Hi, So I go to this job put in almost a year ago, Spyder with vav app and the guy is confussed, says a couple boxes started behaving funny. The setpoint jumps 5deg when he puts it in. Not using WM spt. So I look, in the program find that the Setpoint Calculater has the heating higher than the cooling? Odd but just replace it and ok it works now. Check and a couple others same way. Found a couple other with a 72degF spt a 2deg ramp but spt change of 4-6deg. Tried calling Honeywell world famous nontech support but as of now still no response. I took out the calc and just used a plus minus for spt's. Wonder why HW can't make a product that is stable, I have others that will work a while then act strange, binaries that will read 0 or 255 instead of off - on etc. EERRRRRRRRRR.