Washer-dryer emits a musty or moldy smell from the drum and door area.

Safety first: Unplug the appliance before cleaning internal parts.

Step-by-step checks:

• Clean door gasket: Wipe the gasket folds with a cloth soaked in diluted bleach or specialized cleaner. Remove any visible mold.
• Run maintenance cycles: Run an empty 90°C wash with a machine cleaner or white vinegar and baking soda to kill bacteria and remove residues.
• Leave door open: After each use, leave the door and detergent drawer slightly open to allow drying and prevent mold growth.
• Check drain: Clean the pump filter to ensure no stagnant water remains in the sump.

When to call a technician: Severe internal contamination may require partial disassembly and professional cleaning.