I've got a circuit in my house (built early 1990s) that feeds two receptacles in my garage and 2 on the exterior of my house. None of these receptacles are GFCI, at least that I can tell (no reset buttons). All I keep plugged into these outlets with any regularity is a small deep freeze and a small beer fridge (both in the garage). Last week I noticed the circuit wasn't working, so I tried flipping the breaker a few times, which didn't help. I tried all the other breakers in the house, just to be sure, since I know at least one is mislabeled, and that didn't help. I even flipped the main disconnect outside the house to see if that helped, but to no avail.
I plugged the freezer and fridge into another circuit via extension cord and decided to address the problem the following weekend. And when I went to look into it again...voila! It's working now. I hadn't done anything to fix it, with the exception of trying it once or twice during the week in a bit of blind hopefulness.
Any explanations why this would happen? Could this be a sign of deeper problems?