My P2S is just a few weeks old and is facing X-Axis error. I checked the rails and belt and can‘t find anything. When the laser is switched off the belt and laser head can be moved end to end. 
End sensor is working (LED goes on).

If I switch on the laser, it starts making shaky noises. Normally you can’t move the head. In Y-Axis everything is normal. In X-Axis, I can move the head by hand. It is possible to move the head with the close up cam, but the movement is not aligned and moves just randomly to „a“ position, no longer following the x coordinate.

The laser is actually unusable.

Any ideas to fix this?