My 2010 RAV4 heater has stopped directing air to the various vent outlets. I have removed the 3-dial control panel to inspect the air vent control knob and connected wire and this looks good. I can hear “flaps” moving as i move the control knob but this doesn’t direct air to the various vents. Fan control is working and increases in intensity with each higher setting but air seems to be blowing in behind the dash? Has anyone experienced this issue and what is the remedy?