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Old 05-23-2024, 09:19 PM   #1
Join Date: Jul 2023
Posts: 33
Generator Problem

I have an Onan 4000 generator in my used FR Sunseeker. I had it serviced about a year and it has run fine. Today I tried to start it and all I got was a whirring sound, but no attempt to start. Anyone have any idea what the problem could be?

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Old 05-23-2024, 09:47 PM   #2
Senior Member
Join Date: Feb 2018
Location: TEXAS
Posts: 9,475
Are your house batteries at full strength? Sometimes if your house batteries are weak, you can start the chassis engine and get the boost you need to start the generator.
Have you primed the generator?
Have you 'exercised' the generator every couple of months? If you haven't, the carberator can become clogged.
Do you have less than 1/4 tank of gas? The generators are set to shut off if you don't have enough gas.

There are other things that can cause problems, but start with the batteries and trying to start it several times.
2015 Dynamax REV 24TB class C
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Old 05-24-2024, 10:12 AM   #3
Join Date: Jul 2023
Posts: 33
Thanks. It was low batteries.
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