In this case, the generator had been working for more than 6 hours and then suddenly the electrical output stopped although the engine, of course, was still running.
Ok, understand.Worth a shot on the flashing, only takes a few minutes of time.
It does not have brushes, but does have the parts below:
27003012S Diode Or Rectifier 099845-02 Capacitor, 80 Mfd
You could measure the Capacitor if you have a multi meter with a CAP setting (MFD)
Or checking Diodes- Click HERE
Parts Listing HEREIf that does not help, I can opt out for other experts to give their input as where to continue on troubleshooting.Dayton is a Grainger brand product and very difficult to get information and service manuals on them, so I just do not have the references to proceed any further.