A few days ago I was using a multimeter to check for current to the thermostat on my garage refrigerator. I wasn't thinking and did something wrong (wrong HOT, I believe) and power to the refrigerator died. Believing I'd tripped the circuit breaker, I checked the panel but there were no tripped breakers. The multimeter shows no current to the outlet. The refrigerator functions when plugged into a different outlet (via extension cord so it's not an actual workaround).
I've tested all other outlets in the house and there is one that appears like it could be on the same circuit (given proximity and common sense, an unsafe criterion for sure), but there is also an outdoor outlet that is not functional. I can follow the circuit from that outlet for a bit and it does not seem to be on the same circuit (though who knows if that's true or not). I've also reset all breakers in the panel and no change. Additionally, I've walked through the house and tested/reset all GFCI outlets that I could find.
At any rate, it seems like these three outlets could be on the same circuit and that I somehow shorted it when I tested incorrectly. What can/should I do to trace and resolve this?