Just got a new Honeywell FocusPro 5000 thermostat. The current inside temp on the thermostat is now 78 but my professional register thermometer is reading 81.5 sitting right next to it. Is the temp reading on the stat an average reading or is it supposed to be accurate at any given point in time? The cool setting is set at 78. The system does cycle on and off, on at 81.5 and off at 78.1 but the inside temp on the stat never changes..just stays at 78. I am beginning to think that the inside temp on the stat is just a lower limit and not the actual temp. Any thoughts?