I have an ariston dishwasher. Not sure of the model number. Its silver, has a nob to the left, an on/off button to the right, ans a set of 4 lights to the right of the button. I cant get my dishwasher to start, the first and third light keep flashing together. Even when I close it from the power point, they still flash together when turned back on. I dont know what to do.