Upon arrival found that the compressor for system 1 had over heated and opened the internal safety. I inspected all electrical components and cooled down the compressor. Performed starry up and noticed that the system was going into a vacuum. After further testing and verifying with Jason we concluded to replace the TXV. Called Totaline, TXV info on pinned notes. Materials: 8 lbs R410A. TXV Recovery machine and tank. Extra nitrogen( Refrigerant circuit must be flushed properly). 1 tech 4 or more hours labor.