Dishwasher Overflow Into Sink

Use a home drain cleaner.

Dishwasher overflow into sink.

When water backs up and overflows into an area where it shouldn t be a clog is usually the culprit. To fix a dishwasher overflowing into a sink you simply need to find this clog and remove it. When water backs up into your sink while the dishwasher runs there s a clog somewhere. These clogs typically occur in four places.

Video of the day. Turn on the garbage disposal. There are several areas between the sink and the dishwasher where the clog could occur so start with some of the easier fixes. One such reason for your dishwasher backing up into your sink may be that you have a clog in your garbage disposal.

This helps you determine if there are food morsels blocking the water going from your dishwasher to the sink.