When it works correctly, the melted frost drains into a tube, which leads to a pan under the refrigerator. If you're seeing puddles of water in the bottom of your refrigerator, it's likely that the problem is up above in your freezer. Water will leak into the refrigerator when the drain system freezes up. Apparently leaking inside the fridge is usually less serious than deposits of water onto the kitchen floor. Usually this is a simple defrost drain tube issue with the refrigerator leaking water. In freezer-on-top refrigerators, blockage of this drain due to ice or food debris is a simple and fairly common problem. First disconnect power to the unit. To access it, you will probably need to disassemble the inside of the freezer compartment to remove plastic coverings to … Stagnant water at the base of the fridge can be a spot where bacteria will grow.

If the defrost drain tube gets blocked with a foreign object or if it freezes and ice clogs it, this can cause water to drip and get water under the crisper drawers in your refrigerator. However, the tube drain or the tube itself can become clogged, causing the water to back up and overflow. Water build up in the bottom of the fridge is not only annoying but it can be a health hazard as well. Under normal circumstances the defrosting system in your freezer will turn on a heater several times a day and melt off frost that accumulates on the evaporator coils.

Yes, water can collect in the bottom outside of the fridge, but if the water is collecting at the bottom inside the fridge, this might be due to a clogged drain or drain hose.

It seemed that the cause was the defrost drain.

Every time the unit goes into a defrost cycle, water will run down into the refrigerator, instead of down the drain. To clear the drain, remove everything in the freezer, so the back panel can be removed.

While conditions in a refrigerator will keep temperatures down and bacterial growth to a minimum, it does not prevent it completely. The result is standing water on your refrigerator shelves or beneath the produce compartments.