[chris.boyle]

We kept having the same problem. It was very intermittent. Sometimes the compressor would run, sometimes not. We swapped out the digital side car and then checked each of the cables to ensure that they were not broken in the middle. In the end we rewrote the Compressor Control loop to something much simpler.

See attachment Compressor.bmp for our code.

The compressor runs correctly now.

Good luck.