Bathroom on same circuit as other rooms
I’ve already posted a question in this sub today but now I’ve gone down another potentially scary rabbit hole and I’m freaking out a bit. We just had a switch in the bathroom go bad and now I’m terrified my house is going to burn down. We will be calling an electrician but I’m just trying to get a rough idea how bad this might be.
We bought this house last year. Previous owners had the house wired for a generator so there is a second electrical panel next to the original that they put all the important things on. Everything is labeled so poorly and when I flipped off the breaker to the bathroom we discovered this also killed all 4 outlets in the bedroom next to that bathroom as well as the front exterior lights, entryway lights, and two sets of ceiling lights in the kitchen. Not sure if it was always like this or if maybe things got combined on the secondary panel for the generator. My spiral started because I was confused why the breaker showed 20 amps for this circuit but the light switch that failed says 15a with 14AWG wire. So I’m googling it and technically I guess this is allowed but everything I’ve read is saying the bathroom circuit can’t be supplying power to other rooms. The bathroom has one GFCI outlet and three switches, one for the vanity light, one for the light over the shower, and one for the exhaust fan. Assuming there is an open breaker somewhere (which is very possible because so many on the original panel are blank) how difficult is it going to be to “move” these other rooms to their own circuit?