Luis 1-12-26 return visit to troubleshoot unit. Found unit with error code e7. I called tech support for troubleshooting, based on the information, from inverter board, discharge sensor should be replaced not reading correctly. We need to replace sensor warranty, customer also has labor warranty, we will need to recover refrigerant and measure how much we take out, and add factory charge once job is completed. No charge 1/15/26 Barry Recovered 5# 13oz R410A; Factory charge is 7# 9oz (121oz) Pressure tested system and it help 360 psi for 40 minutes. Soap bubble leak check all joints. No leaks found. Also no leak detection dye anywhere. Replaced compressor discharge temperature sensor. Triple evacuated system to standards. Less than 500 microns. Charged system factory charge. 121 oz R410A. Started system. Gets stuck at 31 Hz because transducer has failed. Control thinks it’s 455 psi liquid pressure when it is 308 psi measured and therefore prevents compressor from modulating up. Con