I have a Whirlpool Duet Dryer that powers on but won't start. The sensing light comes on and the timer comes on but nothing happens. The door and interior light is fine.

That could be a few different things ,broken belt,there's a switch on the belt pulley that stops the dryer from starting as a safety if the belt breaks,you didn't send the model number next time send it,open the door,look around the opening where you put the clothes in and you'll see a tag with the model number on it,could be a bad thermal fuse,high limit thermostat,the only way to tell is by getting in there with a meter and check it,the easiest thing to do is take the lid off and grab the belt and pull on it to see if it broke,check the door switch,push it in and out and make sure it's working,also on the back where the cord connects make sure you have 240 volts there if it's electric,if it's gas then you know you already have power because the light is on.if you need more help send model number and do a few checks and i can help you out.also have you seen any error codes come up,if so send them.