Ok, when I push my mode button on the HVAC unit to select floor vents & defroster will my compressor run even if I have selected AC OFF via the ECON button? I've listened real close before when the HVAC is in this setting, with engine running but not moving and I can't really hear the compressor cycling in and out. I also can't detect the compressor going in and out when actually driving in this setting either, and my fuel economy doesen't seem to be affected at all. The only reason I wonder is because when it's raining outside my windows like to fog up pretty quickly. I find that this setting does a better job at slowing the return of the fog after I shut down the defroster. I prefer to turn the defroster on only long enough to clear the windows and then shut it back down to minimize the impact on the fuel economy. I also don't like running the defroster for too long since I have a radiator block currently installed in the car and I've been told that running the AC when airflow across the condenser has been restricted can lead to problems. Any thoughts?