After identfying that the problem was due to a damaged drum support roller, I decided to replace the bad roller instead of replacing the dyer itself.
The first thing was to remove the front cover and the front panels to expose the drum. (Only a few screws hold them in place.) Next, the drum was removed by first releasing the belt from the motor pulley and tensioner, and then pulling the drum straight out.
At this point the two rollers would be exposed. The triangular plastic retaining locks were removed by slightly prying them off. The old rollers were then removed and replaced.
Before putting everything back, this was a good time to vacuum all the accumulated lint inside, especially the lint that had accumulated around the motor assembly and the fire box.
(A pleasant surprise: I found a lot of coins inside the unit, enough to recoup half of what I spent for the new rollers.)
I removed the two screws on the top by the lint catcher. Then, per information from this website, I pried up the top. I reached down into the dryer and removed the two screws on the broken door switch and replaced it with the new part. I am a recently widowed, 55 year old and was thrilled to find good advice, information and instructions on your website!! Simple as could be!
Raise the top off of the dryer with a flat blade screwdriver in each front corner of the dryer. Disconnect power to the dryer. Remove old switch and install new switch. Test door and proper operation of dryer.
I take the screws out of the door, I removed the catch from behind inside the dryer door, I slid the new catch in the door and snapped it in place. After getting a new catch in the door I put the door back together and put the screws in. Easy repair
I diagnosed the problem, as a broken arm on the actuator for the door shut switch. I jumped the switch, and dryer worked. I went to this site, found the part I needed, ordered it/received it quickly, and proceeded to do the repair. The video that THIS particular part goes for, isn't' like MY dryer. My dryer hinges in the rear. You just remove the 2 screws on either side of the control panel, (right and left), pull forward on the panel, to ease its attachment, let it lie. Then with a small plastic pry tool, pop the 2 attaching points in the front of the dryer. Front end lifts up, like a hood on a car. My roommate held hood up, while I R&R'd the switch actuator. Went back together, in reverse of my taking apart. Worked great. Thanks a bunch.
Removed old catch and strike with screwdriver and needle nose pliers. Installed new parts. My old catch did not have comparible numbers so I just used the yellow one. Worked fine.