Mark for Model Number MDB7851AWS Dish's and cups are gritty, also makes lots of noise would this be caused by a dirty filter ? It's not food particles just gritty like it's not rinsing all the way.
Answer Hello Mark, While this can be a foreign material that has been introduced into the unit, it can also be hard water deposits and/or an oversoap issue. I would start by verifying the normal operation of the heating circuit in the unit. This can cause the detergent not to dissolve properly. Items in the heating circuit to check are the high limit thermostat WP99002633, the heating element W10283681, and the control WPW10218838. Read More... Answered by AppliancePartsPros.com | Monday, January 18, 2016