air conditioner not function and warm...

Thanks for reply.. Actualy. . I alredy removed the wire loop frm condensor. . I alredy checked the pressure at compressor.. Pressure ok. . ( chnge new compressor) so i checked again.. So i decide to loop one wire joint from expension vlv socket (-) to compressor (-)wire and its function.. but if more cold its cut-off its self and on again .. headache to think about it.. Hmm pls help me.. Better if i have circuit diagram for ac system but i dont have