Arrived at location on 12/20/21 - Checked over unit, found compressor not starting, checked windings, windings are good, start components broke apart when removing, installed 3in1, compressor not starting, determined that relay module has failed, will need to order new relay module and return to install. Returned on 1/12/22 - Installed new module and compressor start components. Started and found c47 error communication error. Needs hybrid relay that should have came with new module. Bypassed relay to check the rest of system and freezer came down to temp. Checked sensors and evap sensor is reading high will also need new sensors will order parts. Returned on 1/14/22 - Installed new hybrid relay and sensors and tested operation ok.