My compressor dome started leaking refrigerant. It was rust from moisture under the metal information tag on top of the compressor. I ground down all the rust, then heli-arced a 4"x4"x1/8 SS plate to the dome. Replace the drier, added 4oz. oil, evacuated and charged the unit. That was 3 years ago. At the plant these nomenclature plates are removed to prevent this type of corrision. We also have a real problem with corrision under insulation.
[Edited by oroy54 on 03-09-2005 at 12:15 PM]