NoSpam wrote:

Does anybody know anything about Dishwashers?

My Neff S5555 isn't cleaning things properly in the top tray. The arms
aren't blocked and spin freely by hand; the water fill and heating are OK.

During a wash the top arm seems to be in the same position so I doubt
that water is reaching it (but the feed pipe from the pump is clear).
- Is there a valve that controls water flow to the top basket? If so,
how do I get to it?

- Are there any parts or assembly drawings available anywhere?

Dave

My Bosch developed a habit of doing this with the top spray arm. Cleaning
everything made no difference.

In the end, I defeated the door interlock, and ran it with the door ajar for
a moment and got wet. However, the problem revealed itself:

The top arm was a sloppy fit on the axle. Plenty of water was being pumped
to the arm, but half of it came out of the axle "bearing", which was fine
in that it washed the lower basket. The upper arm jets did produce a decent
spray, but at reduced pressure, and it seemed that the angled jets on the
ends that are supposed to produce jets with a lateral component to spin the
arms, well, weren't. Water came out, but nearly vertically - not enough
horizontal component.

So, I drilled two 3mm holes in the side of the arm near both ends of the
upper arm and the problem is solved.

So, I reckon it was a design fault, but easily solved...

Cheers

Tim