On my side by side it is in the bottom of the freezer. Mine got frozen over, caused it to overwork, freeze up the compressor and foul everything up. I had to empty everything out of my freezer (luckily I had my garage fridge) and let it defrost. Than I poured hot water down the drain line with bleach to clean the line out. Under the fridge there was a pan which collects water from that drain line and any condensation off the compressor and condenser. Make sure that pan is clear, and the drain line is attached properly with no kinks, bends, or contact which could block the end.