I had a strange experience today. I installed a new Goodman R-22 condensor. I got everything working, charged by weight, and had the proper superheat for this particular A/C. I went to draw down my guages to go home and the low side would not draw down the guages. I have never had that happen.
I emptied the guages, hooked them back up and got the proper readings. I cut off the high side tried to draw them down again and the low side would not draw them down.
Does Goodman have some sort of safety for this?