indesit oven fan assisted?

Problems with cooker, keeps smoking not quite sure which setting is for normal cooking, when i cook anything it starts to smoke and then i have to turn the oven off, is it the oven or i have not got it on the right setting?
Have not the model no. it is a single oven with two
dials, the first one has 6 settings with first one light
then theres two straight lines (one above other) then
what I think is the fan oven with the fan symbol inbetween the two lines? cannot describe the others,
sorry for not being descriptive enough, can anyone help?