The spray arms constantly became blocked but even when I cleaned them out, the black bits persist! Cleaning out the main filter doesn't assist eithe r. I have torn down the whole area above the main pump assembly (But neithe r are filled with black material)
It often looks like black powder baked into the enamel during the drying cy cle but surely enough water is swilled around the unit while it is running, - and the dirty water drained out early in the cycle to clean out black p ieces from the water swilling around the unit during later water cycles?
Has anyone had this problem and identified what causes it?
Weak pump weak - so no water getting through to the top of the machine? (P ump sounds OK)
Blocked drain so the black pieces dont drain out with the water? (draining SEEMS to be OK and all water seems to drain out at the correct rate)
Blocked input or defective water level switch so not enough water gets into the machine to do much to the top shelf?
2 cups of white vinegar cycles didnt help either, and afresh never does