Once every few days, a puddle forms in front of my Kitchenaid KSR series refrigerator. Kitchenaid support has been completely useless in resolving this issue, other than to say reports of this condition are "rare".
It appears to be the periodic defrost. The tray below the fridge remains dry. Ice builds up on the freezer floor by layer until the most recent defrost operation flows over onto the floor. Here with green food coloring for the picture:
I have a second fridge in a rental unit, where the water instead ends up on the top shelf of the refrigerator.
How can I clean what appears to be blockages in the drain lines leading from freezer to the under fridge drying tray? What causes these tubes to clog?