Moved into a new house last week. House is 30 years old, eventually going to replace all the switches and maybe the outlets. Every outlet test fine except 1 GFCI plug in the master bathroom, the most important one cuz it powers my beloved bidet (see the lengthy bidet thread on this site if you question my manhood).
Every other outlet, switch, device in the entire house works fine. This GFCI outlet (actual GFCI, not a downstream outlet) is deader than Jonny Manziel's career. It can't be reset. I pulled off the faceplate and tested the line, load, and neutruls with a non-contact tester. All dead. Maybe I don't understand GFCI circuits all that well but even if the GFCI outlet went bad, the live wire coming in should still be hot, right? In addition, since the outlet has 4 lines into it, I'm assuming it must be an upstream GFCI that's protecting other outlets down the circuit. But every other plug and switch works fine? I looked for hidden outlets, outside outlets, couldn't find any. Before I bite the bullet and call an electrician, any ideas of what it could be?