Zanussi dishwasher overfilling ZDT21006FA

[boselecta]

911539205-00
82216989

Appliance overfills until it leaks them stops after a few minutes.

i have replaced the pressure switch kit and put on the extended pressure hose but it still persists to overfill.

any ideas please?

[Hollytree_Technical]

Did the old pressure switch have a hose? the parts list and line drawings suggest not – if the drawings are right then I would put it back to how it was but with the new switch.
Does the wash pump meter out okay and can you turn it by hand?
I have had one of this series machines where the board nucked itself causing a similar issue – it may be worth a visual inspection for burn marks (I know….its a pain having to pull it out to get to the module).

Jem

[twicknix]

Might be too far back to remember but I have just come across with the same fault for same dishwasher, the original fault was problem with filling and not starting up/ drain and fill loop.

replaced pressure switch sensor – this one does not have a hose as it is attached to the sump, calibrated the water level by using few drops of rinse aid and water up to the sensor inlet to let it stand in the sump for 10 mins. Dishwasher worked fine.

Now it is overfilling? If this what you are saying as above about the board being burnt out, what would be the cause of it or just bad design?

[Author]

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