5# suction, no place to check head. Cap tube slightly cold before entering cabinet. Pulled charge, cut (bullet)drier open, no problem. Picked up new cap tube and replaced. Suction 18# and working great. I left out parts of the service drill but I figure everybody knows what they are. More cap tubes in 4 yrs. than the past 28. Got to keep them condensers clean and sometimes that doesn't seem to help.