Question about Onan Cummins 4.0 KY-FA/26100 RV QG 4000 4000K Gasoline Generator Micro

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My generator runs great but when i turn on a/c it runs about 40 seconds and have a code 15 then reset turn generator back on let it run and turn on microwave and does same thing what do i look for?

Model number 4KY FA26100J

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Hello dear, have you found any effective ways to solve your problem? If you haven't, visit this website to know more information about generator tech.

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Have Onan 3.6 KY propane gen that will not keep running. Runs only as long as start switch is pushed. Then stops immediately after release. Fault code is 15 (underfrequency) and suggests removing heavy...


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