The fan in my wife's '19 goes wild. We take the system off 'Full Auto' but it always says 'Auto' on the display. The fan speed keeps changing all the time. I just want cold air blowing at a low speed, but that is not an option. It seems to get the fan to blow slowly you have to turn the temp way up. I thought it might work to just turn the temp to "Lo" and turn the fan down, but no dice.