GFCI Wiring Problem
I'm trying to replace a standard outlet in my lavatory with a GFCI. I've done this before with no problems. This time the GFCI won't test or reset, but there is still power to the outlets downstream. The orange GFCI light comes on, and the reset button sounds like a doorbell if you push it in and hold it. White wires to silver terminals, black to brass. I was pretty sure I had the line and load done correctly, but just to be sure, I reversed them. That time, no light, no noise, but no test or reset, either. Still power downstream. The box is a metal and grounded. There was no additional grounding wire on the receptacle I removed, and I did not add one to the GFCI. The old receptacle showed "grounded" with my tester. Am I doing something wrong, or could it be a defective GFCI? Thanks!