What is the 38AE044570? 40 ton condensing unit? Would that have a Carlyle semi-hermetic compressor(sealed-motor)? Not worth the expense retro-fitting another style compressor in there. Go back with the OEM compressor, identify and repair what took it out.
Ok, so the compressors are taking a drink and wreaking havoc inside. More than likely you are having a low load situation and the condensing unit cannot shed enough capacity.
How many stages is the condensing unit/evaporator set up for???
How many circuits, TXV's per circuit, etc. What is...