Following the experience and instructions from many videos and APP commentors, I removed all shelves to access the evaporator cover at the inside rear of the refrigerator. Using caution not to damage the insulation or plastic clips, remove the cover and disconnect the wiring harness. I used needle nose pliers to remove the existing (poorly designed) clip at the bottom of the evaporator heater. The longest part of the job involved the clearing of the drain prior to installing the new, longer, better conducting clip. I used standard aquarium air tubing, snaking it down the drain (which goes to the right) and alternating adding and removing hot water with a turkey baster. Once the icy drain clog was melted, I installed the new clip so that the tabs on the ends wrapped snugly around the heater tube so that more heat is now transferred to the condensation drain to prevent a recurrence of this icing which created the interior flooding.