Washer-dryer emits a musty or mouldy odour from the drum

Safety first: Use only cleaning products suitable for washing machines. Do not mix chemicals.

• Run maintenance wash: Run an empty 90°C cotton cycle with a proprietary washing machine cleaner or 1–2 cups of white vinegar (if permitted by Rangemaster guidelines).
• Clean door seal: Wipe the gasket folds with a cloth and mild detergent, removing black mould and residue.
• Clean dispenser drawer: Remove and scrub the drawer and housing to remove mould and slime.
• Improve ventilation: Leave the door and dispenser drawer slightly open between washes to allow the interior to dry.