L4-31 on a MX-C312

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  • Sharptech56
    Trusted Tech

    100+ Posts
    • Feb 2016
    • 100
    #1

    [Error Code] L4-31 on a MX-C312

    Hi All
    I have a MX-C312 that has a L4-31(paper exit cooling fan motor malfunction) I have changed the fan , updated firmware and replaced the PCU pwb
    and still the L4-31 comes back any suggestions
    Tags: None
    • spanky
      Trusted Tech

      250+ Posts
      • Sep 2012
      • 468
      #2
      Re: L4-31 on a MX-C312

      Clean the connection between the right door and the engine.

      This gets dirty and causes this code.

        Comment

        • Sharptech56
          Trusted Tech

          100+ Posts
          • Feb 2016
          • 100
          #3
          Re: L4-31 on a MX-C312

          Wow! Thank you I would have never guessed that . I will try cleaning it today .

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