Performed AC safety inspection compressor is very loud due to age and wear, contactor is very worn and pressures indicate low on refrigerant. Temperature split is high due to low refrigerant and low fan speed due to diagnosis on furnace from previous visit. Was not able to finish clean and tune due to issues found with AC, average life of these units are 14 years, this unit is 23+ years, due to age, condition, and cost to repair second opinion is recommended. Second opinion scheduled for tomorrow at 830 with Dan F