Why Dishwashers Leak
Dishwashers have multiple potential leak points. The door gasket (door seal) compresses over time and allows water to spray past the door. The door latch may fail to hold the door tightly. The water inlet valve at the bottom of the unit can crack or stick open. The drain hose connection can loosen. Overfilling from a faulty float switch allows water to flow over the pan. Each failure mode produces a different pattern of water damage.
Signs of a Dishwasher Leak
- Water pooling on the kitchen floor in front of or under the dishwasher
- Soft, spongy, or discolored flooring in front of the dishwasher
- Swollen or deteriorating cabinet base under the sink or adjacent to the dishwasher
- Musty odor under the kitchen counter
- Visible water staining under the dishwasher when pulled out
What to Do After a Dishwasher Leak
Turn off the dishwasher and the water supply valve under the sink. Pull the dishwasher out if possible to inspect underneath. Thoroughly dry the area and inspect the subfloor and cabinet base for moisture damage. Check with a moisture meter if available. Have a plumber or appliance technician inspect and repair the dishwasher before using it again. If the cabinet base or subfloor is saturated, call a restoration company.
Find Local Help
WaterDamageSource is an educational resource. Always consult a licensed professional for guidance specific to your situation.