If you moved it and it worked for a bit and then stopped again. That makes me think that there is a loose connection, short or something along those lines.
If it's the Amaya single head, those have more automated electronic type systems, so those could be going out that are also. The auto tension sensor can lead to strange quirks when they aren't working.
I actually haven't worked with the Amaya personal, this is coming from my digitizing customers that have them and what they have find out in their instance, so take it for what it's worth.