No clue about dishwashers. We pre rinse the dished in the sink but still get gritty residue. The dishwasher came with the house and I can't find a manual on line. Model number is mdb5600aww it's a Maytag Quiet Series 100. where are these filters that may need cleaning? Any help would be appreciated.
You may have a defective "flapper valve". Look at a diagram/parts list. It is a $3 part and the installation is simple. The "flapper valve" serves as a check valve to prevent the drain water from flowing through the spray arms when the DW is emptying to the drain. The drain water has a lot of particulate matter from the dishes. Mine was stuck open with a long strip of hard soap scale. I probably could have reused the existing valve and just cleaned it. I believe the problem was caused by using the cheap DW detergent from Sams Club rather than the more expensive name brand. It had a tendency to build up a hard white crust that wouldn't dissolve. I replaced the flapper valve and cleaned the spray bars, and changed detergents. It cleans like new.
It took about two years to clean out all of the residue from the cheap DW detergent. The spray bar holes kept getting cloged with a white hard substance which was the cheap DW detergent that had built up in the DW piping. If you're having this problem try changing the DW detergent. The outcome was amaizing for me. I am using Cascade Complete and having no build-up problems. BK
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Hi,
Check your heating element..
Dishwasher
Problems The Heating Element not Working
http://www.fixya.com/support/r4589033-dishwasher_problems_heating_element_not
dishwasher leaving gritty residue in the dishwashe - 2_bing.gif Maintenance
http://www.fixya.com/support/r4319937-dishwasher_maintenance
heatman101
The problem is hard water leaving those spots. www.dishwasherfilter.com has a product to solve this problem once and for all. It filters the water going into your dishwasher and removes the hard minerals that leave those spots. It is very affordable and even has a money back guarantee. You will love the way your dishes look with this product.
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