Thanks for your advice. I went back to the Service Center armed with your advice. As you said, Robert, the process is long and tedious. Carl spent the day with soap, water and spay can. He found a series of small leaks and repaired/fixed them. Retested the lines and they all held. Another test revealed that the leak was probably in the compressor or tank itself. Since it was going to take 2 weeks to get the part, we put things back together and headed south. Since the air is being lost from the tank/compressor and the lines are holding and the display is showing level status. I have disconnected the fuse associated with the compressor, and cycling problem is terminated--- but not fixed.