Our seven year old Bosch dishwasher bottom spray-arm does not seem to revolve. The upper arm and top spray head work and the toprack crockery is washed properly but those in the lower rack are still dirty. I suspect that there is some blockage either in or in the supply to the bottom spray arm. How do I remove it to check?

Bryan Scott, July 2009

it should pull of with a bit of a tug check the holes for food scrap on the arms.

baldyjoe, July 2009