Air conditioner leaking. Air conditioning repair and maintenance tune up. Diagnose and perform annual AC maintenance service plan on Heil cooling system. Install blow out valve and check evaporator coils on 10 year old HVAC system. AC maintenance complete which will help lower cooling cost for this residential customer. R22 refrigerant will be phased out in January 2020. Recommend replacement with new Comfortmaker air conditioning system. Air conditioner is now ready for Texas weather.