Whirlpool duet dryer does not run

You did not say if the motor is running, I have to assume that it is not.
You can try this...
Turn off the power to the dryer, reach inside the drum and try to rotate the drum 1/4-1/2 turn. Then turn your power back on and push the start button.
Sometimes motors will get a dead zone in them and this will move it from the dead zone.
If that doesn't help then you need to check a little farther into why it is not working.
Could be a faulty motor, faulty start switch, broken belt, or maybe a faulty timer switch.

I hope this helps