Hi I'm John I will help you with the dryer problem.
does the motor hum instead of starting up
please send me the model number so I may assist you better.
Yes it just hums. Model #DPSR405GA0WW
Ok, open the dryer door and remove the screws at the top of the door opening and lift the top up then remove the screws inside the front panel then remove the front panel .
Remove the belt from the motor pulley and pull the drum out now you can get at the motor, if you require more assistance let me know please.
Thanks glad to help out.