I have a problem with my Diplomat (Beko) 8640 integrated dishwsher. Water is coming in and going out of the machine but the spray arms (top & bottom) do not appear to be working. They do not move. I have taken them out and cleaned them and water is running through them OK. It is almost as if the water pressure in not strong enough. But I do not have a problem with my water pressure. The water also heats up OK and appears to get pumped out OK.
Any ideas what the problem is ?