The part(s) or condition(s) listed below for the symptom Refrigerator leaking water are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
If the defrost drain is frozen, the water will overflow the drain trough and drip down to the bottom of the compartment. This water can eventually leak onto the floor. Check the defrost drain to determine if it is clogged or frozen. If the defrost drain is frozen, thaw the ice. In addition, flush the drain with hot water to ensure that it is clear of debris.
Inspect the water tank assembly for any leaks. Be aware that the leak may be very small and hard to find. If you discover a leak, replace the water tank. Do not attempt to repair the water tank—glue will not stick properly to the plastic of the tank.
The water inlet valve opens to supply water to the dispenser and icemaker. If the water inlet valve is cracked or has a loose fitting, water will leak from the valve. Inspect the water inlet valve for cracks, and make sure that it is tightly secured to the water supply line.
Inspect the water filter housing for cracks. If you discover any cracks in the water filter housing, replace the housing.
The water filter head might be cracked, or the seal may be torn or missing. Inspect the water filter housing for cracks. If you discover any cracks in the water filter housing, replace it.
Self-defrosting refrigerators are equipped with a drain pan. The drain pan collects the water that melts from the evaporator coils. In order to evaporate the water in the drain pan, the condenser fan blows warm air from the condenser coils across the top of the drain pan. Because the condenser fan evaporates the water from the drain pan, the drain pan does not have to be emptied. However, if the drain pan is cracked, it will leak water as the defrost cycle is running. Inspect the drain pan for cracks. If the drain pan is cracked, replace it.
The water filter might be not fitted properly on the filter housing. If the water filter is not fitted properly, water may leak from the filter. Remove and reinstall the filter to ensure that it is fitted properly.