My plan is to try to figure out if it's something I can deal with before either bringing them somewhere to be fixed or selling them as-is/for parts.
They all appear like they should be working, accept power, LED goes on/off with pedal latching, guitar signal travels through but with no delay.
I know many of you are far more knowledgeable than I am, does anyone know where a good starting point would be for troubleshooting?