My 2012 EX heating system is giving me fits.The heater modes all seem to be functioning properly but the air is hardly blowing thru the vents. The blower motor is working correctly as I can hear the speeds increasing and the air is moving, although slightly thru the proper vents. The same thing is happening with the AC. Is there one particular blend door that is not functioning correctly that would affect all the other vents. I would think it would have to be near the blower motor to affect the heater vents and the defroster.