Clogged or Freezing Defrost Drain
If the refrigerator is leaking water it's possible that the refrigerator has a clogged or freezing defrost drain. If the defrost drain freezes the defrost water will overflow the drain and drip down to the bottom of the compartment, If enough water accumulates in the bottom it can run out onto the floor. Thaw any ice that is clogging the drain. Make sure the drain is clear by flushing it with a turkey baster and HOT water.
Water Tank Assembly
If the refrigerator is leaking water the water tank assembly may have sprung a leak. Check the water tank assembly while it's still in the refrigerator to see if the leak can be found. Keep in mind that the tank is not under pressure, it only holds water at a very low pressure and so the leak might be very small and hard to find. The tank can sometimes be made up of coiled tubing and is usually located behind the crisper drawers, behind a panel in the refrigerator section. If a leak is discovered, replace it. The plastic they use for the tank doesn't accept glue very well.
Water Inlet Valve
If the refrigerator is leaking water the water valve may be cracked or have a loose fitting. The water inlet valve requires a minimum of 20 psi to shut off properly. If the water inlet valve does not shut off properly and the water pressure is good, replace the water inlet valve.
Water Filter Housing
If the refrigerator is leaking water the water filter housing might be cracked or broken. Inspect the housing thoroughly and replace it if any cracks are found.
Water Filter Head
If the refrigerator is leaking water the water filter head might be cracked or the seal might be torn or missing. Check the water filter housing carefully for any damage or defects.
If the refrigerator is leaking water the drain pan might be cracked. All self-defrosting refrigerators have a drain pan. The drain pan is underneath the refrigerator or near the compressor. When the refrigerator goes into the defrost cycle the frost and ice that is melted off of the evaporator coils flows down a small tube and into the drain pan below. The condenser fan blows warm air from the condenser coils across the top of the drain pan to evaporate the water quickly and so the drain pan never has to be emptied. However, if it cracks, the water from the defrost cycle will spill out of the pan onto the floor.
If the refrigerator is leaking water the water filter might not be installed correctly. Remove and reinstall the filter to be sure it's seated properly.
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