If it beeps once when start is pushed then it may have a broken belt or a failed thermal fuse. If it triple beeps when start it pushed then it could have failed door switch or a loose wire connection in the door switch circuit. I added a link to a previous question and answer below that should assist in diagnosing the failure.
NOTE: Disconnect the power cord before servicing the dryer.
Why won't my HE3 dryer start instead of a beep?
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services