I press the start button, but the dryer will not start.

Don't know if your dryer has one but it could be the start relay is bad .

First, check the door switch. Push and release it by hand and you should hear a click. If no sound, replace the door switch with this part.
If the switch is ok, press the cancel button on the machine. Then do this. press and hold the start button for 2 seconds then release wait 2 seconds and press and hold again for 2 seconds continue this pattern until the dryer goes into test mode. You will see all the lights on the control light up. press each button on the control one at a time 3 times each. (Do not press the cancel button) until the dryer begins to run. When the dryer starts to run then press the cancel button. Then your machine should function properly.

Belt probably broke

the relay is bad

check door "close"contact button/switch usually the culprit..

There is a switch assembly on the motor that activates when the motor is running. Centrifugal switch. It keeps it running when you release the switch. That is where to start. Eric

Hi, your start push button is malfunctioning. simply replacing this start switch will fix your issue.

Sounds like the motor is cutting out on its thermal fuse. The only cure is to change the motor.

Forgot to check the thermal fuse. Now working after changing fuse.

press the cancel button on the machine. Then do this. press and hold the start button for 2 seconds then release wait 2 seconds and press and hold again for 2 seconds continue this pattern until the dryer goes into test mode. You will see all the lights on the control light up. press each button on the control one at a time 3 times each. (Do not press the cancel button) until the dryer begins to run. When the dryer starts to run then press the cancel button. Then your machine should function properly. This is a secret test and reset for your dryers control, so please keep this between us. The whirlpool people would be heart broke if they see this posted on the web ;-) . If your dryer will still not start after this test, you may need a new control. If you need a part let me know and I can ship it right to you. Good luck and I hope this will fixYa and saves you the $400.00 it would cost for whirlpool to send a certified tech to come to your home.
Mike Anderson
Anderson Appliance Repair
9865)945-3808