I have a whirlpool (aka amana) dishwasher I got from home depot a year or so ago, Model # WDF510PAYW.
A month or so ago I cleaned the upper and lower filters for the first time. They were full of soft black gunk. (Next time I will read the manual.)
Since then I am getting small pieces (1/8" to 1/4" in diameter, but thin) of black gunk on my otherwise clean dishes.
I had hoped that this would be temporary and the dishwasher would clean itself over time. That has not happened.
In addition to black pieces on the dishes, there is a black film on much of the inside of the dishwasher. (See photos.) I still get some soft black gunk in the lower filter and some grey film in the upper filter, which I clean often.
I tried running it through empty with some vinegar. That did not help.
Any ideas on what I should try now?
PS What is the round, hat shaped plastic piece in the lower right hand corner of the first photo? It has some black gunk under it but I cannot get it off to clean it.