Newly purchased Aufero 1 developed strange symptoms: inconsistent power control, power too high, no power at times, power failed to turn off at end of job. Ortur responded quickly with new motherboard but symptoms continued.
I later discovered that a screw had come loose and it shorted out electric contacts to laser unit.
A winning entry in the “Do not expect your new laser to be correctly assembled” category! 
Those great photos make the problem obvious, but it’s definitely not something you should find (or have to go looking for) in a new machine.
On the upside, you now have a good idea of what might cause the next problem and a backup controller board. 
