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Why does my dishwasher leave a black residue in the dishwasher, and soap on the dishes

I have a kenmore dishwasher, model number 665-16539202 that does not rinse all the soap off the dishes, and leaves a black residue on the racks and door and sides of the dishwasher. Was wondering if the water is not heating up enough to disinfect, or if its not spraying to rinse things off correctly or what? Would really appreciate your feedback. thanks

Dishwashers , Kenmore , Appliances
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2 Answers from these members:
Manage My Life
I can see your concern about why there is black residue in your Kenmore Dishwasher and why aren't your dishes getting rinsed completely. I found a question in Manage My Life under the Answers button that was similar to the one you asked me. I think this information will be very helpful to you, while your waiting on an expert answer. I attached the link below, I hope this helps!!!!!
by Manage My Life
August 9th, 2010
Answered in 1 hours
0 votes
Fred M
You seem to have two separate problems. The soap on the dishes not being rinsed off and the black residue left behind as well.

The soap being left behind is most likely a circulation or drain problem. The water should be up to and near the element. Run a rinse only cycle to check the water level. After if runs for a few minutes check the level again to make sure it is the same level. If the drain is not routed correctly then the water might siphon out of the dishwasher while it is running.

Make sure there is not an excessive amount of suds in the washer. Extreme sudsy water can prevent a complete drain out.

The black residue might be a little more difficult to figure out.

I suspect the back residue is mildew and if this is the case then most likely the dishwasher water heating system is not working.

One way to check this is at the end of a wash cycle when the door is open a lot of steam should exit when the door is open. No steam would indicate a water heat problem.

No water heat would indicate a problem with the water heating system. The problem might be with the timer, hi-limit thermostat or element.

I hope this information is helpful to you but I will most likely need a few more details to give you a more specific answer.
by Fred M Earned 109,681 community points in Kenmore
August 10th, 2010
Answered in 22 hours
0 votes
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