A/C Suddenly Blows Hot Air
 

Hi All.
The a/c went out rather suddenly on my 2009 Tribute. I actually noticed it blowing just fine the day before.
Just blows warm air now --- like only the fan is running.
Looked at as much as I know. Compressor doesn't engage and there doesn't seem to be any power to compressor. Fuses seem ok and the I swapped the a/c clutch relay with another. Didn't fix.
As far as the low pressure switch goes........ what wires do I jump to engage compressor? There are 3 of them.
That's about as much as I know to check. Am I missing anything?

When was the last time you did a freon recharge?

Have you tested the pressure in the system?

Would have checked the pressure, but the hole in the condenser made that kind of difficult.
Managed to put a patch, but I'll be changing the condenser soon I'm sure,.