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MM2 turns on then off

Discussion in 'Fisher Engineering Discussion' started by WOODY367, Jan 6, 2011.

  1. WOODY367

    WOODY367 Senior Member
    from LI, NY
    Messages: 467

    My MM2 has worked fine so far. Hooked up today and it turned on, then off completely, lights,controler, everything. then on again and then off. Some times its every few second and the something it a few minute. I cleaned all conection and played with them to duplicate the problem and no luck. Checked all conections on the isolation mod. but nothing.
    Is there a relay or breaked thats going bad?
     
    Last edited: Jan 6, 2011
  2. WOODY367

    WOODY367 Senior Member
    from LI, NY
    Messages: 467

    How many pins should each plug have? Light, pump?
     
  3. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,031

    Power connector 2, Light 11, and 3 on the control connector...7 if it's a V blade.
     
  4. WOODY367

    WOODY367 Senior Member
    from LI, NY
    Messages: 467

    Thanks, wanted to make sure 1 pin didn't break. Couls the isolation modual be going bad?
     
  5. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,031

    It sounds like a loose connection...whether it's the controller, a pin, or other connection some where......

    Check the battery connection, relay connection (I once saw a broken stud on a relay due what your describing, but it would only act up when he hit a snow bank or bump, not sitting still), what kind of condition are the grill connectors in, could be a pin barley hanging on, or a pinched or crimped wire. If you can't find anything obvious I would suggest tracking all the wiring looking for a weak wire.
     
  6. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,031

    I wouldn't think so. It's either toast or it's not. I'm confident this is a connection issue....whether a actual connection of some sorts, or a boken wire.