After cleaning all of the vent pipes, which are pretty extensive for our dryer, the D80 code continued to occur. After calling Appliance Parts Pros, I spoke with an incredibly knowledgeable technician and he diagnosed the problem as the dryer igniter. I decided to also replace all the thermostats and thermistor while I was at it. All the parts were reasonably priced and arrived in a few days. I'm NOT a handy person when it comes to appliances. I'm a computer programmer, but this was above and beyond my comfort zone. With the help of the amazing videos that go along with these parts, I had the confidence, and information, I needed to take the dryer apart! Being able to accomplish this task, in the midst of this horrible pandemic, was truly a blessing.
I want to thank all the Appliance Parts Pros technicians I spoke with that helped answer my questions, many of them rudimentary I'm sure. I would highly recommend this website to anyone who has an appliance project to tackle!!!