...so i was doing some work on a central unit and the guy had a big wall AC sitting in the front yard.
i said "want me to get rid of that for you?"
he said "go ahead , it doesn't work"
took it home , 2.3 ton ,
i don't see a date but it looks new,
run it a few times, sure as hell never got cold.
everything mechanical was working, had to be a freon leak.
i picked a spot near the top and cut into the system , maybe some freon came out but i thought at the time it was bone dry.
brazed in a valve , pulled a vacuum.
i left it under vacuum for at least 2 days.
looked at my guages, i didn't notice any drop, thought that was odd.
due to the cigar smell i had to use coil cleaner about 4 times, each time i tried to look for leaks with soap, found nothing.
maybe the bottom of the evap coil had oil on it, but it could have been water discoloration.
i saturated the bottom of noth coils with soap trying to find the leak
i charged it up to full and used a sniffer, found nothing.
i've had it for about 3.5 years.
just fired it up, 23+ degree split.
was the leak on the main line and it covered it up when i brazed the valve in?
did LG put enough freon in it?