Read most possible causes on AppliancePartsPros website. After deciding on a course of action, I ordered the parts with expedited shipping, received them next day, installed them on same day received and everything is working fine. Congratulations to them for possessing and offering such an excellent diagnosis tool for the DYIer. It has worked well for me many times in the past. I would never hesitate to recommend them as I feel they are a first rate organization.
P.S. - Their excellent installation videos are top notch, making installation easier and illustrating how anyone can do it. This tends to boost the lay person's confidence.