Bush oven displays E11 and the fan-assisted mode does not work, though conventional heating may still function.

Safety first: Disconnect power and allow the oven to cool before removing the rear panel inside the cavity.

• Inspect the fan element: Remove the internal rear cover inside the oven to expose the circular fan element. Look for cracks or burn marks.
• Test the fan element: Disconnect the element terminals and measure resistance. An open circuit indicates a failed element that must be replaced.
• Check the fan motor: Spin the fan blades by hand; they should move freely. If stiff or noisy, the motor may be failing. Test motor resistance and replace if open or shorted.
• Inspect wiring and selector switch: Check for loose or burnt connectors at the element, motor, and selector switch. Repair or replace as needed.
• Reassemble and test: After replacing faulty parts, restore power and test fan-assisted mode. If E11 persists, the control PCB fan circuit may be defective.