Whirlpool gold 02 side by side refrig model # G565HAXLS type # 26SSA took out faulty icemaker and unhooked water. The refrig makes loud popping noises and water comes from under refrig on floor. Cleaned out the freezer side last week as there was a large sheet of ice on bottom. One week later large sheet of ice on bottom. Can this be defrost mechanism problem? What parts do I need to fix?