A/C Gremlin

Hey Wassup w8ers

Started trying to get my A/C working since it's summer time and I would like to drive my Black on Black w8 without roasting too much.

Here's what i go so far:

1. A/C wasn't working
2. A/C was seized or spinning (i forget but it's the worst of the two meaning it's finished)
3. Air Dryer was full of water
4. Replaced with a used A/C & used Air Dryer
5. Recharged and was working
6. Week later (parked) blowing hot
7. Mechanic diagnosed first thought it was the High Pressure Valve
8. Replaced High Pressure Vale - still not fixed (but covered under extended warranty)
9. Next idea was to replace A/C compressor (sadly denied)
10. Bought a brand new OE A/C and air dryer
11. Installed but now doesn't turn on?
12. Current issue is a ground lead (quoting from bad memory from mechanic)
13. Roughly understood is it works under a manual switch but not automatically via climatronic

Any input guys and gals?

Update Alert:

1. A/C not working still
2. Replaced the Condenser to see if it's a mechanical part to no avail
3. Me & my mechanic are stupped
4. He's going to reach out to an engineer back he know from the factory floor (Germany I assume)
5. Only idea we came up with is comparing a working W8 to mine but not sure if their are any locally to NYC.

Correction:

1. Compressor bearing had failed and was squeaking

Clarification:

1. Where me and my mechanic stopped at was that he can jump and force the compressor on but it's just backing up pressure and the fan isn't turning on with the A/C on.

Might have jumped the high pressure valve. The result was cold air in the cabin but the methodology of it's execution.

I can gladly ask any questions and ideas you may bring to this topic

Bear with me I understand in theory what he has done but I wasn't actually there.

Oddly though my engine bay I on the hotter side, says within operating temperatures no problem (recent thermostat replacement) but ambient temperatures are off by about 10°F

Will ask in the morning