On Friday night we turned on the air conditioner for a few minutes to cool down Mia's room, and it didn't work. Woe. On Saturday, we called our usual climate-related appliance people and they agreed to come out without charging us for a weekend call, which was nice, but then he was three hours late for the "window," which was less nice. And then he told us that we either had to clean the coils for $1300, or, and this was his professional recommendation, replace the whole thing for $4900, which was not nice at all.
Chris and I were very upset. We sobbed to our parents hoping someone would offer us the funds to replace the damned thing and instead, my father in law recommended that we call his people for a second opinion. I almost didn't do it, I almost went right ahead and ordered a new furnace (actually heat pump) just to be sure it would be installed before it got hot again. But I did call, and the guy from the second place came today, and he fixed it with a piece of duct tape. The door switch was loose, the coils are fine.
I am currently accepting suggestions of precisely what words I should use to cuss out the service manager of the first place. Get to work.