Drum light does not come on when door is opened but the power light and panel lights up and you push the start button it beeps a couple of time and want start.

It sounds like you could have a bad or maladjusted door switch. You will need to test it with a meter. You probably need to take it apart and clean it totally. That means to take each part apart and wash it out, except the motor, and grease the bearings and change the belt while you are at it. You will also want to test the thermal safety, too. Mark all wires when you unplug them.
Here are some manuals: https://dl.dropboxusercontent.com/u/8010163/Kenmore%20Dryer%20Manuals.zip
https://dl.dropboxusercontent.com/u/8010163/Electrical%20Theory%20and%20Diagnosis%20of%20Major %20Appliances%20Service%20Manual.pdf
https://dl.dropboxusercontent.com/u/8010163/How%20to%20use%20Test%20Equipment%20Service%20Manu al.pdf
https://dl.dropboxusercontent.com/u/8010163/How%20to%20Diagnose%20and%20Fix%20Everything%20Ele ctronic.pdf
https://dl.dropboxusercontent.com/u/8010163/Whirlpool%20Dryers.zip