Hi dlsnyder,
There is actually a thread dedicated to this issue:
But… what I found was something different. You might want to try pluggin the cable that goes into the 3d print module into one of the other modules (like the laser module). I found that I had this problem only when the 3D print module was connected. When I connected the laser module, it booted just fine. If the suggestions in that thread do not hold any answers for you, you can at least narrow it down by using my suggestion here.
When I went to inspect the module (following the guide here: https://www.youtube.com/watch?v=3dSHRMNjkGo ) I found that my screw was stripped, like so many others, and I could not remove the nozzle to even begin to have a look. I suspect there was a loose wire or something… but I cannot say for certain, since I couldn’t get in there, so I put in a warranty replacement request…
Give those suggestions a whirl.