I have a Samsung Dryer Model DV5471AEWXAA03. It heats up and drys clothes most of the time perfectly. But ocassionally and more frequently it stops and starts beeping. I have to open the door, check the lint trap, make sure the clothes are ok, spin the drum, slam the door and hit power and start and it starts working again. Sometimes it will finish drying the clothes at this point or sometimes I will have to go thru this process I just described ten or twenty times to get the clothes dry. Any suggestions