Morphy Richards oven makes a loud rattling or scraping noise when the fan is running.

Safety first: Turn off power and allow the fan to stop completely before inspection.

Steps:

• Access fan: Remove the inner rear panel to expose the convection fan.
• Check for debris: Remove any loose screws, foil, or food pieces caught around the fan.
• Tighten blade: Ensure the fan blade nut is tight (note: often reverse-threaded). Tighten carefully.
• Spin test: Rotate the fan by hand. If rough or noisy, replace the convection fan motor and blade if bent.