The moisture then runs down the walls of the dishwasher and into the drain. However ... is likely with the appliance itself. Check the vent in the dishwasher door to determine if it is open ...

To clean the rinse aid dispenser: Many dishwashers have a vent to let steam escape. Over time, built-up gunk can prevent the ...

When that line becomes obstructed or improperly vented, wastewater can flow back into the sink instead of draining away as intend ...