You fixed it! When I check an oil fail, I list Suction, Discharge, Net oil pressure, superheat at compressor, oil level in each compressor, oil level in oil reservoir (if one), oil differential from oil reservoir to oil level controls (if any). Oil separator line is feeding, pick up screen is clean. oil level control screen is clean. Wires are tight, contactor is good Amp draw. no logging in heat reclaim, refrigerant level, what other work has been done lately. A always do something like change the contactor, then I go home and hope and perhaps got lucky. Good luck.