I installed a ceiling fan in my house. We have tall ceilings, so I was up on a ladder for a while. This model didn't have a pull chain at all, only a remote. It wouldn't work, and wouldn't work. I called the installation support after a couple of days of frustration. After I told the guy my problem, he says "this is a really dumb question, but did you take the shrink wrap off of the battery?" The single battery was 100% shrink wrapped in clear wrap. Apparently this was a known issue because he immediately knew what the problem was.

That was pretty frustrating.