Nissan Repair: Air Condition, expansion valve, air condition

Question
1996 Maxima, the AC at times will not run cool or cold. The other day we were trying to get the AC to cool the car. We gave upand with the AC still on  opened the windows, the AC began to run cool. We tried all of the settings, "AUTO", "MANUAL", "RECIRCULATION ON AND OFF" etc. The evaporator, Expansion Valve and the Compressor have all been replaced.

Answer
Bill,

Check the pressures on the system to see if there is a blockage.  If the compressor is working and the system does not get cool there is probably a blockage in the system or you might have a blend door that is not working properly.  That is, there could be an issue with the door in the dash that controls the airflow.  Check these out and email me back.