Upon arrival customer stated they had another company come out on the 22nd said that the system was completely out of refrigerant that company added five pounds of refrigerant and within a couple days customer notice system freezing up again and not working properly during evaluation hooked up gauges found refrigerant levels to be slightly low when system is running the suction line pressure drops below 30 and system goes out on low pressure cut off performed leak search on indoor evaporator coil could not find a leak perform leak search on condenser coil could not found a leak but did find a leak on the vapor line right at the brick of the home along with lots of oil from the refrigerant leaking talked with customer about replacing line set and adding line set cover along with adding refrigerant customer agreed to replace line set only charged for line set replacement today as the outdoor data tag is completely faded unable to find out how much system holds will charge for refrigerant