If a dishwasher floods the kitchen, stop the cycle, turn off the water valve that feeds the dishwasher, and keep away from any wet outlets. Then remove the water and figure out whether the cause is a clog, a leak, or a problem inside the machine.
Steps to Take Right Away
- Press cancel or turn off the dishwasher
- Close the supply valve, usually under the kitchen sink
- Use the house shut-off if the dishwasher valve is missing or stuck
- Do not touch outlets or cords while standing in water
- Use towels and a wet vacuum to remove water
- Move rugs and anything stored in lower cabinets
Why Dishwashers Overflow
Dishwashers flood for a few main reasons:
- A clogged drain: if the sink or disposal is clogged, the dishwasher has nowhere to drain.
- A loose or cracked drain hose: water can leak under the cabinet during draining.
- A leaking supply line: the small water line can crack or loosen.
- Too much soap: using regular dish soap instead of dishwasher detergent can create suds that spill out.
- A worn door seal: water may escape around the door.
After the Water Is Gone
Look under the sink and behind the dishwasher kick plate for drips. Check that the sink drains normally. Leave cabinet doors open and run fans to dry the area. Check the floor and the ceiling below for water damage over the next few days.
Some problems inside the dishwasher are appliance issues, such as a failed pump or control board. Clogs, drain hoses, and supply lines are plumbing problems. Knowing the difference helps you call the right person and avoid paying for two visits.
If water is spreading and will not stop, having a plumber stop the flooding can limit the damage. For a kitchen drain that keeps backing up into the dishwasher, you can set up a drain check at home by calling (833) 603-1840.