Today the mains tripped, after doing so twice, and checked voltage supply, ie the clock was flashing, but no oven heat. I had previously removed the bulb and changed it first, however, the fault remained. Finally, I removed the bulb and glass cover. The oven has been working ever since and fitted the glass cover, minus the bulb. Mealtime came and the steak was done. Happy wife too. Has anyone ever experienced this fault with a Neff oven mod B44552N5GB?