In this video, I conduct a leak search on a one door true cooler (model#: tssu-27-8). I first used a Bacharach H10 leak detector to find the rough area of the refrigerant leak and then I took out the whole evaporator coil for the cabinet itself. After taking out the evaporator I then pressurized the closed evaporator with nitrogen and then sunk the whole evaporator into a tub of water to see where the leak is. Luckily the leak was in a place that can be simply brazed shut. So thats what I did and after I re-pressurized the evaporator and it held pressure!