Dispatched for a/c tune-up. At arrival I checked the refrigerant pressure and the airflow of the system. My refrigerant pressures were indicating that it was low and the compressor was overworking. And then checked the condenser coil and it had a really bad pileup of debris. I removed all side panels and did extensive cleaning on the outdoor coil after the cleaning. I rechecked pressures and indicates the system is low on refrigerant due to the age of the system. I recommend replacing the system with a two stage AC. Thank you for being a loyal member of LBA services.