Thanks for that it doesnt seem to be a fault i think it is a safety feature as it states in the booklet “The cooling fan may switch itself on every so often during cooking in order to reduce energy consumption . Once cooking is complete and the oven has been switched off, the cooling fan may continue to run for a
certain period of time . When the oven door is opened during cooking, the heating elements switch off”
It just seems crazy to check or to add food into this oven you have to program all the settings everytime the door is opened during cooking.
I did say it turns off but it more of a reset the oven returns to the state it was before i wanted to use it if that makes sense