How to fix Invalid shutdown m/n on Koehler generator

Had the ' engine m/n invalid shut down on my 12resv Kohler generator. Off light was blinking red. Clicked the select button 3 times to clear fault and confirmed Y ...then went to the Gen set information which is a few more menu down with the arrow button. It did say 12Resv so had it blink and rest it but same thing. so rest fault again and went back to the gen set information tab and I changed it to 14resv and all cleared without out fault and tryed to hit run for a min . Ofcourse it's wrong model number so would not start but did not fault. So I went back to the Gen set information menu and put it back to the original 12Resv and it started right up without fault. I placed back in Auto and been working ever sense. Has friend had same problem and as with mine it happened on a night where power went on and off multiple times. Think its really just loosing informsiton to recognize the unit to controller and needs reset or flashed if you have the OnCue will work as well....one more thing good idea I'd not sure your battery is good over 12v to pull terminals and physically check with a multi meter should be liek 13 4 volts or so for optimal starting. Good luck this was a head ache and see others have had problem ..tony Michigan