Question about Zoeller M53 Mighty Mate Iron Body, Poly Base Automatic Sump Pump 1/3 HP

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Rapid on/off switching while crock is drained below float level

It's sort of like fibrillation. When I jiggle the flost trip lever a few times it seemed ok but problem recurred several hours later. Did the same thing and it has stopped for now. Can't find record of installation. I think it is about 5 yrs. old. I have a Zoeller water powered back up installed next to the main pump as per specs.

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  • Jim London
    Jim London May 11, 2010

    Hi, how is this unit powered? does it have two cords so that the float switch turns off the unit by piggyback cord?


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  • 332 Answers

Check the check valve it could have mud or just debris on the flap,, take it apart and clean it out see if this doesn;'t help after that you might just want to change the pump if it is in a high volume usage, area

Posted on Jun 30, 2009

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SOURCE: where can i buy a replace float road for a m98-b

zoeller is a pump normally found only at plumbing and heating supply houses. they should carry or can order thge part for you

Posted on Jan 07, 2010

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