Cool Ice Forming Under Deli Drawer References. I researched this ice build up and most feel that it's a plugged defrost drain tube in the fridge section. I found a large block of ice build up under the bottom drawer in the frig.

Next, remove the deli drawer and check for any obstructions in the waterline. Posted 3 days ago in seattle, wa. First, make sure that the ice maker is turned off.