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    Onan MDKAF dies when start button is released

    @mysweetLord: please find attached a picture of the production sticker. Thanks!
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    Onan MDKAF dies when start button is released

    Dear Iuna, please find a picture of the main board attached. We have two circuit breaker, "check engine" and "check generator". Neither of them popped, so I assume it is a grounding issue. I will be on boat end of August and will do further checks. Regards
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    Onan MDKAF dies when start button is released

    Thanks, but would the check engine circuit breaker activate if a sensor is faulty? It is so strange that the breaker is not activated, which indicates a wiring/electrical connection issue? As soon as I am back on the boat, I will start cleaning grounding points and tracing the voltage loss of...
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    Onan MDKAF dies when start button is released

    Hi everyone, thanks for all your replies!! Here is a short summary of your questions: - the generator is so old that it does not show fault codes - no fault circuit breakers pop - even when generator is stopping after 1 hour, the water pump housing feels cold, coolant level is full, so it is...
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    Onan MDKAF dies when start button is released

    Dear Forum, I am new here. My name is Alex, and I am from Austria. My family owns a Horizon 70 from 2002 with an Onan MDKAF installed. It has only about 2.500 hours on it. It has been running fine without any troubles for 20 years. It has been serviced every year. Since this year, we have had...
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