Cletis how much freon did you put in? Could have been that it needed a little more. If I were you I would put a drier on that has a site guage. It's alot easier to charge and monitor the system with the site glass, especialy with an expansion valve. There is a good chance with your orgional power/pressure-up the system didnot have a chance to acheve the operating range of the exp- valve. The system should be at operating temp along with about 2500 to 3000 RPM for proper pressures to work. I also will put the freon can into hot water to raise the pressuse in the can to help load the system.
