Hi

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?

Thanks!