trippint0, when i started the sytem up it was running in a vacuum..i added a couple oz to get it to 10 psi the head psi was a little less than 100 at that time.
im going back saturday to pump it up to look for the leak as you suggested..ive done this once before, so i pulled a vacuum and recharged it so i knew what was in it..4 days later its running in a vacuum just like the 1st time i seen it..

this box is built into the building..........the condensor is in a bar and clean. the box is in good condition..
if the cap tube was plugged why did the system come down in a hour or less??