Mainly based on the other experiences on this site, I determined the door switch was faulty. Ordered and received a replacement very easily and quickly. Followed the awesome instructional video and even though it involved more disassembly than I had expected to just replace a door switch, the entire procedure itself was not difficult (and I am far from a handyman). Saved me a ton of money, that's for sure! Very impressed with the professionalism of this company.