Hummed when start button was pushed.

Safety first, so unplug the dryer. Next remove the two phillips head screws @ lower left and right front corners and take the front panel off. You will have to disconnect the door switch sensor wires which are yellow and white, marking the sensor so you can replace correctly. Next remove the front tumbler assembly with 4 screws, two on each side. Be sure to remove the automatic dry sensor wires. Then remove the belt by either reaching un under the tumbler and releasing the tension or taking the back access panel off w/ 4 screws and releasing the tension. Then once the belt is loose you can remove the tumbler. Then remove 2 screws and take the thermostat cover off. I removed the multi-temp thermostat w/ 2 screws rather than unhooking the wires and I did the same with the thermal fuse. Next remove 1 screw out of the blower housing cover and the 2 screws from the motor support. Once loose you can pull the motor out a little and unhook the wiring. Once out you will need to remove the pulley, blower housing and fan, and replace on new motor and put the new motor on the motor housing. Replace in reverse order and you should be done.