[Alan Anderson]

Please show us the code where you're opening the compressor in Begin, and where you're calling its control loop in Periodic Tasks.

You can select the relevant section of the Begin.vi, then choose "Create VI Snippet from Selection" from the Edit menu. It'll create a .png file with the name and location you select, which you can then attach here. We'll be able to see the picture easily, and it will be live LabVIEW code that we can run if we want to check something for more detail.