I have the kitchenaid dishwasher

Question

i have the kitchenaid dishwasher model #kudv03ctss0.the clean light stay blinking and when i hit the start it just blinks and then stops but the clean light stay blinking constantly.if i hit the cancel button i hear a um noise as if it going to turn on but nothing happens and the light stays blinking. what do you think might be the issue .