Hi everyone I have an AEG single oven – B2100-4-M that turns itself off about 20 mins – light, fan everything. Then it comes back on again for a short while then off again throughout the cooking cycle. I think it must be something to do with the thermostat or a cut off switch kicking in. Does anyone have any idea what it could be and the part number required please. PNC 944185044, Serial No – 41383113. Many thanks Mog