Question about Amana 24 in. ADB2200AW Built-In Dishwasher

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Amena soft sound II

My Amana dishwasher leaves a black residue on all dishes. The residue does not adhere to the dishes as much as detergent or food would, and is fairly easy to rinse off in the sink. It originally looks like coffee grounds at the bottom of a cup, but upon closer inspection it appears to be small particles of black rubber or plastic.
When I put clean glasses in and just run them through the rinse cycle, the problem is the same. I have repeated this several times with clean glasses and the amount of black residue is the same each time.
This dishwasher is 2 years old and I believe the problem has always existed and is getting worse. My guess is that something is slowly breaking apart, but I don't know what it might be...

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: black residue

The black residue is possibly rust from iron pipes. I have an old house with iron pipes and when the washer opened the valve that lets water in from the supply hose it did so suddenly and created a "water hammer" that shook the pipe. The hose supplied with the washer became clogged with this black rust material and needed to be replaced. I replaced it with a different type that did not have a spill proof valve and added an "air cushion". An air cushion is a short 6" vertical pipe teed before the valve. It fills with air bubbles and cushions the shock of that valve turning on thus stopping the pipes from shaking and the loosing of interior pipe corrosion. If the black residue is hard and gritty it is rust not rubber. Wipe the inside of the washer clean of it. Disconnect the supply line and fill a five gallon bucket with it. If rust is coming from the inlet you will see it in the bucket. If you don't have a shut off valve at the washer you'll want to put one on now as turning off the main releases quite a lot of material from the pipes as they drain.

Posted on Mar 08, 2010

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';';

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