Small Engines (Lawn Mowers, etc.): Kohler Boat generator, boat generator, power generator

Question
My boat has a Kohler 13eozd power generator. Without reason, it starts displaying the UU code (under voltage) and shuts down.
What do you suggest it can be?
Thank you in advance for your help.

Answer
>>Hello Luis:

>>It is Possible the Brushes are Worn and Require Cleaning.
>>Send me the Complete Model Numbers Off the Unit, Please. With these I can Locate the Proper Manual and Better Assist you.
>>Thanks

Respectfully

John

PS: I am Allowed to Answer 3 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.

Respectfully

John