I needed to clear the excess lint out of the machine itself (already cleaned out the lint chute but there was more behind the circles inside the drum) because it was taking too long to dry a load of laundry. I watched a video showing me how to take off the back of the dryer to replace the housing foam, so I figured I'd go ahead and do that, too. It was really easy. Replacing the foam took all of 10 minutes - most of the time was spent taking the back cover off and putting it back on. I wish I knew about the seal so I could replace that as well. I'm not about to go through the process of taking the back off the dryer again, but if I needed to again I will replace the seal. Turns out there was a TON and I mean a TON of lint inside the dryer! In all the nooks and crannies. So glad I cleaned it all out. After looking at a few more videos, I realize that the dryer door switch is really what the problem is in getting the clothes dry since the dryer still runs when I open the door and the light doesn't work (although clearing out all that lint will be very helpful). So I ordered a new switch and will replace that as soon as it arrives. Apparently, the videos are addictive!! :-)