ac works great at times then doesn't work on 2004 Chevrolet Express 1500

the fan works all the time the air is cold when it does work seems to work in morning then when i shut it off and restart it dent work

Asked by for the 2004 Chevrolet Express 1500
ck for proper freon level to start with also have high side pressure tested to make sure you have no blockage
I agree with greg