Diplomat oven heats up to temp,then cuts out,display goes off,then wakes up?

The oven heats up to the set temp then when reaching that it turns itself off, (not sure if the elements go off as well?) the display goes blank and then miraculously it all comes back on again fifteen minutes later with the display flashing. Additionally the oven control when turned back to off in an anti-clockwise direction trips the power in the house.

Any easy solutions.

Oven is Diplomat double oven ADP4610

The grill/top oven works fine.