I’m replacing a GFCI in my kitchen. I pulled out the old one without labeling the line and load wires. I flipped the appropriate breaker (I think) but still have power to one of the hot wires. Could I be getting a current back through the load wire?
Standard rule for a GFCI is
Part 1, hook up the
LINE terminals only, then stop. Do a test of the GFCI, run it through its paces and make sure it is fully operational. If it won't behave normally, you hooked it up wrong, back up and iterate on that.
Part 2. Then, power off again and hook up the
LOAD terminals. If that doesn't work (typically it trips), then back up and iterate on that, but you only have to back up to your successful checkpoint in part 1.
Where people get in trouble, especially newbies, is when they try to do both steps at once. Don't bother, ther are no brownie points for that.