Generator runs 30 minutes, shuts off
My Onan NHE 6500 just started with this problem. Starts fine and will run for 30 minutes with a/c on. Shuts off and will restart if I wait about 3 minutes and runs for another 30 or so minutes. If I t...
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We had a similar problem with a 5ver a few years ago. The gen would run for 20 minutes and then shut down. It would re-start after some cranking and then shut down again in 20 minutes.
After much searching, we found that we had a bad check valve at the fuel tank (located about 30' from the gen). There was enough fuel in the line to run for 20 minutes, then it would get air.
A somewhat easy test it to disconnect the fuel line and run a temporary line to a fuel can. If it runs OK with the substitute fuel supply, then you have located the problem.
After much searching, we found that we had a bad check valve at the fuel tank (located about 30' from the gen). There was enough fuel in the line to run for 20 minutes, then it would get air.
A somewhat easy test it to disconnect the fuel line and run a temporary line to a fuel can. If it runs OK with the substitute fuel supply, then you have located the problem.
