I can't seem to find this one in a forum search, my HVAC controls will not shift the air flow, but only if the car has been left out in very rainy conditions. If the weather has been dry or the car is kept in a garage, even just at night, I have no problems. I had been keeping it in the garage at night a lot up until about 2 months ago. The weather has been pretty dry until Katrina blew through here yesterday with about 5" of rain and 30-40 MPH winds. I had this problem back about 5 years ago, but I haven't had it lately until yesterday. Anyone have any ideas?
