Kenmore 15939 Built-in Dishwasher "mold washing machine soap dispenser" Questions

...mold except it has a little bit of texture. It slowly builds up until it is so bad the dishwasher will run continuously for hours. We have thoroughly cleaned out the filters, the dishwasher itself ...

...soap residue!) and clean away. Be sure to rinse well. If you don't you may have suds coming out from around the door the next time you use the dishwasher! Problem 2: Something black "growing" by the ...