How to diagnose ac issue

Hello, I'm so sorry, but it's so vague no one could possibly give you an answer. The first question I'd ask -- is the air conditioning system producing cold? Are the pipes after the compressor to the evaporator cold? If not, there's still a system issue under the hood. If the pipes are cold, then there's a temperature blend door issue in the car with the climate control system. If you have replaced the compressor, why was it replaced? What are the system refrigerant pressures? Does the condenser fan work? Have you checked the cycle switch? All initial questions. This isn't complicated, but you need a trained, skilled technician on the program. www.repairpal.com/repair-shops