Polar 76EM error 84

Discussion in 'Cutters and Trimmers' started by leddookie, Mar 16, 2020.

  1. leddookie

    leddookie Member

    Joined:
    Sep 2014
    Messages:
    17
    Location:
    Portugal
    Hello friends,
    Anyone have a clue about error 84?
    It started to happen one time after other and nothing happens, only the error is on the display ....

    Best regards
     
  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,314
    Location:
    Managua,Nicaragua
    Hi sir:
    1) Problem the locking valve Y 315 is lack for +42 Vdc is missing. look for connector 6.8

    2) test in the connector 6.8 for +42 Vdc for locking valve.

    3) Check continuity with the cables for connector.

    4)check the resistance for coil of locking valve Y 315.

    5) If everything is o.k test the Electronic boards: IAR - AR.

    Blessing
     
  3. leddookie

    leddookie Member

    Joined:
    Sep 2014
    Messages:
    17
    Location:
    Portugal
    Thank's for your quick answer Mr. Chock.
    First i must correct machine model, it's a 92EM. In this case, the error would be similar to the 76.

    I checked for issues with the y315 valve, and everything seemed ok.
    I noticed that, in the IAR board, the red LED that signs the supply to the y315 was off.
    So, i tested the IAR and AR boards on other machine, when i switched, only, the AR board, the error 84 was shown on this other cutter.
    I think you're right....AR board is not ok.

    I'll be back to you, if you don't mind of course....

    All the best...
     

  4. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,314
    Location:
    Managua,Nicaragua
    ok sir
    Please do that i did indicate.
    Let me know, please
    Blessing
     
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