95 Eagle Vision ATC err code 36
 

Recently my a/c has been acting strangely. When I 1st start the car a/c and heat panel may or may not display anything, but blower is on the windshield. Eventually the display turns on and sometimes I get hot air even if the A/C and panel button indicators are on. If I keep pressing the panel button it will respond after a number of tries, but it may revert back to windshield blowing cool air.

I went through the diag and received an error code of 36 only. I tried recalibrating procedure, but nothing changed.

I can purchase a ATC head for $70, but they can't guarantee that will correct the air distribution problem.

Any suggestions??