how can i fix my smeg oven model A42C-5?

HI just like to ask anyone, if they know whats wrong with my smeg oven,,rest of the cooker works fine,except the oven it went bang so i replaced the element. thermostat, main oven control switch,still will not work no fan or any think the light comes on when door is opened, i am wondering if its blown another part at the back of the cooker or is there a reset button in the back.i would be very grateful of any help