Generator rpm fluctuates with load

nitro115 · Post by **nitro115** » Thu Sep 04, 2008 6:00 pm

Hi,

I have a 6.5kW Onan. After a few minutes of running I turn on the A/C and the rpm begins to go up and down. This stops after about 1 minute, or so and the genset runs at a steady rpm. Does anyone know how to fix this? It's not something I cannot live with, but it's annoying. Sort of.

Thanks in advance!

jwrape · Post by **jwrape** » Thu Sep 04, 2008 6:11 pm

Yes, mine was doing the same thing. After i converted to electronic ignition, it stopped. Now when the A/C is turned on it boggs breifly when the load is applied and then it picks back up and stays steady. Here's my how to with pics.
http://www.smokstak.com/forum/showthread.php?t=50493

nitro115 · Post by **nitro115** » Thu Sep 04, 2008 9:11 pm

Thanks for the info and photos, great help! Where can these parts be ordered from? Again, thanks for your quick reply and detailed instructions!

jwrape · Post by **jwrape** » Fri Sep 05, 2008 7:20 am

You can get them from your nearest Onan Cummins dealer.
http://www.cumminspower.com/na/

nitro115 wrote:Thanks for the info and photos, great help! Where can these parts be ordered from? Again, thanks for your quick reply and detailed instructions!

Safari · Post by **Safari** » Fri Sep 05, 2008 8:37 am

If the idle adjustment is a little out, it can cause that. When the unit is fluctuating, try turning it up a notch or two. There is a sweet spot where it will stop fluctuating, but still be OK when under light load.

nitro115 · Post by **nitro115** » Sat Sep 06, 2008 10:09 am

Thank you guys for all the tips!