Arrived on, 09-8-23 Matt Found evap coil was frozen solid. Open unit up and checked through system. Will need to thaw unit out and return on Monday morning to further diagnose. Job incomplete. Returned on, 09-11-23 Matt Checked operation of unit. Compressor kicks on soon after unit turns on. Checked relay, is good. Contacts inside look beat, would replace. The thermistor p1 is out of range. Need to replace, is causing to freeze up. The set point was at 0 which is the warmest setting. New thermistor set point is 6. Will return with parts and install. Job incomplete. Completed on, Unplugged unit to be able replace defective parts. Removed and replaced both the thermistor, and the valve insert thermistor. Didn’t install the compressor relay due to it being apart of the board. Unit is holding temp and properly working at this time. Job is complete.