While I was driving the a/c just stop blowing cold air. Felt like air from outsi on 2005 Lincoln Aviator

It felt the air was coming from outside.

Asked by for the 2005 Lincoln Aviator
there are several things this could be compressor,freon, hi and low switches and fresh air door broken. seek a diag.
1 more answer , 1 more comment
I have a audi 05 and the a/c is only blowing warm air out, the compressior is not swithching on.
POSS LOW ON FREON OR HIGH OR LOW PRESSURE SWITCHES ARE INDICATING OTHER ISSUES. MAYBE ALSO A PWR SUPPLY ISSUE