Just before a major trip to town yesterday, I discovered that the window on the trailer door had somehow slipped down about an inch, opening an impromptu 1/4″x12″ fresh air slot at the top of the window. That explained the draft during the cold, high wind here the day before. Repairs would have to wait though, since a combination laundry and grocery run would prevent taking the time to disassemble the thing and figure out what would be needed to fix it.
So today, I removed the screws squeezing the inner and outer plastic window frames together. Ugh. Small pins molded into both frames that retain the edges of the glass had sheared off at the bottom, letting the glass slowly slide down from its own weight. I’m not sure why, though the door has had an unhappy existence in terms of sag, and takes some shoving now