copeland condensing unit M#FJAL-B200-CFV-001
Russell Evap coil M#AE26-75B
Gas is 404a.
Box temp is 31 degrees, with a 102 degree ambient.
Expansion valve is new Sporlan BFSE-A-Z
I have cleaned both coils, pulled the charge and blew everything out with nitrogen, evacuated and recharged. Still can't nail this one. Any ideas??