Complete 2 Systems. Worked on Us Goodman Split System. HO said he system was freezing up. Found pressures low. Air filter was dirty removed. Checked all vent to make sure they were blowing. Went to check evap coil to make sure it was clear. Made sure no collapsed flexes. Checked super heat. System was 1 lbs of R22 overcharged. Recovered the 1 lbs of R22. Got a 18 degree super heat. System is running great at this time.