Odd Onan issue
I have an Onan 5500 that has always started easily and run fine. Has about 240 hrs. I have a guy doing some inside work today so I showed him how to start it and turn the heat on as it was cold. He ...
Forum Discussion
rcpd34 wrote:
Ok; I finally got out there today first nice day off. Dumped 4 cans of Seafoam in and started it. Ran for 10 sec and stopped would not restart. Code was 36; fuel. I saw the factory fuel filter was still there and remembered that Onan recommends it be replaced with a pass through. I had one on on hand from my prior camper so I swapped it out. Cranked it with the supply hose off and I have fuel. Put it back together and started it. Started up and ran for about 30 mins under various loads. Runs perfect. Removed the load entirely and it dies within 30 sec. Checked the code and it's 14 this time; Overfrequency fault. (Engine governor unable to maintain rated freqency. Corrective actio: take to dealer. Any ideas?
Might want to clear fault codes, retest for shut down and verify its fault code 14 and not 36.
If it is code 14 shutting it down, start gen-set, quickly put it under a load, and connect a multimeter(with hz option). Verify voltage, then set meter to hertz and watch what happens. Note what the hz are under load. Note what hz are when you remove the load. Note what the hz are immediately before it shuts down. Watch the meter carefully. Post results here.
jmo
