I was planning to replace a three way switch in my garage, but after replacing it, a section of my house went dark. I ended up replacing the original switch to do some troubleshooting. The problem is, I forgot how the original switch was wired. In the switch box, there is one hot 2 wire line coming in, one (not hot) 2 wire line going out, and a (not hot) 3 wire line going out. This makes me think that the switches are part of a circuit, leading me to assume that the non-hot 2 wire line was a continuation of a circuit (I can't think of another reason why there would be one hot line coming in and one non-hot line coming in).
Below is a picture of how I have it wired. The top right line is the hot line. The bottom left line is the non-hot line. The top left line is the 3 wire line.
The three way switch works, as expected, but the other section of my house is still dark. I've tried the following:
Hooking the hot wire up to different lines, to see if that will continue the power.
Running an external wire from this hot line to the next switch (six inches away) to see if that power source would power the switch (it didn't).
Flipping each breaker in my house, to ensure they're reset.
Face timing with my Dad (painful).
I'm honestly out of ideas. The goal at this point is to just replace the original switch and repair power to the other section of the house. If anyone has any other thoughts, I'd love to hear it. Thanks in advance.