2010 Grand Caravan only blows air on Recirculation setting...
As stated. When the "Recirculation" is activated air blows normally. When recirculation is turned off all of a sudden no air flow!
The fan motor is OK. The blend doors work just fine as they are OK when recirculation is on.
At first I just thought the cabin air filter was plugged and went to replace it... only to find that this model does not have a cabin air filter! (unless it is under the hood somewhere).
Normally I would not care so much EXCEPT! with the reciculation on you cannot blow air onto the windshield! It is getting into winter and we NEED to be able to keep the windshield clear!