[360]

You may already know the answer to this, but a very quick and simple sanity check is to dump enough air to start the pump. When it finishes it’s cycle and the well pump switch turns it off, you should hear a whoosh of exhaling air from the unloader valve.

I do not hear a whoosh when compressor hits cut out pressure.  

I believe from my reading on the manufacturer of that valve’s site it can be configured any number of ways.  Didn’t have much luck in finding a manual, but I’ll look again tomorrow.