Washer-dryer makes a scraping or metallic noise when the drum turns, especially at low speed.

Safety first: Unplug the appliance before reaching into the drum or removing panels.

Step-by-step checks:

• 1. Inspect drum interior: Run your hand gently around the inside of the drum to feel for protruding objects or sharp edges. Check the holes for trapped items.
• 2. Check drum paddles: Ensure paddles are secure. Remove a paddle (if designed to be removable) to access the gap between drum and tub and retrieve foreign objects.
• 3. Access via heater or sump: Remove the wash heater or sump hose to gain access to the space under the drum and remove trapped items with long-nose pliers.