Brad what series is your mill? My series 3 has 3 stepper drives one for each axis. I only see one on yours.
Not saying your other drives fell out in the move but
Maybe the older ones used all axes in one type drive.
To me the likely suspect is loose wire assuming all the fuses check good. I'd go one by one and check tightness.
I had the main fuse/breaker pop once and I had the same symptoms. put in new ones and everything worked just fine after that. maybe u pinched the main power cord? if all u did was move it nothing should have changed to where now it doesn't work.
If you are running this on a 220 breaker, make sure you are getting the power you need from each leg.
I had a breaker only deliver partial power to one side before.
Not sure what was wrong with it. It was a really old one though.