Got a call today on a climate master water source heat pump. 20 feet in the air hanging off the ceiling. Dripping oil. between the housing and secondary pan at least half a gallon of oil! oil all over. one compressor running and the other off. Shut the unit down and hook up guages. 0/0/ for the off line unit. Copeland scroll was replaced (not by me) a couple months ago. I mop up all the oil and spray piping with solvent to degrease and get it all nice and clean. put N2 on it and pump to 200 psi and hose everything down with big blue. not a bubble. within 15 minutes pressure down to 135. hmmmmmmm. too noisey to hear anything. tomorrow I will check evap but dont think it came from evap because it would have drained down and no oil at all above comp level. I checked the oil port on the running unit and it has oil so the oil had to come from off line unit. I checked to make sure it hadn't blown pins and it hadn't. We checked this unit a week or so and no oil so whatever happened should be obvious...... LOL or not.
Both comps have been changed and all the brazing is pretty sad.