Upon arrival tech was informed that evaporator coil was freezing up when in cooling mode but system was heating with no challenges. Inspected system and confirmed right after TXV the feeder lines going into coil would freeze as soon as it started cooling. Tested system in heat mode and found it to heat with no challenges. Tech suspects TXV at evaporator coil is causing restriction. Tech did also notice that compressor looks to have been changed already and pressure switch was cut out and soldered closed. Tech informed homeowner on all findings with system. Due to not being able to confirm warranty status yet office will need to quote once confirmed and call homeowner.