I have a 2009 model Aurora Diesel Portable Generator with a brushless generator. The problem I am having is it puts out electricity at 49 to 54 HZ. I have tried to raise the diesel rpms but have had no luck. The company advised I replace the capaciter which I have, No change. Can anyone recomend anything or in the area of central Kentucky, someone I can get who can work on this generator for me ? This is agravating ! it has 15.1 hours on it. I am not sure that it ever ran at 60 Hertz.