Im installing an exterior gfci. It comes from the breaker to a juntion box, to the exterior box. Inside i have a 20amp single pole switch controlling the gfci. Its supposed to be for running power tools and Christmas lights. I have power in the box. The gfci is lit. I can test it and reset it by pressing its buttons. Works fine in that aspect. When I touch the side screws with a tic test, it lights up and beeps. But when I try to tic test the hot slot on the outlet nothing happens. I tried plugging power tools into it. Still no sign of power. I plugged one of those gfci testers that tell you how your wiring might be bad with the different lights on it and the gfci tester built into it - nothing. If the wiring was bad it would light up and indicate which way its bad. I switched the gfci with another. Same brand, same supply, exactly the same bought it the same day. It did the same thing.
I have gfci/afci 20amp breaker. From there 12/2 to a juction box where its wire nutted to 12/2 type uf to go outside. Hot wire goes to the switch and then to the gfci line side. Neutral and ground straight to gfci, neutral on white on the line side. Ive had devices fail in the past, but two in a row? Any ideas?