Product review (5 stars): it took a half hour to install and reassemble the dryer and it is now running like a charm
This is the first item I have ever reviewed, and everything that I purchase is based on prior customer reviews.  Initially, our dryer would run for several weeks even when the door was open, then it quit running altogether.  I did some cursory research and took a guess that it might have been a faulty door switch (I did not have the equipment to test it in advance).  Once the door switch arrived, it took a half hour to install and reassemble the dryer and it is now running like a charm.  I saved myself $500 at a minimum for a new dryer with this $13 part and would highly recommend.