Dishwasher not swishing: circulation pump gets no power


Hi,
Here in England, I have a Beko "DE 2541 FX" slimline dishwasher that stopped working properly... just before Christmas.
When I press the button to start the cycle, the machine drains and then fills as normal and then -- instead of kicking into that rhythmic swishing sound -- it just sits there in dead silence. After 15 minutes it might fill again, and if left might fill yet again after another while. But it never kicks into wash mode. It does this even on the simple no-heat, pre-wash setting.
I checked the heater, it looks perfectly fine and is not open-circuit.
I checked the thermistor, fine, it correctly changes resistance when it's in hot water.
Everything looks pretty much perfect, after all it's only three years old.
The main circulation pump looks pristine, and so does its capacitor. But when I measured with a multi-meter across the terminals of the pump (insulated crocodile clips!), I discovered that at no time does it receive any voltage.
I decided to replace the controller card (only 30) and today I find it still has exactly the same problem with the new controller installed. Argh!
So what is the real culprit? Can anyone help? I know there is a circulation sensor, a thermistor, and various door safety and overfill doodads but I am not sure what exactly would cause this particular problem.
I would be grateful for anyone's experience and expertise: I don't want to be defeated by this thing!
With many thanks,
Sandy
P.S. - I have obtained the circuit diagram of my Beko dishwasher, the logic of which was designed by the Turkish company 'Arcelik'. (I don't understand it very well, chiefly because the diagram's labels got scrambled at some stage. And some of the symbols I don't immediately recognize, or they're just "circles".) I would be most grateful if someone took an informed guess as to what the components must be. I could then relate the diagram to my actual dishwasher's control board, components, wiring and mechanisms. Anyway, I've scanned and uploaded the diagram here:
http://i49.tinypic.com/28r1thw.jpg
Many thanks again.
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I assume the unit uses an electronic controller, and not an electromechanical one. If it /is/ the latter, check the timer switch.
If it's the former, it could just be a bad wire or connection between the controller and the pump.
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Terrible diagram. Can't think how that was meant to help.
Check switch 06 carefully. One side may be broken. WITH PLUG OUT!
There is some kind of fusible link (7A) above motor 630. Check that.
The switch &2 looks like it may be me kind of heat selector switch. Is it?
Check the link 7). A fuse?
What's "0 DLQ%RDLG" ? A hybrid PCB potted in epoxy?
You said the dishwasher was cheap. Afraid you now know why.
Arelik is a big factory in Turkey. Any "brand" of white goods you buy in Europe now comes from there.
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Oh yus. Especially if you're in the habit (as I am) of opening the machine mid-cycle to chuck something else in.
The machine filling, pausing, filling suggests it doesn't know where the water level is.
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