Siemens WM12P160GB/03 washing machine- wont drain but no blockage.

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  • November 22, 2019 at 10:38 am #96771
    Raymo99
    Participant

    Hello forum,
    I have a Siemens washing machine WM12P160GB/03 which wont drain.
    I have cleaned out the filter and drain pipe several times, both are clear, but it still reports the same error.

    When switched to Empty, the machine makes a loud humming noise, but doesn’t start the drain sequence (drain sequence is normally louder with a definite sound of pumping water).
    The fault is intermittent, because after filter cleaning where I check and turn the impeller manually it seems to work again, but then fails on the next full run cycle.

    Any ideas?
    A problem with the pump? brushes perhaps?

    I previously replaced brushes on the drum motor about 12 months ago.

    Thanks
    Ray

    PS, I just discovered that I can trick it into draining by switching it to ‘refresh’ program and letting it turn over a few times, then back to empty and it starts to drain ok…
    I’m puzzeled now?

    November 22, 2019 at 12:36 pm #464767
    murv
    Participant

    Check for blockage in the hoses, pump and waste plumbing. If none it’s most likely the pump at fault.

    Murv…

    November 22, 2019 at 1:04 pm #464768
    Specialist01269
    Participant

    As Murv said above, from what you describe it sounds as if you have a faulty pump.

    November 22, 2019 at 1:18 pm #464769
    Raymo99
    Participant

    Thanks guys,
    In removed the pump intending to take it to a spare’s shop, only to see a white plastic object stuck behind the impeller.
    Foreign object removed and all is well… pumping as normal.

    Lesson learned, use a torch to inspect the impeller ! even if it seems to turn ok.

    Thanks again !
    Ray

    November 22, 2019 at 1:24 pm #464770
    Specialist01269
    Participant

    Don’t sweat it buddy, truth be told we’ve all been caught out by dumb things like that & ended up kicking ourselves;).
    Be glad you looked before buying a new pump, a good bright torch is essential when working on appliances.

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