Washer-dryer has a strong musty or moldy odor inside the drum

Safety first: Use appropriate cleaning agents and ensure good ventilation.

Step-by-step cleaning:

• 1. Run a maintenance wash:
  • Run an empty 90°C cotton cycle with a Siemens-approved machine cleaner or 1–2 cups of washing machine descaler.
• 2. Clean door seal:
  • Wipe the folds of the door gasket with a cloth and mild detergent or diluted bleach.
  • Remove any visible mold or residue.
• 3. Clean detergent drawer:
  • Remove the drawer and soak in hot soapy water.
  • Clean the drawer housing to remove mold and residue.
• 4. Improve usage habits:
  • Leave the door and detergent drawer slightly open between uses.
  • Use the correct amount of HE detergent and run regular hot cycles.

When to call a technician: If odor persists and you suspect hidden stagnant water or drainage issues, professional inspection is recommended.