Kohler 12 kW Emergency Power System - 12RES-L Logo
Posted on Jul 23, 2011
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My Kohler Model 17RES threw an Overspeed Shutdown code. I have been unable to reset the system. It makes a short "chattering" sound around the circuit board area when I try to manually switch the button to start. Any ideas? Thanks, Jeff

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  • Posted on Sep 06, 2011
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The chattering sound is the stepper motor trying to cycle. Check to make sure there is no interference, move the throttle linkage by hand back and forth fully as sometimes the 17, 18, and 20 butterfly valve sticks on the carburetor gasket. If this happens, remove the gasket and use a file to put a good bevel (45 degree angle) in it to stop it from hitting. Thats all it takes.

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