Washer-dryer is extremely noisy during spin, with rumbling or grinding sounds.

Safety first: Unplug the appliance. Spinning a failing bearing can cause catastrophic damage.

• Manual spin test: Rotate the empty drum by hand. Listen for grinding and feel for roughness. Lift the drum up and down at the front; excessive play indicates bearing wear.
• Check pulley and bolt: Remove the rear panel and inspect the drum pulley and central bolt. Tighten if loose.
• Assess severity: If noise is severe and there is visible rust or water streaks from the bearing area, the bearings and seal have likely failed.
• Repair options: On many Bush washer-dryers, bearing replacement requires splitting or replacing the outer tub assembly, which is a complex level-5 repair. Consider replacing the complete tub or the appliance, or use a professional service.