Zoeller Sewage Pump switch doesn't always work

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by cej22, Mar 18, 2009.

  1. cej22

    cej22 Member

    Messages:
    33
    Location:
    Seattle, WA
    I'm having a hard time finding an answer by searching.

    I have a house that's about three years old and over the last few months the sewage pump has failed to turn on three times, causing minor flooding in the unfinished basement. When it fails, I can lightly kick the discharge pipe and the pump starts immediately. It's a green Zoeller pump, but I can't determine the model number. If I had to guess based on the shape of the top and the price point of the home, I would say it's probably an N57. It has a separate float switch, but I don't have the slightest idea how to determine what brand it is.

    Is it a fairly safe assumption that this is a problem with the switch? What would cause the switch to fail very occasionally? If so, is the answer to change it with the Rhombus VerticalMaster switch? Are these commonly found? I called the big plumbing supply place I've used before and they are not a distributor.

    I think I'll also install an alarm. Any recommendations?

    Any guidance here would be greatly appreciated. Thanks.
  2. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,347
    Location:
    Cincinnati OH
    Is this pump ejecting sewage from bath or is it for just ground water?
    Ii maybe that the float switch arm needs to be cleaned.
  3. cej22

    cej22 Member

    Messages:
    33
    Location:
    Seattle, WA
    It is for sewage and the float switch is tethered.
    Last edited: Mar 18, 2009
  4. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,347
    Location:
    Cincinnati OH
    Is this the pump? It`s an M57

    Attached Files:

    Last edited: Mar 18, 2009
  5. cej22

    cej22 Member

    Messages:
    33
    Location:
    Seattle, WA
    I think it's the "N" version, which doesn't have the attached float.
  6. change the switch

    buy yourself a verticle master switch and just stand on your head in that pit and change out the bad switch...

    all you got to do it take a pair of wire cutters and cut away the switch... then attach the new switch to the pvc pipe and set it to the right height...

    remember ..... dont fall in...

    and dont cut the pump wire


    [​IMG]

    Last edited: Mar 18, 2009
  7. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,347
    Location:
    Cincinnati OH
    The only N57 is the oil smart system.Can you send a picture?
    Last edited: Mar 18, 2009
  8. cej22

    cej22 Member

    Messages:
    33
    Location:
    Seattle, WA
  9. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,347
    Location:
    Cincinnati OH
    It is the basicly the same as the one I showed earlier.
    Get some rubber gloves and toggle the arm coming out of the side at the
    top several times to see if there is an obstruction.Un plug it first and
    toggle the switch the plug it back in and toggle while plugged in.
    Then run water to see how it operates.
  10. cej22

    cej22 Member

    Messages:
    33
    Location:
    Seattle, WA
    Thanks for the advice. I replaced the switch with a Rhombus VerticalMaster and installed their indoor alarm, as well. Everything seems to be working fine.

    The bad float switch was a Zoeller that was only 4 years old and the pump gets very little use. Not very impressive.

    Mark, I managed to not cut the pump wire and not fall in. ;)
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