2000 e320

I am out of town
my AC stopped blowing cold
comp clutch is engaging
I found the instructions for diagnostics but the problem is the left side of my display it is not readable,
I did have error codes but I cleared them and they do NOT come back.
I could see error codes but could not make them out
I was also able to operate the flappers and blower in the diagnostics but not sure all passed. air did move from dash vents to floor vents.
air temp out of both side s is the same temp

I am thinking it has something to do with the door that switches from heater core to evap but not sure what else I can do.