So, I push the recirculate button and the A/C comes on, but yet I have not pushed the A/C button and the little light is not on the snowflake button, but the light is on the recirculate button. I live in a newly developing area where there is tons of construction going on so dust is everywhere, and a million diesel trucks driving on the roads. I am unable to block out these odors from entering my rig because I can't use the recirculate feature!