Fan-assisted (convection) mode does not heat, but conventional top/bottom heat works

Safety first: Isolate the oven from the mains supply before starting any work.

• Access circular element: Remove oven racks and the rear interior panel inside the cavity to expose the circular element around the fan.
• Inspect the element: Look for cracks, hot spots, or burn marks. Any visible damage indicates the element should be replaced.
• Measure resistance: Disconnect the element terminals and test with a multimeter. A reading of infinite resistance means the element is open and defective.
• Check wiring and connectors: Inspect the wiring harness from the element to the rear of the oven and to the control board. Replace any burnt or brittle wires and ensure all connectors are tight.
• Control board check: If the element and wiring are good, the convection element relay on the electronic control module may not be switching. In this case, replace the control board.
• Reassemble: Refit the rear cavity panel, restore power, and test convection mode at 180–200°C to confirm proper operation.