update. pressure tested the bad unit's lines. found a very very tiny leak. tightened fitting and leak is gone. I pressure tested the lines at 450psi and it didnt move for the first three hours. I left it overnight and it had dropped by about 1 psi. should I be concerned about this?
also, I spent 5 evenings studying for and passing my 608 type 2, and then when I went to order r410a, they didn't even ask for the cert. WTH ???!!!
also, I spent 5 evenings studying for and passing my 608 type 2, and then when I went to order r410a, they didn't even ask for the cert. WTH ???!!!