Researched the trouble and decided to order the parts to bring with me out to visit family in California for the holidays and fix my brother's clothes dryer. The parts will be installed regardless of the trouble found. With any luck and fortune, the parts will fix the dryer trouble. Ordered belt, tensioner & roller kit, and door switch.
Mike said he was just going to order a new set of laundry machines, but I persuaded him to let me try fixing it as I am confident that I will find and fix the trouble--stating that appliances should last a lifetime. Thanks to AppliancePartsPros.com helpful videos and availability of repair parts to DIY appliance repair.
Merry Christmas and a Happy New Year to all!