• Verify the circuit breaker for your oven is in the ON position; if tripped, switch it OFF then back ON
• Ensure the oven door is completely closed and latched properly
• Check that all control panel settings are appropriate for your cooking mode
• Allow the oven to cool for 15-20 minutes before attempting to use it again
• Verify adequate ventilation space around the back and sides of the appliance
• Confirm proper 240V power supply is reaching the unit (listen for relay clicks when powered on)
• Perform a complete reset by turning OFF the circuit breaker for 60 seconds, then turn it back ON
• Check that all oven racks and cookware are properly positioned and not interfering with heating elements
• Inspect visible wiring connections at the back of the unit for any obviously loose or disconnected plugs
• If error persists after reset, contact a certified Miele service technician for professional diagnosis and repair