Hi,
I have the above dishwasher. The dishes on the upper rack are not getting clean. Lower rack they are fine. I filed it with water and let it start and opened the door to see if spray arms were moving. Top arm was turning as was the lower arm. Middle arm, under tray, not turning at all. Remove mid spray arm and it seemed clear and water then came out where I took the arm off. Put the arm back on and still no turning. You can however spin the spray arm freely by hand. Any help out there.

Thanks :(

Lots of posts about middle dishwasher spray arm not rotating. The spray arm was removed and appeared to be completely clean. I couldn't find instructions on removing the lower spray arm with a telescoping tube so as I last resort I decided to use a bottle brush and poke it down the central telescoping tube. Although I couldn't see anything, there must have been something lodged in it which prevented sufficient stream pressure to cause the middle spray arm to rotate. One push of the bottle brush fixed the problem!