Looking into the basement storage area from the right side, you will see a carpeted panel immediately to your left. I think ours had 4 or 5 screws holding it in place. Toward the top of the panel we have a smaller tapered piece that is there to cover a drain pipe. That must be removed (2 screws) before the larger carpeted panel can be removed. Once that is done and removed, you will see your convertor.