yeh it has a sightglass, and all the wiring was tight, I heard from another tech from my company today he got sent to the call and he had the same thing i told him how i added refrig and it kicked on so he did and saw some bubbles in the sight glass so added 2 lbs, you were right about it being low and the head master i really apperciate the help from you guys does anyone have a link or anything about how i can get info on how head masters operate? that area is still a little grey for me. thanks again for all the help