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No power to left or right cartridge terminals

Discussion in 'Fisher Engineering Discussion' started by milk123, Feb 3, 2011.

  1. milk123

    milk123 Junior Member
    Messages: 5

    Plowing today and it gave out. It won't go up, left, or right. At first while i was trouble shooting the top two valves were magnetizing and not the bottom one. now only the down one is working(top right). when i supply power to the terminals that have none, and leave on the regular ground, everything works. why have i lost the power to these two soleniods? just to add, motor runs on every function(except down), it's one of those sehp's
     
  2. buddymanzpop

    buddymanzpop Senior Member
    Messages: 599

    First things to look at would be the wiring, especially at the grill plug for breaks, test with another controller to eliminate that also.
     
  3. milk123

    milk123 Junior Member
    Messages: 5

    not getting continutity on left angle. where's a good (cheap) place to get a controller if i need one?
     
  4. milk123

    milk123 Junior Member
    Messages: 5

    Controller is fine. tried it on another truck. where to now?
     
  5. buddymanzpop

    buddymanzpop Senior Member
    Messages: 599

    Sehp

    Go to www.fisherplows.com on the home page click esearch option, type in 21935 and hit search, your SEHP Mechanics guide will come up, save this file. If your controller is good and the signal is not reaching the coils it has to be a wiring problem, so look at the wiring schematics it will give you the color and function of the wiring, also in there will be a diagram of the grill plugs to show where and what each pin is, check for continuity on your control wires from in cab control plug to grill plug (truck side) and from grill plug to coils (plow side).
     
  6. milk123

    milk123 Junior Member
    Messages: 5

    Thanks guys. It was in the connector at the grill. Now that i've figured that out, i had just about every part out. now when i'm plowing and i try to pile the snow(raising as i go in) the plow angles to the left when i hit the pile. Any ideas?
     
  7. dynamic

    dynamic Junior Member
    Messages: 4

    either the popet check valve is stuck open or you need a new cross over releif valve!