Finding water leaking out from underneath the bottom of your residential refrigerator is a common plumbing and drainage issue typically caused by a blocked defrost drain hole or a misaligned evaporation pan. When the internal defrost drain tube becomes clogged with algae slime, food debris, or ice, melted water from auto-defrost cycles cannot reach the exterior drain pan, causing water to pool inside the freezer and overflow onto your kitchen floor. Alternatively, the plastic evaporation pan sitting above the compressor may have cracked or shifted out of place. You can troubleshoot leaks easily by inspecting the floor beneath the unit. You can verify that your corrective action is successful when clearing the frozen drain hole with warm water and a pipe cleaner stops all bottom water leaks permanently.
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