Product review (5 stars): Cheap, but quality fix
Dryer stopped "clicking" (and starting) after pushing the start button.  For you laymen, that "click" is a relay-thus the name of this part.  For my dryer, it was a matter of removing a small metal panel in the back at top that runs the width of the dryer.  Unplug the dryer before doing anything-unplug the cable to the existing start button.  It comes out with a simple twist.