I'm trying to deliver power to a simple circuit, and need help identifying the source of smoke and sparks from an outlet outside our house when I try to connect wires going outdoors.
The wires outdoors go to a 2 outlet receptacle in a shed and a switch & light located in a cave. I suspect there's a short in the circuit, because when I turn on 1 outlet of the 2 outlet receptacle, it's fine, but both can't be on or else smoke comes from the outlet from the house and the 20Amp circuit breaker turns off.
I included a diagram of my wiring job. I disconnected the light and attempted to wire in series. The only configuration I could think of making both outlets work was disconnecting the light bulb. When I flip the switch off, it will cut power to one of the outlets. So far so good. However, just recently the power supply outside the house started buzzing loudly and smoke/sparks come from the plug connecting the outdoors circuit when the switch was ON. I'm at a loss at where I went wrong wiring the circuit, and what's causing the apparent short circuit. Please ask if further clarification is needed.
EDIT: Green wire shouldn't come from the power supply as the drawing shows.
light fixture in cave (not sure why wires coming from cave end up at the outlet at the shed. Also, how do i get power to the light with one black wire carrying power?) power supply (red-green,white-white,black-black)