I have an Ender 3 Pro that has yet to be used, since after initial out of the box assembly it doesn't seem to get power. I plug it in, flip the switch, and nothing. No fan in the PSU, no screen flicker, no sign of life in any way.
Double checked all the power cables going from PSU to motor, screen, extruder, etc. and they are all secured. The XT60 cable is firmly connected.
I checked the outlet, but it powers my desktop PSU fine. I checked the cord, but it works for other PSUs. I assumed it was the power supply, but replacing it with a new one gives me the same issue.
What other steps can I take to diagnose/fix this issue??