Symptoms
- Puddle of water inside the freezer
- Water pooling on the floor in front of the fridge
- Ice buildup at the bottom of the freezer
- Water stains under the unit
Likely causes
- CommonIce maker overfilling due to a stuck fill valveA valve that doesn't shut off fully lets too much water into the tray, which overflows.
- CommonClogged defrost drain causing water backupDefrost water is supposed to drain out the back; a clogged drain sends it into the freezer instead.
- PossibleLoose or cracked water line fittingConnections at the back of the fridge or under the sink can loosen or crack over time.
- PossibleIce maker or line not levelIf the fridge isn't level, water can overflow the fill cup before it reaches the tray.
- Less commonCracked ice maker tray or reservoirPhysical damage to the tray lets water escape instead of freezing in place.
What to do
- Unplug the fridge and pull it out carefully to check all water line connections for looseness or cracks.
- Tighten any loose compression fittings by hand plus a quarter turn with a wrench; don't overtighten.
- Check that the fridge is level side to side and front to back using a level.
- Locate the defrost drain (usually at the back of the freezer compartment) and clear any ice or debris blocking it with warm water.
- Watch a fill cycle if possible to see if the tray overflows, which points to a bad inlet valve.
- Dry up existing water and monitor for a day to see if the leak recurs after these fixes.
Tools and parts
- Adjustable wrench
- Level
- Towels
- Turkey baster or warm water
Water inlet valveSearch: “refrigerator ice maker water inlet valve”
Compression fitting kitSearch: “ice maker water line fitting kit”
When to call a pro
If tightening connections and clearing the drain doesn't stop the leak, a technician should test the water inlet valve and check for a cracked tray.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.