Upon arrival set system to cool. System ran for 30 seconds then turned off. Checked all electrical. Electrical is fine. Checked pressures. System is very low on refrigerant and making system cut out on low pressure. Performed electronic leak test and found leak on evaporator coil. Homeowner approved ordering new coil and refrigerant to fill system after coil is replaced. Homeowner opted to not charge up system today. Coil will be deliver to shop to tomorrow. Office will schedule follow up to install new coil at earliest appointment available. System is operational but still not cooling