We have a Bosch Exxcel 7, which is 4 years old. We ran a whites wash and everything has come out absolutely filthy. We regularly run a maintenance wash so was rather surprised, there was also muck on the inside of the door. I pulled the dispenser drawer out to check, it was fine, but when I looked inside where the drawer goes, above it it, I was shocked to see it covered in horrible black muck. I’ve managed to scrub somme of it away with a brush, but looking for help how to really get it clean and how this can happen.
I have photos, but don’y know how to upload them.