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Unimount plow, stuck up and left

Discussion in 'Western Plows Discussion' started by raMpLOW, Mar 7, 2014.

  1. raMpLOW

    raMpLOW Junior Member
    from 60638
    Messages: 5

    I have a unimount pro series plow. That is stuck up and left! I have changes already the harness for the plow and truck side harness well as the 3 coils on the plow! And still nothing is working if someone can please tell me what's wrong with this thing before I just take to the scrapper! Thank You for your time
  2. mishnick

    mishnick 2000 Club Member
    Messages: 2,353

    Assuming that the pump motor is turning when u hit up, left or right, it sounds like u have multiple valve problems. If S3 was stuck open and S1 was not opening it would do what u describe. Since u have replaced all the wiring and coils that leaves only controller and valves. If u have access to a different controller that's an easy test. Just plug it in and try it, if that doesn't work u know its valves. S1 and S3 are the two outside valves. Pull the coils off and then pull them like spark plugs. Just make sure u have a jack under to relieve the pressure (if it is stuck up) or it will drop when u pull S1.
  3. xjoedirt55x

    xjoedirt55x Senior Member
    Messages: 104

    I can speak from experience with a bad controller. I thought for sure I had other problems, but the controller ended up being bad. You can also directly power the controller with 12v and use a test light to see if it is functioning correctly.

    Good luck.
  4. mishnick

    mishnick 2000 Club Member
    Messages: 2,353

    U can test the controller on non-multiplex models but it's not simple. U need to b sure u don't put power and or ground to the wrong pins or u can toast it. And u need to know what output to expect. Just plugging in a different controller is easier if u have one.
  5. Western1

    Western1 Senior Member
    from MI.
    Messages: 752

    My money is on the controller! Check that first.