Originally Posted by LandoLincoln
I don't know what there would be to reconfigure. I don't have any lights that run on 240v. Nothing is 240v except for the power going to the elements, which I'm not going to be testing.
If your panel is like my documented design(s) then yes, you can test it easily with a standard 120V / 15A outlet without any rewiring required. This is possible since all the devices inside are 120V. The only devices that require 240V are the heating elements.
You simply need to hook up the 3 wires (120V HOT, NEUTRAL, and GROUND) correctly.
I tested my 30A panel exactly like this back when I first built it:
Disclaimer: This is for testing purposes only. Even safer would have been to attach the 120V/15A power cord to the 30A locking connector (instead of how it attached above) so that I could plug it/unplug it saftely.