- Model Number
- 6-10 years
I have a GE dishwasher model GSM2100G02BB that sits under our sink. For several months I have noticed black scum on bottom and have (with increasing frequency) been cleaning it out, but it keeps coming back. I have removed the sump cover and sump cap ([parts 506 and 508) and have thoroughly cleaned both of them. It keeps coming back! We had a repairman come out and he said there is nothing wrong with the machine - just clean it once a month (unfortunately my husband was the one home and didn't push the issue). I'd have to clean it once a week at a minimum to keep the scum at bay. It is also causing a fould odor to come up through the sink. They must share pipes?