Cadillac Repair: A/C 2005 Cadillac Escalade, cadillac escalade, c control

Question
I have been having issues with my front A/C.  It stopped blowing air.  No speed what so ever.  But when I got over 35 or 40 and especially on the freeway it would blow cold air.  I took it to my neighborhood Mechanic who diagnosed it as the Blower Motor.  We replaced it.  I left the shop, ran an errand and it was the exact same thing.  No air, when the car is idle at a stop light or driving under 35 miles per hour.  The Mechanic said he 'thinks' it is the A/C control panel now and that it probably burned out the Blower Motor.  He asked if the fan stays on after I turn the igintion off and it does.  He said that it is the A/C Control Panel and not to use the air until we replace the control panel.  I would love feedback or opinions on my A/C issues before I have this next reapir done.

Answer
Whoever is trying to fix your vehicle is GUESSING at your expense.

Since I have retired in 2000, I am not that familiar with your 2005 vehicle, But I seriously doubt that it is the control head. More likely to be the A/C-Heater PROGRAMMER, But you neeed to perform tests to determine what is at fault.