Posted 8/1/2024 10:09 (#10835030 - in reply to #10834968) Subject: RE: Adding oil to AC system
SW OH
You don't need to add any oil if none was lost. If you don't know for certain if or how much oil was lost, you need to do a complete flush and add required amount of new oil.
Since it didn't work when you acquired it you might as well start with a new compressor and dryer, then check for leaks elsewhere. You'll spend less money in the long run.