I have an oven model Dck731110m and every time I set the oven to cook in the top oven set at 200 degrees with a time set for 30 mins it cooks for a few. Injures then switches off and displays code F104 which then won’t let me change any settings/displays I have switched off the electric as per the manual to reset and still the same issue. The manual doesn’t give any error codes therefore am at a loss please help me as brand new oven i stalled Thursday 7th December.

Any thanks