F28-3 on KM 7145

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  • Jett
    Technician
    • Dec 2009
    • 30

    #1

    [Error Code] F28-3 on KM 7145

    I've got an F28-3 error on a KM7145 and I can't seem to get my head around this.

    btw changed developer recently


    Thanks
    Jett
  • Albonline
    Service Manager

    1,000+ Posts
    • Sep 2008
    • 1144

    #2
    try replaceing the T/S corona, also look at the T/S transfer block on the door this unit is known to eat these parts up.

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    • copytechman
      Senior Tech

      Site Contributor
      500+ Posts
      • Nov 2008
      • 929

      #3
      From da book:

      F28-3 Separation lightning abnormality

      When the EM signal (separate_em) is detected 3 times at the specified intervals, this phenomenon occurs 5 times in 1 job. The main body stops immediately, and the RL1 (Main) turn OFF.

      Separation corona
      HV (High voltage power)
      CB (Main body control board)

      Yup, go with what the prior poster said, either the block and insulators on the door or the trans sep unit itself. Been there, done that!

      Regards!
      A.

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