NISSAN SENTRA AIR CONDITIONER BLOWS HOT

The Compressor Clutch Is Not Engaging. I Tried Adding Freon With Can Recharge. It Registered 140psi On The Can Digital Gage. Digital Gauge...

My A/c Blows Hot Or Outside Temperature Air, Heat And Defrost Work Fine, Car Idle Drops Slightly When A/c Button Is Pressed. Car Is Full...

All Of A Sudden The Ac Is Blowing Hot. Was Cold This Morning And Now Only Blows Hot. Belts Good, Compressor Kicks On. Help!