Don’t know what else to try.
I’ve done everything in this thread. Air still blows through defrost. Here’s a summary.
Air blows cool just through defrost so system charge is good and compressor is working.
Checked all vacuum lines, under hood and under dash. Also canister. No leaks.
Capped off the line going to the hubs.
Tried Capoing off solenoid but no change.
Blender works.
Air would blow a little through dash vents at first, now just completely from defrost.
What else could be causing this problem?
electrical?
if the relay was bad wouldn’t that cause the compressor not to work?
Can it be the AC controls?

Have you tested for vacuum at the selector switch?

Forgive my ignorance but selector switch?

I found the problem. Looks like it’s the Vacuum Solenoid. Funny thing is I had already replaced it.
Crappy part I guess. Anyways. Gonna bypass the solenoid for now.

I had the same issue. It’s was a bad EATC control head. Replaced and worked fine.

The circuit board thing with the 4 looking tubes inside the ETAC connected to the main ETAC circuit board is the culprit. I had two ETAC control heads and just started troubleshooting and found that that was the issue.
Or just find a new one.