Air conditioner not cooling. Air conditioning repair and maintenance tune up. Diagnose and perform annual AC maintenance service plan on Rheem cooling system. Clear drain lines and check evaporator coils on 5 year old HVAC system. AC maintenance complete which will help lower cooling cost for this residential customer. R22 refrigerant is no longer available in the United States. Recommend replacement with new Comfortmaker air conditioning system. Air conditioner is now ready for March weather.