I fired up my generator after several months and it over-volted because the voltage regulator failed. It got the circuit board in the Sharp Convection/Microwave and a fuse in the VCR/DVD. Parts were not available to fix the Sharp (my wife just loves the new 2006 model). From now on I am going to flip the AC breakers (except MAIN) before starting the generator. Then if the voltmeter shows 120V I'll know all is well. I hope this post may save someone else from an over-volting generator.