airconditioning please help

[mstaat]

hey guys i have a quick question i have not had airconditioning for a while and it is really bugging me. i went to have it looked at seeing as im not an ac pro and the ac works fine the system is charged and the ac pipes are freezing leading all the way up to the fire wall. the ac is working its just blowing hot air im convinced that it is one door flaps or switches in the heater box isnt turning which it leaves the hot air mixed with the cold, i was woundering if u guys new how to check it or remove the box in general any answers are appericaited

[evildky]

freezing pipes are generally a sign of low refrigerent, you might want to take ti to a shop that can measure the pressures on both sides

[Perrenial Badass]

Not sure how it works on the Z32s, but on the z31s a vacuum leak under the dash or in the lines for the AC will allow the heater core to stay on. I suppose that it could be one of the vacuum actuators for the doors dry rotted out, but I'd put my money on the vacuum first.