If the weight shown on the screen of your pasta maker keeps changing all the time (while weighing flour, for example), find out here what you can do to solve the issue.
The weight on the screen of my Philips pasta maker changes
The weight shown on the pasta maker changes all the time
If your pasta maker is touched during weighing, or it is located on a non flat surface, it will show a changing number on its screen.
Please make sure you are not touching your pasta maker (or its power cord) while weighing, and that it is standing on a flat surface.