Microwave shows F13; grill or convection functions may be disabled on combination models.

Safety first: Disconnect power and allow the oven to cool completely before working near heating elements.

• Cool-down: If the error appears after heavy grill use, allow the unit to cool for 30–60 minutes and try again.
• Inspect sensor area: On combination models, locate the grill/convection sensor near the top of the cavity. Check for visible damage or dislodged mounting.
• Check wiring (advanced): Remove the outer cover and trace the sensor wires back to the control board. Ensure connectors are fully seated and wires are not pinched or burned.
• Test sensor: Use a multimeter to measure sensor resistance at room temperature and compare to Miele specifications. Replace the sensor if readings are out of range.
• Control board: If the sensor and wiring are good, the control board input may be defective and should be replaced by a technician.