Washer-dryer leaves grey or black marks on clothes after washing or drying.

Safety first: Unplug the appliance before deep cleaning internal areas.

• Step 1 – Inspect door seal: Look for black slime or mould on the gasket. Clean thoroughly with a suitable cleaner.
• Step 2 – Maintenance wash: Run a hot maintenance cycle with machine cleaner to remove internal residues.
• Step 3 – Bearing check: If marks are oily and accompanied by rumbling noises, suspect bearing failure. See bearing fault guidance.
• Step 4 – Reduce softener: Use less fabric softener and high-efficiency detergent to reduce build-up.