At the end of the cycle, sometimes my ~2 year old Bosch SilencePlus dishwasher has unused Cascade liquid DW detergent that has ran down the inside of the door after the soap drawer has opened and has not been dissolved, like there was no water spraying around when the drawer opened. Or like the drawer opened at the end of the cycle and the detergent just ran down. This is a new phenomenon.
I thought maybe it was due to the way I had stacked dishes on the bottom rack near the door. But I know for a fact I have stood baking sheets across the bottom rack right in front of the door, and the water has still circulated enough to dissolve all of the soap and not leave any traces on the door. And there has been soap left unused when there are no large dishes obstructing the door. I'm thinking the drawer is not opening on time reliably.
I have checked the water is circulating by opening the door in the middle of the cycle and observing both arms moving around. I also checked the filter and the filter well, both of which were clean because I check and clean them regularly.
Any suggestions? Thanks of the help,