On Sun, 20 Apr 2008 21:03:54 UTC, "Greg" wrote:

Seem to have a bit of a problem with the top shelf of the dishwasher which
means that the dishes placed there do not get washed and the ones below are
only clean-ish. When I turn it on and open the door to see what's happening
it looks like I get a little burst of water from the top outlet and then
nothing else there, even if the bottom arm is turning and spurting
water(although I have not discounted the fact that there is possibly a valve
that alternates water between the top and bottom arms).

Anyone any ideas on the issue and whether it is worth fixing, or should I
bite the bullet and get a new machine given the cost to repair it?

Gunge in the pipes.

Descaling - perhaps. I've not noticed significant scale anywhere and
we're in ahard water area.

Gunge - grease, fat etc. deposits are likely in internal pipes. A sod to
clear by hand but try a proprietary dishwasher cleaner (e.g. Finish do
one). You stick the bottle (has a wax seal) in the top tray and do a
wash. Repeat, possibly, if the blockage is bad.

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