Air conditioning issues

Sounds like a blockage somewhere. Did he replace the dryer?

 

Orifice tube?

 

if it has a big aluminum filter it probly has an orifice tube. if it has a black steel filter it probly does not have the tube. the tube should be changed anytime the system is open cause they plug up easily. if the compressor self destructed its better to replace the condenser too.

 

It's essentially like a little inline filter in one of the freon lines. Can be hard to find. Google it for your specific vehicle and you might find a pic or info.

 

Prostars are computer controlled, including the HVAC. There is a good chance the body controller detected either too high or too low of pressure and now has a latched code that will need Diamond Logic Builder software to clear to allow it to run again. Or, if the body controller is still detecting other faults that are active related to the ac, it will not power up the compressor. Power to the compressor comes from the body controller. Do not wire or power direct.