Hyundai Repair: 1999 hyundai accent, hyundai accent, pressure switch

Question
if the a/c compressor wont take in 134a refrigerant does that i mean need a new compressor

Answer
Hi, Glipford.  Unfortunately, this doesn't tell us anything about the compressor.  Your air conditioning system may already be overcharged or you may be attempting to charge it improperly.  

In addition, there are many issues other than low refrigerant that can cause air conditioning to not operate: engine overheating, condensor fan not working, faulty evaporator temperature sensor, faulty pressure switch, and faulty relay to name a few.  

It'd be my recommendation that you have your vehicle checked by a shop competent in air conditioning work.