 SE guide →
Repair guidance: the symptoms and steps below come from the canonical LG Washing Machine SE guide and apply to WM4100H*A unless your manual says otherwise.
Symptoms on WM4100H*A
- ⚠️ Drum not spinning
- ⚠️ Loud noise during spin
- ⚠️ Machine vibrating excessively
How to Fix Error SE on WM4100H*A
- 1 Unplug the washing machine for 60 seconds then plug back in — this resets the control board and clears many temporary faults
- 2 Test the sensor with a multimeter — check resistance against the spec in the service manual
- 3 Inspect the sensor's wiring harness for corrosion or loose connector
- 4 Replace the sensor if out of spec ($10–$50 part)
- 5 Check the drive belt — if broken or slipping, replace it ($10–$30 part)
🛠️ You'll need: Multimeter, Screwdriver set, Capacitor tester
· Time: 45–90 min
Questions People Also Ask for Error SE
What does LG Washing Machine error code SE mean? ▼
Error code SE on a LG Washing Machine means: Spin motor sensor error. The appliance detected this condition and has stopped or limited operation to prevent further damage.
How do I fix LG Washing Machine error code SE? ▼
First, unplug the washing machine for 60 seconds to reset the control board. If error SE returns, the root cause (spin motor sensor error) 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 SE? ▼
It depends on the cause. Most SE 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.