Washer has a persistent bad smell (musty or sewage-like) even when empty.

Safety: Unplug the washer before cleaning internal parts.

• Clean pump filter: Remove and clean the filter as described for F05. Ensure no debris remains.
• Clean door seal: Wipe the seal folds with a cloth soaked in hot water and mild detergent or diluted bleach. Remove any black slime or mold.
• Detergent drawer: Remove and scrub the drawer and housing to remove mold and residue.
• Run hot maintenance cycles: Run an empty 90°C cycle with a machine cleaner or 1–2 cups of white vinegar and a small amount of detergent. Repeat monthly.
• Improve usage habits: Leave the door and detergent drawer slightly open between washes to allow drying and reduce mold growth.