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Rudyp's avatar
Rudyp
Explorer
Jun 13, 2014

5000 Onan Gen (Diesel) mod: 5.5HDKBA359OC Series C

Hope someone is able to help me out. I am getting a code 45 on my above described generator. Can you tell me what this code means. And if you know the problem will I be able to correct it myself? If not approximately how much will it cost me to have it repaired at Cummings? Thanks to all who respond and help me out. Have a great weekend.

4 Replies

  • ronfisherman's avatar
    ronfisherman
    Moderator
    Jun 14, 2014
    Handbasket wrote:
    You might want to ask the moderator to move this thread to the tech section. More Onan techs visit there and often provide some real good solutions.

    Jim, "Don't steal. The government hates competition."

    Good idea.
    Moved from class C.
  • Handbasket's avatar
    Handbasket
    Explorer
    Jun 14, 2014
    You might want to ask the moderator to move this thread to the tech section. More Onan techs visit there and often provide some real good solutions.

    Jim, "Don't steal. The government hates competition."
  • Rudyp's avatar
    Rudyp
    Explorer
    Jun 13, 2014
    Hi Ron, thank you. Hope you and the wife are fine. No not yet. Guess that the next process of elimination. Any plans for the summer? By the way do they sell after market fuel filter, air filter and oil filter, Cummings/Onan parts are pretty over priced. Again thx.
  • ronfisherman's avatar
    ronfisherman
    Moderator
    Jun 13, 2014
    From the owners manual:
    SPEED SENSE FAULT—CODE NO. 45
    (Controller unable to sense quadrature frequency)
    Corrective Action: Check the fuel level and fill as necessary. Then prime the engine fuel system by
    holding the control switch at Stop for one minute and try restarting.

    Looks like you may have a fuel supply problem. Have you changed the fuel filter.

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