LG Washing Machine Error Sud: What It Means and How to Fix It
Short answer
Sud on a LG washing machine means: too much foam detected; the washer adds a suds-reducing cycle (~2 h extra) and may stop in spin to prevent leaks. First step: Use less detergent until sudsing stops.
Too many suds
How to fix it
- 1Use less detergent until sudsing stops.
- 2Use HE detergent; fill liquid detergent only to the Max line.
- 3Remove the liquid-detergent cup when using powder.
- 4Use one pod per load, placed directly in the drum.
Applies to: LG front-load washers
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Source
Based on LG's official error code information: LG US – LG Front Load Washer - Error Code List(New). Last checked 2026-10-28. Codes and their meaning can differ by model and region; check your appliance's manual.
Frequently asked questions
What does LG washing machine error code Sud mean?
Too much foam detected; the washer adds a suds-reducing cycle (~2 h extra) and may stop in spin to prevent leaks.
How do I fix Sud on a LG washing machine?
Use less detergent until sudsing stops. Use HE detergent; fill liquid detergent only to the Max line. Remove the liquid-detergent cup when using powder. Use one pod per load, placed directly in the drum.