AEG Lavamat 52810 unpredictable fault

Went to an AEG Lavamat 52810 (PNC 914524015) which was aborting the program after the initial pumpout, sometimes at once, sometimes after some filling (2 secs), and once filled up to level for a wash, did a few agitations, then aborted. It faults on all wash/rinse pgms. Does the spin cycle no problem.

No analogic pressure switch on this machine, just a plain old pressure switch which I checked for blockage. Physical checks showed: Pumps out OK, fills to level sometimes (on accasions;did it once for me and once for the housewife) door locks OK, motor/spin OK, tacho not fallen out, heater not O/C and meggered OK. Did not physically inspect PCB except for loose connectors (none).

I do not have the TDS so would be grateful if somone would email me the PDF or at least the diagnostic routine for this machine. I have others but not this one.

I am suspecting the PCB at this point, but usual dilemma – do not want to buy one in unless certain. All suggestions/PDFs very welcome.

Cheers
(mike@appliancelink.co.uk)