Bosch Aquastar 6.0L. Top Spray arm not working Home › Forums › Public Support Forums › Help And Support › Dishwasher Help Forum › Bosch Aquastar 6.0L. Top Spray arm not working This topic has 1 reply, 2 voices, and was last updated 10 years, 1 month ago by manwa9. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts February 25, 2016 at 11:54 am #87715 manwa9Participant SMS65E28GB/55 No water from Top tray connection to spray arm. Lower spray arm works ok. Is this model fitted with a Diverter valve? If so is this a separate valve or part of the Heater unit? Many thanks. February 25, 2016 at 4:37 pm #435787 MartinParticipant Re: Bosch Aquastar 6.0L. Top Spray arm not working Yes and yes it’s separate! Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In