Onan shuts down under load without shutdown codes

Mark Pitt

On my first sail trip of the season, my Onan MDKAV shuts down under load after 15 to 20 minutes.  No blinking codes.  Does not matter is the load is from the watermaker or AC.  It does not shut down from a charger load, or any load under about 15 amps.  I changed all the fuel filters but that did not help. Plenty of water coming out the exhaust.  Overheating should generate a shutdown code in any case.

Any ideas?

Mark Pitt
Sabbatical III, SM419, Rhode Island, USA

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